Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 43. Отображено 42.
16-02-2017 дата публикации

PERIMETER PILE ANCHOR FOUNDATION

Номер: US20170044733A1
Автор: Allan P. HENDERSON, HENDERSON ALLAN P, HENDERSON Allan P.
Принадлежит:

A perimeter pile anchor foundation is built by forming a plurality of individual perimeter pile anchors in a large generally circular pattern to form a perimeter wall. The individual pile anchors are contiguous, each pile overlapping the adjacent piles on either side. The overlapping pile anchors form an arch such that compression and friction between the pile anchors resist soil caving and sloughing pressure when soil inside the perimeter wall is excavated, enabling the perimeter pile foundation to be effectively constructed in weak saturated soils and/or cohesionless sands that will not allow conventional concrete foundation excavations. A concrete foundation ring is formed inside the pile perimeter wall to support a tall and/or heavy tower or other structure subject to high upset forces. 127-. (canceled)28. A concrete foundation having a pile anchor perimeter wall for supporting a tower or other structure subject to high upset forces which comprises:a plurality of pile anchors made of cementitious material extending downwardly into surrounding soil, said pile anchors arranged in a generally circular pattern with adjacent pile anchors overlapping one another to form a generally circular pile anchor perimeter wall that defines a continuous pile anchor perimeter, said generally circular perimeter wall surrounding a center area;said overlapping pile anchors around said continuous pile anchor perimeter forming a continuous arch, with compression and friction between the overlapping pile anchors resisting soil caving and sloughing pressure when soils in the center area are excavated following formation of the pile anchor perimeter wall;a first corrugated metal pipe (CMP) placed vertically inside the pile anchor perimeter wall after the center area is excavated, said first CMP being spaced from said pile anchor perimeter wall to create an annular ring between the first CMP and the surrounding pile anchor perimeter wall; andcementitious material filling said annular ring ...

Подробнее
Номер записи: 1
17-08-2017 дата публикации

RETROFIT REINFORCING STRUCTURE ADDITION AND METHOD FOR WIND TURBINE CONCRETE GRAVITY SPREAD FOUNDATIONS AND THE LIKE

Номер: US20170233975A1
Автор: Allan P. HENDERSON, HENDERSON ALLAN P, HENDERSON Allan P.
Принадлежит:

A retrofit reinforcing structure addition and method for an existing gravity spread foundation for a wind turbine or the like haying a central pedestal and a spread section is provided. The retrofit structure addition includes a collar formed around the pedestal of the spread foundation. The collar is formed by a shape sustaining member, such as a CMP, placed around the pedestal to define an annular ring between the CMP and the pedestal that is filled with cementitious material. Radial bolts extend horizontally through the collar and into the side of the pedestal. Soil and/or rock anchor bolts extend vertically through the collar, the spread portion of the foundation and into the underlying soil and/or rock substrate. The radial and anchor bolts are post-tensioned to ensure that the cementitious material of the collar remains in compression and the bolts are always in static tension, strengthening the original gravity spread foundation and extending the fatigue life thereof. 1. A method of installing a retrofit spread foundation reinforcing structure addition onto an existing concrete gravity spread foundation having a central pedestal and a spread section and supporting a tower or wind turbine , the retrofit spread foundation reinforcing structure addition including an annular cementitious collar having a shape sustaining member at its outer perimeter , a plurality of radial bolts extending horizontally through the collar and into the central pedestal , and a plurality of vertically oriented soil and/or rock anchor bolts extending downwardly through the collar and the spread section of the foundation , the method comprising the steps of:drilling a plurality of horizontally extending core holes in the sides of the pedestal for the radial bolts;inserting the radial bolts into said horizontally extending core holes in the sides of the pedestal;encircling the pedestal with the shape-sustaining member to define a generally annular ring around the central pedestal of the ...

Подробнее
Номер записи: 2
03-10-2013 дата публикации

CEMENTITIOUS FOUNDATION CAP WITH POST-TENSIONED HELICAL ANCHORS

Номер: US20130255169A1
Автор: HENDERSON Allan P.
Принадлежит:

A post-tensioned concrete cap foundation has helical anchors with pipes having several helical discs welded around the pipe perimeter to spin drill deep into subsurface soils or other soft materials with holes in the pipe for high pressure-grouting in place. The helical anchor pipes are coupled to a tensioning element for pulling and post-tensioning the helical anchor. The helical anchors are tension anchors which can be converted to compression anchors. The helical anchors in tension serve to pull the foundation cap down to compress the underlying soil while the compression anchors limit the maximum settlement of the concrete foundation cap. The foundation also includes perimeter-forming and interior corrugated metal pipes with upper and lower sleeved horizontally extending radial bolts that are secured to the pipes and post-tensioned to provide lateral foundation compression. 1. A post-tensioned concrete foundation for supporting on its upper surface a tall tower or other structure subject to heavy load and high upset forces , said foundation comprising:a concrete foundation cap for supporting a tall tower or other structure from an upper surface and having a lower surface engaged with a ground surface; anda plurality of post-tensioned helical anchors circumferentially spaced from one another, said helical anchors including a helical anchor pipe extending downwardly from said concrete foundation cap lower surface into surrounding soil underneath said concrete foundation cap, and a tensioning element coupled to an upper end of said helical anchor pipe and sleeved through the concrete foundation cap, an upper end of said tensioning element terminating above said concrete foundation cap upper surface, said tensioning elements pulling said cap downwardly and pulling the helical anchor pipes upwardly to post-tension said foundation cap and said helical anchors.2. The post-tensioned concrete foundation of claim 1 , wherein said tensioning elements have sleeves of PVC ...

