Formwork-erecting-free self-bearing prefabricated ribbed beam concrete hollow laminated slab

Abstract

The invention discloses a formwork-erecting-free self-bearing prefabricated ribbed beam concrete hollow laminated slab. The formwork-erecting-free self-bearing prefabricated ribbed beam concrete hollow laminated slab comprises a prefabricated cement fiberboard and a plurality of prefabricated ribbed beams which are transversely arranged along a floor slab at intervals and extend in the longitudinal direction of the floor slab; a hollow body is arranged between every two adjacent prefabricated ribbed beams, and the hollow bodies are fixed to the prefabricated cement fiberboard through rivets; and the prefabricated rib beams are fixedly connected with the prefabricated cement fiberboard through connecting plates fixed at the bottom of the prefabricated rib beams, a concrete entity is pouredon the prefabricated cement fiberboard, and the hollow bodies and the prefabricated rib beams are embedded in the concrete entity. According to the formwork-erecting-free self-bearing prefabricated ribbed beam concrete hollow laminated slab, the floor slab is high in rigidity and light in weight, secondary beams can be reduced, the clearance of a building is increased, and the appearance is attractive; and experimental research and engineering practice prove that the working performance of the laminated slab is completely the same as that of an overall cast-in-place concrete slab, and the laminated slab can be used as a bidirectional slab.

Description

technical field [0001] The invention relates to a building structure, in particular to a formwork-free self-supporting prefabricated rib beam concrete hollow laminated slab. Background technique [0002] With the development of prefabricated buildings, prefabricated buildings such as steel structures and prefabricated concrete have developed rapidly. Floor slabs are an important part of building structures and occupy a large proportion in buildings. The middle part of the floor is generally suspended, so the rigidity is small, especially for long-span structures, the middle part of the floor is prone to large deflection and cracks. The cast-in-place floor slab needs to set up formwork according to the design position on the construction site, bind the steel bars, and then pour concrete. It has the characteristics of structural integrity and good rigidity. It is suitable for buildings with irregular shapes or room sizes that do not meet the modulus requirements, but on-site ...

AI Technical Summary

Problems solved by technology

The cast-in-place floor slab needs to set up formwork according to the design position on the construction site, bind the steel bars, and then pour concrete. It has the characteristics of structural integrity and good rigidity. It is suitable for buildings with irregular shapes or room sizes that do not meet the modulus requirements, but on-site construction The process is cumbersome, requires a lot of formwork, the thickness of the floor is too large, and it is heavy; the cast-in-place concrete needs maintenance, the construction period is long, the noise and dust pollution are serious, and energy such as water and electricity is wasted, which is not conducive to sustainable development and the construction of ecological civilization.

Images