Spatial structured building cover

Abstract

Disclosed is a building slab of spatial structure, which comprises a reinforced-bar concrete upper slab (1), a reinforced-bar concrete concealed rib (2), and shuttering members (3), the reinforced-bar concealed rib (2) is arranged between the adjacent shuttering members (3), the upper slab (1) is positioned above the reinforced-bar concealed rib (2) and the shuttering member (3), the shuttering members (3) comprise an upper bottom (4), side panels (5), a lower bottom (6), and a reinforcement member (7), the upper bottom (4) and the side panel (5) enclose a formwork (9), the formwork (9) and the lower bottom (6) interconnect into a shuttering member with a closed cavity (8), the reinforcement member (7) is arranged in the cavity (8), characterized in that the reinforcement member (7) is provided with at least one hollow aperture (10) opening outward on the upper bottom (4) or / and side panels (5), the reinforcement member (7) with a hollow aperture (10) is a cross shape, * shape or # shape reinforcing rib, at least two hollow apertures (10) are parallel, the cast-in-situ concrete enters the hollow aperture (10) to form an integrity with the shuttering member (3).

Description

[0001] This application is a divisional application of an invention patent application with an application date of March 4, 2003, an application number of 03118131.7, and a title of "a cast-in-place reinforced concrete hollow floor". (1) Technical field [0002] The invention relates to a space structure floor. (2) Background technology [0003] Reinforced concrete floors in construction projects have structural forms such as prefabricated perforated panels or solid roof panels and densely ribbed floors. Prefabricated perforated panels and solid roof panels are heavy in weight, cumbersome in construction, labor-intensive, high in cost, and limited in application. For densely ribbed floor slabs, the detachable all-plastic formwork is usually used for concrete pouring, and the formwork is removed after the concrete is solidified. Although the floor structure formed in this way can reduce its own weight, it also has the following disadvantages: 1. 1. After removing the formwor...

AI Technical Summary

Problems solved by technology

Prefabricated perforated panels and solid roof panels are heavy in weight, cumbersome in construction, labor-intensive, high in cost, and limited in application

For densely ribbed floor slabs, the detachable all-plastic formwork is usually used for concrete pouring, and the formwork is removed after the concrete is solidified. Although the floor structure formed in this way can reduce its own weight, it also has the following disadvantages: 1. 1. After removing the formwork, the forming performance of the floor slab will be affected. For example, the upper part of the floor slab is prone to cracks, and the lower part of the slab is not a complete plane, and the integrity is poor; ; 3. The cost of the project is high. Although the formwork is removed and used for turnover, the depreciation fee for each piece is more than 120 yuan each time, and it can only be used 4-6 times; 4. The indoor roof needs to be suspended, plastered, etc. larger

However, after the use of such formwork components, cracks between the cast-in-place concrete hidden ribs and formwork components are prone to appear, and at the same time, the reinforcing ribs cannot participate in the force transmission well.

Images