Подробнее
Номер записи: 3
30-01-2020 дата публикации

CONCRETE PIER FOUNDATION WITH LATERAL SHEAR REINFORCING LOOPS AND METHODS OF CONSTRUCTING THE SAME

Номер: US20200032476A1
Автор: HENDERSON Allan P.
Принадлежит: Terracon Consultants, Inc,

A concrete pier foundation having a plurality of sleeved tower anchor bolts embedded therein and a spiral loop encasement providing lateral shear reinforcement is provided. The spiral loop encasement surrounds at least a lower portion of the concrete pier and is formed by hoop steel wrapped around the perimeter of the tower anchor bolt cage. In proper soils or rock the spiral loop encasement can eliminate the need for corrugated metal pipes, reducing the cost and complexity of construction. 1. A pier foundation comprising a concrete pier formed in an excavation , said concrete pier including a plurality of sleeved anchor bolts embedded therein in an annular arrangement and secured at their lower ends to form a bolt cage , the bolts extending from the anchor ring adjacent a bottom of the pier to above a top thereof , and a spiral loop steel addition wrapped around an outer perimeter of the bolt cage to provide lateral shear reinforcement to the pier foundation , said pier foundation excavation including at least an annular area filled with concrete in which said bolt cage wrapped with the spiral loop addition is embedded.2. The pier foundation as set forth in claim 1 , wherein the spiral loop steel addition extends over at least a bottom one-third of the bolt cage.3. The pier foundation as set forth in claim 1 , wherein the spiral loop steel addition extends over substantially an entire vertical extent of the belt cage.4. The pier foundation as set forth in claim 1 , wherein said annular area is defined by an outer CMP and an inner CMP.5. The pier foundation as set forth in claim 1 , wherein said annular area is defined by an inner CMP and a sidewall of said excavation.6. The pier foundation as set forth in claim 1 , wherein said excavation is dug as an annular trench having a center area of undisturbed native soil claim 1 , said annular area being defined by inner and outer walls of said annular trench.7. The pier foundation as set forth in claim 1 , wherein said ...

Подробнее
Номер записи: 4
18-02-2016 дата публикации

CONTINUOUS STRAND HOOP REINFORCEMENT FOR CONCRETE FOUNDATIONS

Номер: US20160047106A1
Автор: HENDERSON Allan P.
Принадлежит:

A post-tensioned continuous strand hoop reinforcement for concrete foundations is provided. The post-tensioned continuous strand hoop reinforcement compresses the concrete to prevent cracking and significantly reduces foundation deflection and distortion which increases rotational stiffness in anchor caps, spread foundations, and like foundation configurations. 115-. (canceled)16. A concrete foundation with continuous strand hoop reinforcement , for supporting dynamic tall , heavy , and/or large structures including towers and/or poles which can be precast or constructed in-situ comprising:a spread foundation including a concrete central pedestal and a concrete base spread element;a plurality of tower anchor bolts in spaced relationship arranged as a ring around a center of said foundation, said tower anchor bolts being embedded in said pedestal;a first plurality of laterally directed reinforcing elements embedded in said concrete base spread element and extending outwardly from the pedestal to an outer perimeter of said spread element near a bottom of said spread element;a first plurality of coiled strand hoop guides installed at intervals between selected ones of said first plurality of laterally directed reinforcing elements;a first continuous strand reinforcing hoop extending outwardly in a generally spiral configuration from an embedded end near the pedestal to an outer end adjacent the outer perimeter of said spread element near the bottom of said spread element, a position of said first, continuous strand reinforcing hoop being guided by said first plurality of coiled strand hoop guides;a second plurality of laterally directed reinforcing elements embedded in said concrete base spread element, and extending outwardly from the pedestal to the outer perimeter of said spread element, said second plurality of laterally directed reinforcing elements being spaced above said first plurality of laterally directed reinforcing elements;a second plurality of coiled ...

Подробнее
Номер записи: 5
07-04-2016 дата публикации

RETROFIT REINFORCING STRUCTURE ADDITION AND METHOD FOR WIND TURBINE CONCRETE GRAVITY SPREAD FOUNDATIONS AND THE LIKE

Номер: US20160097179A1
Автор: HENDERSON Allan P.
Принадлежит:

A retrofit reinforcing structure addition and method for an existing gravity spread foundation for a wind turbine or the like having a central pedestal and a spread section is provided. The retrofit structure addition includes a collar formed around the pedestal of the spread foundation. The collar is formed by a shape sustaining member, such as a CMP, placed around the pedestal to define an annular ring between the CMP and the pedestal that is filled with cementitious material. Radial bolts extend horizontally through the collar and into the side of the pedestal. Soil and/or rock anchor bolts extend vertically through the collar, the spread portion of the foundation and into the underlying soil and/or rock substrate. The radial and anchor bolts are post-tensioned to ensure that the cementitious material of the collar remains in compression and the bolts are always in static tension, strengthening the original gravity spread foundation and extending the fatigue life thereof. 1. A retrofit reinforcing structure addition for an existing spread foundation that has a central pedestal and a horizontal spread section , the retrofit structure comprising:a collar encircling the central pedestal of the spread foundation, a base of the collar pressing on an upper surface of the horizontal spread section of the foundation;a plurality of radial bolts extending horizontally from an outer perimeter of the collar, through the collar and into the pedestal; anda plurality of soil and/or rock anchor bolts extending vertically from an upper surface of the collar, through the horizontal spread section and into an underlying soil and/or rock substrate below the spread section.2. The retrofit spread foundation reinforcing structure addition as set forth in claim 1 , wherein said soil and/or rock anchor bolts and said radial bolts are post-tensioned.3. The retrofit spread foundation reinforcing structure addition as set forth in claim 1 , wherein said collar includes a shape sustaining ...

