Overlapped floor

Abstract

The invention discloses an overlapped floor which comprises a plurality of prefabricated reinforced concrete panels and T beam plates. At least one panel is spliced between every two adjacent T beam plates, and the prefabricated reinforced concrete panels and the T beam plates form the integral overlapped floor through post-poured reinforced concrete overlapped layers. According to the overlapped floor, due to the prestress technology and a bidirectional dense rib sandwiching structure form, the use amount of concrete is reduced, dead load is reduced, cost is reduced, and the rigidity and the bearing force of the overlapped floor are improved. Longitudinal rib belts and transverse rib belts are poured through lightweight aggregate structure heat insulation concrete so that the thermal bridge influences on the longitudinal rib belts and the transverse rib belts can be reduced, and meanwhile light filling blocks are matched for improving the heat insulation capability of the overlapped floor. When the overlapped floor is used, the T beam plates and the panels are arranged on a pre-pouring frame beam, and then the integral overlapped floor is formed after post-pouring of the reinforced concrete overlapped layers. The dead load is not increased, the bearing force is ensured, the shearing resisting capability of connecting points is ensured, and meanwhile heat preservation and heat insulation can be achieved; under the premise that the integrity and safety of the overlapped floor are ensured, the construction cost is reduced, and construction is simplified.

Description

technical field [0001] The invention relates to a floor slab, in particular to a laminated floor slab. Background technique [0002] As building energy-saving standards increase from 50% energy saving to 65% energy saving, the heat transfer coefficient K of the individual floor slabs in the envelope structure is also included in mandatory terms. Therefore, the energy-saving design and construction of individual floor slabs is imperative. At the same time, with the promulgation and implementation of the industry standard "Technical Regulations for Prefabricated Concrete Structures" JGJ1-2014 of the Ministry of Housing and Urban-Rural Development, the industrialization of buildings will develop rapidly. The advantages of both the integral type and the prefabricated assembly type not only save templates, reduce engineering costs, but also ensure the integrity and earthquake resistance of the floor, and are increasingly used in modern civil engineering. However, in the currentl...

AI Technical Summary

Problems solved by technology

However, in the currently commonly used assembled monolithic reinforced concrete laminated floors, the bearing capacity of the prefabricated floor is limited. When the span exceeds 3m, it is necessary to add support or thicken the floor. At the same time, the connecting nodes between the plate and the surrounding beams (or walls) The shearing is mainly borne by the post-casting layer of the laminated slab, which also makes the thickness of the post-casting laminated layer increase with the increase of the slab span, which will inevitably increase the self-weight of the laminated slab, so that in the long-span floor Apps in are affected

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