Comobined ribbed cavity member for spatial structure roof

Abstract

A combined-rib cavity member for space-structure flooring includes cavity form and structure bottom plate, which are connected into one integral whole. It is characterized by that there are at least two cavity forms arranged alternate with each other on the structure bottom plate, its side forms with the structure bottle plate at least one subrit form cavity of casti-in-situ structure, and other other sides of the cavity form forms the side fromboard of main rib or beam or wall for cast-in-situ structure. By this, the subrib of cast-in-situ structure can be formed in the sub-rib form cavity on the structure battom plate, the sub-rib participates in load bearing of structural bottom slat, cast-in-situ main rib, cast-in-sita upper slab so to a load-bearing space structure, improved mechanical property, raise integrity and anti-shock property, decrease structural wt. lower cost and make construction be convenient.

Description

(1) Technical field [0001] The invention relates to a composite rib cavity component for a space structure floor. (2) Background technology [0002] At present, most buildings with brick-concrete structure and reinforced concrete structure use prefabricated hollow slabs as floor slabs, which have the advantages of fast construction speed and low cost. However, because there is no firm connection between two adjacent prefabricated hollow slabs, only cement mortar is used to fill the joints, so the integrity is poor, which is not conducive to earthquake resistance, and cracks and water seepage often occur in the gaps. In order to solve the above problems, many buildings adopt the method of cast-in-place concrete floor slabs (solid and hollow). Although the problems of earthquake resistance and cracking have been solved, a large number of templates are used during construction, which not only increases the cost, but also slows down the construction speed and prolongs the constr...

AI Technical Summary

Problems solved by technology

At the same time, it cannot withstand the alternating load, vibration load, earthquake load and deflection deformation during normal use, and the formwork cannot be installed with hanging parts.

At present, the actual engineering application of this component has proved that there are safety hazards such as interface cracks and possible falling off between the formwork and the reinforced concrete main rib

And when it is applied to a large space structure floor, there is no secondary rib connection between the cast-in-place main ribs, so the size of the main ribs needs to be increased accordingly, or the number of main ribs increases, resulting in an increase in material consumption and cost

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