Подробнее
Номер записи: 6
14-08-2014 дата публикации

CEMENTITIOUS FOUNDATION CAP WITH POST-TENSIONED HELICAL ANCHORS

Номер: US20140223846A1
Автор: HENDERSON Allan P.
Принадлежит:

A post-tensioned concrete cap foundation has helical anchors with pipes having several helical discs welded around the pipe perimeter to spin drill deep into subsurface soils or other soft materials with holes in the pipe for high pressure-grouting in place. The helical anchor pipes include a tensioning element for pulling and post-tensioning the helical anchor. The helical anchors are tension anchors which can be converted to compression anchors. The helical anchors in tension serve to pull the foundation cap down to compress the underlying soil while the compression anchors limit the maximum settlement of the concrete foundation cap. The foundation also includes perimeter-forming and interior corrugated metal pipes with upper and lower sleeved horizontally extending radial bolts that are secured to the pipes and post-tensioned to provide lateral foundation compression. 1. A post-tensioned concrete foundation for supporting on its upper surface a tall tower or other structure subject to heavy load and high upset forces , said foundation comprising:a generally horizontal concrete foundation cap for supporting a tall tower or other structure from an upper surface and having a lower surface engaged with a ground surface; anda plurality of generally vertical post-tensioned hollow bar helical anchors circumferentially spaced from one another, each of said hollow bar helical anchors including at least one hollow bar helical anchor pipe extending downwardly from said concrete foundation cap lower surface into surrounding soil underneath said concrete foundation cap, and a tensioning element coupled to an upper end of said at least one hollow bar helical anchor pipe and extending through the concrete foundation cap, an upper end of each of said tensioning elements terminating above said concrete foundation cap upper surface, said tensioning elements pulling said cap downwardly and pulling the at least one hollow bar helical anchor pipe of each hollow bar helical anchor ...

Подробнее
Номер записи: 7
28-08-2014 дата публикации

CEMENTITIOUS FOUNDATION CAP WITH POST-TENSIONED HELICAL ANCHORS AND METHOD OF MAKING THE SAME

Номер: US20140237923A1
Автор: HENDERSON Allan P.
Принадлежит:

A post-tensioned concrete cap foundation has helical anchors with pipes having several helical discs welded around the pipe perimeter to spin drill deep into subsurface soils or other soft materials with holes in the pipe for high pressure-grouting in place. The helical anchor pipes include a tensioning element for pulling and post-tensioning the helical anchor. The helical anchors are tension anchors which can be converted to compression anchors. The helical anchors in tension serve to pull the foundation cap down to compress the underlying soil while the compression anchors limit the maximum settlement of the concrete foundation cap. The foundation also includes perimeter-forming and interior corrugated metal pipes with upper and lower sleeved horizontally extending radial bolts that are secured to the pipes and post-tensioned to provide lateral foundation compression. 1. A post-tensioned concrete foundation for supporting on its upper surface a tall tower or other structure subject to heavy load and high upset forces , said foundation comprising:a generally horizontal concrete foundation cap for supporting a tall tower or other structure from an upper surface and having a lower surface engaged with a ground surface; anda plurality of generally vertical post-tensioned hollow bar helical anchors circumferentially spaced from one another, each of said hollow bar helical anchors including at least one hollow bar helical anchor pipe extending downwardly from said concrete foundation cap lower surface into surrounding soil underneath said concrete foundation cap, and a tensioning element coupled to an upper end of said at least one hollow bar helical anchor pipe and extending through the concrete foundation cap, an upper end of each of said tensioning elements terminating above said concrete foundation cap upper surface, said tensioning elements pulling said cap downwardly and pulling the at least one hollow bar helical anchor pipe of each hollow bar helical anchor ...

Подробнее
Номер записи: 8
14-05-2020 дата публикации

METHODS FOR CONSTRUCTING TENSIONLESS CONCRETE PIER FOUNDATIONS AND FOUNDATIONS CONSTRUCTED THEREBY

Номер: US20200149242A1
Автор: HENDERSON Allan P.
Принадлежит: Terracon Consultants, Inc.

A tensionless concrete pier foundation for supporting a tower and a method of constructing the same is provided, the foundation having an outer CMP and an inner CMP with an annular space therebetween in which a plurality of sleeved tower anchor bolts are embedded, at least the outer CMP having an upper edge that is flush with the top of the foundation after the tower has been installed. A method of plumbing a tower anchor bolt cage using a bolt alignment ring is also provided that includes coupling the upper ends of the CMPs together with lateral spacing bolts that extend across the annular space. The tower anchor bolt cage is suspended from the lateral spacing bolts by the bolt alignment ring, and the lateral spacing bolts are shimmed on a low side as necessary for leveling the alignment ring and plumbing the bolt cage, before concrete pour. 1. A tensionless concrete foundation for supporting a tower comprising a concrete pier in an excavation , said concrete pier including an outer CMP and an inner CMP having a smaller diameter than the outer CMP to define an annular space between the inner and outer CMPs when the CMPs are placed within the excavation , a plurality of sleeved anchor bolts embedded in said annular space and secured at their lower ends to an embedment ring adjacent a bottom of the concrete pier , the anchor bolts extending upwardly to above a top of the foundation , the top of the foundation being defined as an upper surface of the concrete forming the foundation when the foundation is complete , and at least said outer CMP having an upper edge that is flush with the top of the foundation.2. The foundation as set forth in claim 1 , wherein both said outer CMP and said inner CMP have an upper edge that is flush with the top of the foundation.3. The foundation as set forth in claim 1 , further comprising a plurality of lateral reinforcing and spacing members bolted to the inner and outer CMPs and extending horizontally across said annular space claim ...

