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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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2. Отображено 2.
01-08-2023 дата публикации

Self-heat-preservation hidden beam floor system of assembly type structure

Номер: CN116517171A
Автор: QIAN YONG, QIAN KUN, ZHENG FUJIN, CHEN XIONG, ZHENG YAJIE
Принадлежит:

The invention provides an assembly type structure self-heat-preservation hidden beam floor system which comprises an assembly type floor unit formed by laying a plurality of profile steel prestressed concrete composite flat beams and a plurality of bidirectional prestressed prefabricated hollow slabs, transverse steel cables are connected with the assembly type floor unit in a left-right mode, and longitudinal steel cables are connected with the assembly type floor unit in a front-back mode. Stand columns are fixedly connected between the adjacent assembly type floor units, and rectangular wallboard filling cavities of the left stand columns and the right stand columns between the upper assembly type floor units and the lower assembly type floor units which are adjacent are filled with the wallboards. Firstly, the stand columns are vertically fixed, then the wallboards are fixed between the left stand column and the right stand column, then the profile steel prestressed concrete composite ...

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Номер записи: 1
02-05-2023 дата публикации

Manufacturing method and application of bidirectional prestressed prefabricated hollow slab

Номер: CN116038897A
Автор: LIU WEI, ZHENG YAJIE, ZHENG FUJIN, LIU ZIXUAN, YUAN XIUXIU, HUANG QINGCHENG, FAN GUOHAO, LIN CHENG
Принадлежит:

The invention is applicable to the field of constructional engineering, and provides a manufacturing method of a bidirectional prestressed prefabricated hollow slab, which comprises the following steps: step 1, making a rectangular shaping mold with the length-width ratio b of 2lt; 1/blt; 3, height hgt; the thickness is 10 cm; 2, longitudinal slab bottom longitudinal bars and prestress eliminating steel wires are arranged in the shaping mold, transverse slab bottom distribution bars are arranged in the shaping mold, flame-retardant foam with the outer diameter being D and consistent with the diameter and length of the full-length hollow cavity is arranged in the middle of the shaping mold to serve as a hollow slab core mold, and U-shaped fixing pieces are used for fixing the two ends of the flame-retardant foam; 3, the prefabricated hidden beam component is arranged on the transverse part of the hollow floor slab; 4, water stop steel plates are welded to the ends of the hidden beam longitudinal ...

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Номер записи: 2