Подробнее
Номер записи: 9
11-09-2014 дата публикации

PERIMETER PILE ANCHOR FOUNDATION

Номер: US20140255106A1
Автор: HENDERSON Allan P.
Принадлежит:

A perimeter pile anchor foundation is built by forming a plurality of individual perimeter pile anchors in a large generally circular pattern to form a perimeter wall. The individual pile anchors are contiguous, each pile overlapping the adjacent piles on either side. The overlapping pile anchors form an arch such that compression and friction between the pile anchors resist soil caving and sloughing pressure when soil inside the perimeter wall is excavated, enabling the perimeter pile foundation to be effectively constructed in weak saturated soils and/or cohesionless sands that will not allow conventional concrete foundation excavations. A concrete foundation ring is formed inside the pile perimeter wall to support a tall and/or heavy tower or other structure subject to high upset forces.

Подробнее
Номер записи: 10
28-05-2020 дата публикации

Retrofit reinforcing structure addition and method for wind turbine concrete gravity spread foundations and the like

Номер: US20200165792A1
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

The retrofit structure addition includes a collar formed around the pedestal of the spread foundation. The collar is formed by a shape sustaining member, such as a CMP, placed around the pedestal to define an annular ring between the CMP and the pedestal that is filled with cementitious material. Radial bolts extend horizontally through the collar and into the side of the pedestal. Soil and/or rock anchor bolts extend vertically through the collar, the spread portion of the foundation and into the underlying soil and/or rock substrate. The radial and anchor bolts are post-tensioned to ensure that the cementitious material of the collar remains in compression and the bolts are always in static tension, strengthening the original gravity spread foundation and extending the fatigue life thereof.

Подробнее
Номер записи: 11
06-08-2020 дата публикации

REINFORCEMENT STRUCTURES FOR TENSIONLESS CONCRETE PIER FOUNDATIONS AND METHODS OF CONSTRUCTING THE SAME

Номер: US20200248425A1
Автор: HENDERSON Allan P.
Принадлежит: Terracon Consultants, Inc.

A reinforced tensionless concrete pier foundation for supporting a tower and a method of constructing the same is provided, the foundation having an outer CMP and an inner CMP with an annular space therebetween in which a plurality of sleeved tower anchor bolts are embedded, and the pier foundation including at least one reinforcement structure that at least partly encircles the outer CMP to provide one or more of increased lateral stiffness, increased shear resistance and overturning (upset) moment capacity, reduced bending, displacement, and deflection of the top of the pier, and improved conditioning, containment, skin friction and lateral bearing capacity of the surrounding soil and/or rock substrate that supports the tensionless pier. 1. A tensionless concrete foundation for supporting a tower-comprising a concrete pier in an excavation , said concrete pier including an outer pier CMP and an inner pier CMP having a smaller diameter than the outer pier CMP to define an annular space between the inner and outer pier CMPs when the CMPs are placed within the excavation , a plurality of sleeved tower anchor bolts embedded in said annular space and secured at their lower ends to an embedment ring adjacent a bottom of the concrete pier , the anchor bolts extending upwardly beyond an upper surface of the foundation , said upper surface including a tower base flange support surface configured to support a tower having a tower base flange that is secured against the support surface by the tower anchor bolts which are post-tensioned to keep the foundation under compression , and a reinforcement structure at least , partly encircling the outer pier CMP , said reinforcement structure providing increased lateral stiffness , overturning resistance and lateral bearing capacity to the concrete pier.2. The tensionless concrete pier foundation as set forth in claim 1 , wherein the reinforcement structure includes a structural post-tensioned collar having an outer perimeter ...

Подробнее
Номер записи: 12
19-11-2015 дата публикации

CEMENTITIOUS FOUNDATION CAP WITH POST-TENSIONED HELICAL ANCHORS AND METHOD OF MAKING THE SAME

Номер: US20150330052A1
Автор: HENDERSON Allan P.
Принадлежит:

A post-tensioned concrete cap foundation has helical anchors with pipes having several helical discs welded around the pipe perimeter to spin drill deep into subsurface soils or other soft materials with holes in the pipe for high pressure-grouting in place. The helical anchor pipes include a tensioning element for pulling and post-tensioning the helical anchor. The helical anchors are tension anchors which can be converted to compression anchors. The helical anchors in tension serve to pull the foundation cap down to compress the underlying soil while the compression anchors limit the maximum settlement of the concrete foundation cap. The foundation also includes perimeter-forming and interior corrugated metal pipes with upper and lower sleeved horizontally extending radial bolts that are secured to the pipes and post-tensioned to provide lateral foundation compression.

Подробнее
Номер записи: 13
06-01-2004 дата публикации

Perimeter weighted foundation for wind turbines and the like

Номер: US6672023B2
Автор: Allan P. Henderson
Принадлежит: Allan P. Henderson

A perimeter weighted foundation has a central pier pedestal and a base extending outwardly from and below the pier pedestal. The base includes an outer perimeter wall section and a radially extending, disk-shaped spread section interconnecting the bottom of the pier pedestal and the top of the perimeter wall section with the top surface of the spread section being positioned substantially below the top of the pier pedestal. The pier pedestal includes vertical post tensioned anchor bolts in accordance with U.S. Pat. Nos. 5,586,417 and 5,826,387. The spread section includes two layers of sleeved post tensioned bolts which extend through the bottom of the pier pedestal, through the spread section and into the top of the perimeter wall section to post tension the perimeter wall section, the spread section and the pier pedestal. Soil back filled onto the top of the spread section and pier pedestal and into the interior of the pedestal enables the foundation to withstand high upset forces imparted to the foundation.

Подробнее
Номер записи: 14
19-05-2009 дата публикации

Pile anchor foundation

Номер: US7533505B2
Автор: Allan P. Henderson
Принадлежит: Henderson Allan P

A circular concrete cap foundation poured in-situ within a perimeter forming corrugated metal pipe set atop or within an excavated pit and enclosing a series of circumferentially spaced pile anchors. The circular concrete cap foundation supports sets of inner and outer circumferentially spaced tower anchor bolts having their lower ends anchored to an embedded anchor ring and their upper ends projecting vertically and upwardly out the top of the circular foundation to engage the base flange of a supported tower. The pile anchors are formed with perimeter corrugated metal pipes set deep in subsurface soils with cementitious material surrounding and partially bonding to a centralized steel bolt or tendon which extends through the cap foundation. The tower anchor bolts and the pile anchor bolts are both partially encased in a PVC sleeve so that the bolts can be post-tensioned. The pile anchors are in tension only and serve to pull the cap foundation down to compress the underlying ground soils.

Подробнее
Номер записи: 15
02-01-2007 дата публикации

Method of forming a perimeter weighted foundation for wind turbines and the like

Номер: US7155875B2
Автор: Allan P. Henderson
Принадлежит: Henderson Allan P

A perimeter weighted foundation has a central pier pedestal and an enlarged base spaced outwardly and extending below the pedestal. The enlarged base includes an outer concentric perimeter wall section with a radially extending, disk-shaped spread section interconnecting the bottom of the pedestal section and the top of the perimeter wall section. The pedestal section includes vertically extending post-tensioning anchor bolts sleeved through substantially the entire height of the cylindrical pedestal in accordance with earlier U.S. Pat. Nos. 5,586,417 and 5,826,387 and the spread section includes two layers of similarly sleeved post-tensioning bolts which extend through the bottom of the pedestal section and into or through the top of the perimeter wall section, thus tying together the enlarged base to the pier pedestal. After the concrete is poured, hardened and cured, the vertical bolts of the pedestal section and the radially extending horizontal bolts in the spread section are post-tensioned to impart a heavy unit compressive loading on the concrete in the pier pedestal and enlarged base. After back filling soil onto the spread section and to the interior of the pedestal section, the foundation is able to withstand high upset forces imparted to the foundation by any large structure supported thereon.

Подробнее
Номер записи: 16
17-11-2009 дата публикации

Post-tension pile anchor foundation and method therefor

Номер: US7618217B2
Автор: Allan P. Henderson
Принадлежит: Henderson Allan P

A post-tensioned pile anchor foundation and method therefor creates a void or highly compressible region between a drilled or driven pile anchor surrounding a post-tensioned anchor bolt or tendon and the bottom of a foundation cap. The void or compressible region can be formed by compressible spacers or void forming elements placed between the top of the pile anchor and the concrete cap. As the anchor bolt or tendon is post-tensioned against the cap, the void forming element is compressed or crushed, allowing the cap to be pulled downwardly and the pile anchor to be pulled upwardly toward the cap against the resistance of the surrounding soil.

Подробнее
Номер записи: 17
15-09-2014 дата публикации

Continous strand hoop reinforcement for concrete foundations

Номер: CA2845460A1
Автор: Allan P. Henderson
Принадлежит: Individual

A post-tensioned continuous strand hoop reinforcement for concrete foundations is provided. The post-pensioned continuous strand hoop reinforcement compresses the concrete to prevent cracking and significantly reduces foundation deflection and distortion which increases rotational stiffness in anchor caps, spread foundations, and like foundation configurations.

Подробнее
Номер записи: 18
04-04-2002 дата публикации

Perimeter weighted foundation for wind turbines and the like

Номер: CA2424334A1
Автор: Allan P. Henderson
Принадлежит: Allan P. Henderson

A perimeter weighted foundation (100) has a central pier pedestal (102) and an enlarged base spaced outwardly and extending below the pedestal. The enlarged base includes an outer concentric perimeter wall section with a radially extending, disk-shaped (104) spread section interconnecting the bottom of the pedestal section and the top of the perimeter wall section. The pedestal section includes vertically extending post-tensioning anchor bolts sleeved through substantially the entire height of the cylindrical pedestal. The spread section includes two layers of similarly sleeved post-tensioning bolts which extend through the bottom of the pedestral section and into or through the top of the perimeter wall section, thus tying together the enlarged base to the pier pedestal.

Подробнее
Номер записи: 19
13-06-2002 дата публикации

Tilt-up and telescopic support tower for large structures

Номер: WO2002046552A1
Автор: Allan P Henderson
Принадлежит: Allan P Henderson

A support tower (20) for large structures such as wind turbines generators, microwave structures, high voltage transmission lines or the like, constructed of telescopic sections (30, 44, 80) with the lowermost section having an edge portion pivotally connected to a foundation (26) to enable the tower sections to be transported to the site of installation. The tower sections are assembled at the installation site in a nested relationship, each within the adjacent lower tower section. The large load is mounted on the upper end of the uppermost tower section and the nested tower sections are then tilted upwardly to a vertical position. After the tower is tilted to its vertical position and securely connected to the foundation, the telescopic tower sections are vertically extended to position the load in a vertically elevated position.

Подробнее
Номер записи: 20
15-03-2022 дата публикации

Reinforcement structures for tensionless concrete pier foundations and methods of constructing the same

Номер: US11274412B2
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A reinforced tensionless concrete pier foundation for supporting a tower and a method of constructing the same is provided, the foundation having an outer CMP and an inner CMP with an annular space therebetween in which a plurality of sleeved tower anchor bolts are embedded, and the pier foundation including at least one reinforcement structure that at least partly encircles the outer CMP to provide one or more of increased lateral stiffness, increased shear resistance and overturning (upset) moment capacity, reduced bending, displacement, and deflection of the top of the pier, and improved conditioning, containment, skin friction and lateral bearing capacity of the surrounding soil and/or rock substrate that supports the tensionless pier.

Подробнее
Номер записи: 21
30-09-2013 дата публикации

Cementitious foundation cap with post-tensioned helical anchors and method for making the same

Номер: CA3082307A1
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A method is disclosed for forming a post-tensioned concrete foundation with helical anchors and a concrete foundation cap for supporting on its upper surface a structure subject to high upset and dynamic forces. The method comprises the steps of: drilling a plurality of helical anchors to depth in a ground surface, each helical anchor including a helical anchor pipe that extends into the ground and a tensioning element atop said anchor pipe; pouring the concrete foundation cap with cementitious material over the plurality of helical anchors, said tensioning elements extending upwardly through said concrete foundation cap; allowing said cementitious material in said concrete foundation cap to cure and solidify around, without bonding to, said tensioning elements; and post tensioning the helical anchors from above the concrete foundation cap using the tensioning elements.

Подробнее
Номер записи: 22
17-08-2010 дата публикации

Tilt-up and telescopic support tower for large structures

Номер: CA2436627C
Автор: Allan P. Henderson, Robert E. Godfrey, Svi Gershony, Vaughn Johnson
Принадлежит: Z-TEK LLC

A support tower (20) for large structures such as wind turbines generators, microwave structures, high voltage transmission lines or the like, constructed of telescopic sections (30, 44, 80) with the lowermost section having an edge portion pivotally connected to a foundation (26) to enable the tower sections to be transported to the site of installation. The tower sections are assembled at the installation site in a nested relationship, each within the adjacent lower tower section. The large load is mounted on the upper end of the uppermost tower section and the nested tower sections are then tilted upwardly to a vertical position. After the tower is tilted to its vertical position and securely connected to the foundation, the telescopic tower sections are vertically extended to position the load in a vertically elevated position.

Подробнее
Номер записи: 23
25-01-2020 дата публикации

Concrete pier foundation with lateral shear reinforcing loops and methods of constructing the same

Номер: CA3050661A1
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A concrete pier foundation having a plurality of sleeved tower anchor bolts embedded therein and a spiral loop encasement providing lateral shear reinforcement is provided. The spiral loop encasement surrounds at least a lower portion of the concrete pier and is formed by hoop steel wrapped around the perimeter of the tower anchor bolt cage. In proper soils or rock the spiral loop encasement can eliminate the need for corrugated metal pipes, reducing the cost and complexity of construction.

Подробнее
Номер записи: 24
24-05-2022 дата публикации

Cementitious foundation cap with post-tensioned helical anchors and method for making the same

Номер: CA3082307C
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A method is disclosed for forming a post-tensioned concrete foundation with helical anchors and a concrete foundation cap for supporting on its upper surface a structure subject to high upset and dynamic forces. The method comprises the steps of: drilling a plurality of helical anchors to depth in a ground surface, each helical anchor including a helical anchor pipe that extends into the ground and a tensioning element atop said anchor pipe; pouring the concrete foundation cap with cementitious material over the plurality of helical anchors, said tensioning elements extending upwardly through said concrete foundation cap; allowing said cementitious material in said concrete foundation cap to cure and solidify around, without bonding to, said tensioning elements; and post tensioning the helical anchors from above the concrete foundation cap using the tensioning elements.

Подробнее
Номер записи: 25
11-09-2001 дата публикации

Tensionless pier foundation

Номер: CA2205502C
Автор: Allan P. Henderson, Miller B. Patrick
Принадлежит: Individual

A hollow, cylindrical pier foundation (10) is constructed of cementitious material (68) poured in situ between inner (12) and outer (14) corrugated metal pipe shells. The foundation is formed within a ground pit (16) and externally and internally back filled. The lower end of the foundation has a circumferential ring (22) fully embedded therein and sets of inner (20) and outer (21) circumferentially spaced bolts have their lower ends anchored to the anchor ring, their upper ends projecting up outwardly of the top of the foundation and a majority of the midportions thereof free of connection with the cementitious material of which the foundation is constructed. The base flange (80) of a tubular tower (74) is positioned downwardly upon the upper end of the foundation with the upper ends of the inner and outer sets of bol ts projecting upwardly through holes (76, 78) provided therefor in the base flange.

Подробнее
Номер записи: 26
13-06-2002 дата публикации

Tilt-up and telescopic support tower for large structures

Номер: CA2436627A1
Автор: Allan P. Henderson, Robert E. Godfrey, Svi Gershony, Vaughn Johnson
Принадлежит: Allan P. Henderson, Robert E. Godfrey, Svi Gershony, Vaughn Johnson, Z-Tek, Llc

A support tower (20) for large structures such as wind turbines generators, microwave structures, high voltage transmission lines or the like, constructed of telescopic sections (30, 44, 80) with the lowermost section having an edge portion pivotally connected to a foundation (26) to enable the tower sections to be transported to the site of installation. The tower sections are assembled at the installation site in a nested relationship, each within the adjacent lower tower section. The large load is mounted on the upper end of the uppermost tower section and the nested tower sections are then tilted upwardly to a vertical position. After the tower is tilted to its vertical position and securely connected to the foundation, the telescopic tower sections are vertically extended to position the load in a vertically elevated position.

Подробнее
Номер записи: 27
04-08-2015 дата публикации

Cementitious foundation cap with post-tensioned helical anchors and method of making the same

Номер: US9096986B2
Автор: Allan P. Henderson
Принадлежит: Allan P. Henderson

A post-tensioned concrete cap foundation has helical anchors with pipes having several helical discs welded around the pipe perimeter to spin drill deep into subsurface soils or other soft materials with holes in the pipe for high pressure-grouting in place. The helical anchor pipes include a tensioning element for pulling and post-tensioning the helical anchor. The helical anchors are tension anchors which can be converted to compression anchors. The helical anchors in tension serve to pull the foundation cap down to compress the underlying soil while the compression anchors limit the maximum settlement of the concrete foundation cap. The foundation also includes perimeter-forming and interior corrugated metal pipes with upper and lower sleeved horizontally extending radial bolts that are secured to the pipes and post-tensioned to provide lateral foundation compression.

Подробнее
Номер записи: 28
31-07-2020 дата публикации

Reinforcement structures for tensionless concrete pier foundations and methods of constructing the same

Номер: CA3050664A1
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A reinforced tensionless concrete pier foundation for supporting a tower and a method of constructing the same is provided, the foundation having an outer CMP and an inner CMP with an annular space therebetween in which a plurality of sleeved tower anchor bolts are embedded, and the pier foundation including at least one reinforcement structure that at least partly encircles the outer CMP to provide one or more of increased lateral stiffness, increased shear resistance and overturning (upset) moment capacity, reduced bending, displacement, and deflection of the top of the pier, and improved conditioning, containment, skin friction and lateral bearing capacity of the surrounding soil and/or rock substrate that supports the tensionless pier.

Подробнее
Номер записи: 29
30-01-2024 дата публикации

Reinforcement structures for tensionless concrete pier foundations and methods of constructing the same

Номер: US11885092B2
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A reinforced tensionless concrete pier foundation for supporting a tower and a method of constructing the same is provided, the foundation having an outer CMP and an inner CMP with an annular space therebetween in which a plurality of sleeved tower anchor bolts are embedded, and the pier foundation including at least one reinforcement structure that at least partly encircles the outer CMP to provide one or more of increased lateral stiffness, increased shear resistance and overturning (upset) moment capacity, reduced bending, displacement, and deflection of the top of the pier, and improved conditioning, containment, skin friction and lateral bearing capacity of the surrounding soil and/or rock substrate that supports the tensionless pier.

Подробнее
Номер записи: 30
14-11-2023 дата публикации

Retrofit reinforcing structure addition and method for wind turbine concrete gravity spread foundations and the like

Номер: US11814808B2
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A retrofit reinforcing structure addition and method for an existing gravity spread foundation for a wind turbine or the like having a central pedestal and a spread section is provided. The retrofit structure addition includes a collar formed around the pedestal of the spread foundation. The collar is formed by a shape sustaining member, such as a CMP, placed around the pedestal to define an annular ring between the CMP and the pedestal that is filled with cementitious material. Radial bolts extend horizontally through the collar and into the side of the pedestal. Soil and/or rock anchor bolts extend vertically through the collar, the spread portion of the foundation and into the underlying soil and/or rock substrate. The radial and anchor bolts are post-tensioned to ensure that the cementitious material of the collar remains in compression and the bolts are always in static tension, strengthening the original gravity spread foundation and extending the fatigue life thereof.

Подробнее
Номер записи: 31
07-05-2024 дата публикации

Methods for constructing tensionless concrete pier foundations and foundations constructed thereby

Номер: US11976431B2
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A tensionless concrete pier foundation for supporting a tower and a method of constructing the same is provided, the foundation having an outer CMP and an inner CMP with an annular space therebetween in which a plurality of sleeved tower anchor bolts are embedded, at least the outer CMP having an upper edge that is flush with the top of the foundation after the tower has been installed. A method of plumbing a tower anchor bolt cage using a bolt alignment ring is also provided that includes coupling the upper ends of the CMPs together with lateral spacing bolts that extend across the annular space. The tower anchor bolt cage is suspended from the lateral spacing bolts by the bolt alignment ring, and the lateral spacing bolts are shimmed on a low side as necessary for leveling the alignment ring and plumbing the bolt cage, before concrete pour.

Подробнее
Номер записи: 32
31-07-2020 дата публикации

Reinforcement structures for tensionless concrete pier foundations and methods of constructing the same

Номер: CA3237329A1
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A method of pressure grouting for soil stabilization around an existing tensionless concrete pier foundation to increase a lateral bearing capacity of surrounding soil and increase skin friction around a perimeter of the pier foundation, the method comprising: driving a grout emitting pipe to a desired soil depth adjacent a base of the pier foundation; and pressure grouting to several hundred psi at 5 ft intervals as the grout emitting pipe is lifted upwardly.

Подробнее
Номер записи: 33
07-04-2016 дата публикации

Retrofit reinforcing structure addition and method for wind turbine concrete gravity spread foundations and the like

Номер: CA3019073A1
Автор: Allan P. Henderson
Принадлежит: Individual

A retrofit reinforcing structure addition and method for an existing gravity spread foundation for a wind turbine or the like having a central pedestal and a spread section is provided. The retrofit structure addition includes a collar formed around the pedestal of the spread foundation. The collar is formed by a shape sustaining member, such as a CMP, placed around the pedestal to define an annular ring between the CMP and the pedestal that is filled with cementitious material. Radial bolts extend horizontally through the collar and into the side of the pedestal. Soil and/or rock anchor bolts extend vertically through the collar, the spread portion of the foundation and into the underlying soil and/or rock substrate. The radial and anchor bolts are post-tensioned to ensure that the cementitious material of the collar remains in compression and the bolts are always in static tension, strengthening the original gravity spread foundation and extending the fatigue life thereof.

Подробнее
Номер записи: 34
10-11-2022 дата публикации

Retrofit reinforcing structure addition and method for wind turbine concrete gravity spread foundations and the like

Номер: US20220356669A1
Автор: Allan P. Henderson
Принадлежит: Terracon Consultants Inc

A retrofit reinforcing structure addition and method for an existing gravity spread foundation for a wind turbine or the like having a central pedestal and a spread section is provided. The retrofit structure addition includes a collar formed around the pedestal of the spread foundation. The collar is formed by a shape sustaining member, such as a CMP, placed around the pedestal to define an annular ring between the CMP and the pedestal that is filled with cementitious material. Radial bolts extend horizontally through the collar and into the side of the pedestal. Soil and/or rock anchor bolts extend vertically through the collar, the spread portion of the foundation and into the underlying soil and/or rock substrate. The radial and anchor bolts are post-tensioned to ensure that the cementitious material of the collar remains in compression and the bolts are always in static tension, strengthening the original gravity spread foundation and extending the fatigue life thereof.

Подробнее
Номер записи: 35
30-05-1996 дата публикации

Tensionless pier foundation

Номер: WO1996016233A1
Автор: Allan P. Henderson, Miller B. Patrick
Принадлежит: Henderson Allan P, Patrick Miller B

A hollow, cylindrical pier foundation (10) is constructed of cementitious material (68) poured in situ between inner (12) and outer (14) corrugated metal pipe shells. The foundation is formed within a ground pit (16) and externally and internally back filled. The lower end of the foundation has a circumferential ring (22) fully embedded therein and sets of inner (20) and outer (21) circumferentially spaced bolts have their lower ends anchored to the anchor ring, their upper ends projecting up outwardly of the top of the foundation and a majority of the midportions thereof free of connection with the cementitious material of which the foundation is constructed. The base flange (80) of a tubular tower (74) is positioned downwardly upon the upper end of the foundation with the upper ends of the inner and outer sets of bolts projecting upwardly through holes (76, 78) provided therefor in the base flange.

Подробнее
Номер записи: 36
03-10-2024 дата публикации

Radial bolt corrugated pipe mold and assembly for cementitious foundations, and method for stabilization

Номер: US20240328109A1
Автор: Allan P. Henderson, Charles L. Purdy
Принадлежит: Individual

In concrete pier, pier with collar, and caps with helical, rock and soil anchor foundations, a corrugation filler mold is assembled onto the outer end of horizontally extending radial bolts to be post-tensioned. The filler mold receives the bolt outer end through a hole and fits into the adjacent corrugation trough on the outside surface of a corrugated metal pipe (CMP) defining an inside and/or outside surface of the pier foundation. The filler mold forms an enclosed cavity surrounding the radial bolt which can then be filled with cementitious material. When filled and cured, the filler mold and cementitious material stabilize the radial bolt in its horizontal position and the pier foundation during and after post-tensioning.

Подробнее
Номер записи: 37
10-10-2017 дата публикации

Retrofit reinforcing structure addition and method for wind turbine concrete gravity spread foundations and the like

Номер: US09783950B2
Автор: Allan P. Henderson
Принадлежит: Individual

A retrofit reinforcing structure addition and method for an existing gravity spread foundation for a wind turbine or the like having a central pedestal and a spread section is provided. The retrofit structure addition includes a collar formed around the pedestal of the spread foundation. The collar is formed by a shape sustaining member, such as a CMP, placed around the pedestal to define an annular ring between the CMP and the pedestal that is filled with cementitious material. Radial bolts extend horizontally through the collar and into the side of the pedestal. Soil and/or rock anchor bolts extend vertically through the collar, the spread portion of the foundation and into the underlying soil and/or rock substrate. The radial and anchor bolts are post-tensioned to ensure that the cementitious material of the collar remains in compression and the bolts are always in static tension, strengthening the original gravity spread foundation and extending the fatigue life thereof.

Подробнее
Номер записи: 38
29-08-2017 дата публикации

Cementitious foundation cap with post-tensioned helical anchors and method of making the same

Номер: US09745712B2
Автор: Allan P. Henderson
Принадлежит: Individual

A post-tensioned concrete cap foundation has helical anchors with pipes having several helical discs welded around the pipe perimeter to spin drill deep into subsurface soils or other soft materials with holes in the pipe for high pressure-grouting in place. The helical anchor pipes include a tensioning element for pulling and post-tensioning the helical anchor. The helical anchors are tension anchors which can be converted to compression anchors. The helical anchors in tension serve to pull the foundation cap down to compress the underlying soil while the compression anchors limit the maximum settlement of the concrete foundation cap. The foundation also includes perimeter-forming and interior corrugated metal pipes with upper and lower sleeved horizontally extending radial bolts that are secured to the pipes and post-tensioned to provide lateral foundation compression.

Подробнее
Номер записи: 39
22-08-2017 дата публикации

Perimeter pile anchor foundation

Номер: US09739027B2
Автор: Allan P. Henderson
Принадлежит: Individual

A perimeter pile anchor foundation is built by forming a plurality of individual perimeter pile anchors in a large generally circular pattern to form a perimeter wall. The individual pile anchors are contiguous, each pile overlapping the adjacent piles on either side. The overlapping pile anchors form an arch such that compression and friction between the pile anchors resist soil caving and sloughing pressure when soil inside the perimeter wall is excavated, enabling the perimeter pile foundation to be effectively constructed in weak saturated soils and/or cohesionless sands that will not allow conventional concrete foundation excavations. A concrete foundation ring is formed inside the pile perimeter wall to support a tall and/or heavy tower or other structure subject to high upset forces.

Подробнее
Номер записи: 40
01-11-2016 дата публикации

Continuous strand hoop reinforcement for concrete foundations

Номер: US09481973B2
Автор: Allan P. Henderson
Принадлежит: Individual

A post-tensioned continuous strand hoop reinforcement for concrete foundations is provided. The post-tensioned continuous strand hoop reinforcement compresses the concrete to prevent cracking and significantly reduces foundation deflection and distortion which increases rotational stiffness in anchor caps, spread foundations, and like foundation configurations.

Подробнее
Номер записи: 41
17-05-2016 дата публикации

Perimeter pile anchor foundation

Номер: US09340947B2
Автор: Allan P. Henderson
Принадлежит: Individual

A perimeter pile anchor foundation is built by forming a plurality of individual perimeter pile anchors in a large generally circular pattern to form a perimeter wall. The individual pile anchors are contiguous, each pile overlapping the adjacent piles on either side. The overlapping pile anchors form an arch such that compression and friction between the pile anchors resist soil caving and sloughing pressure when soil inside the perimeter wall is excavated, enabling the perimeter pile foundation to be effectively constructed in weak saturated soils and/or cohesionless sands that will not allow conventional concrete foundation excavations. A concrete foundation ring is formed inside the pile perimeter wall to support a tall and/or heavy tower or other structure subject to high upset forces.

Подробнее
Номер записи: 42