Inverted steel bar truss concrete laminated board and construction method thereof

Abstract

The invention discloses an inverted steel bar truss concrete laminated board and a construction method thereof. The laminated board is composed of a reinforced concrete precast slab, an inverted steelbar truss and a post-cast reinforced concrete laminated layer. The reinforced concrete precast slab comprises precast slab concrete and precast slab steel bars. The inverted steel bar truss is formedby welding three straight ribs and two curved ribs. The three straight ribs are placed in parallel and respectively located at the three apexes of the inverted triangle. The two curved ribs are welded with the three straight ribs from the sides respectively to manufacture the reinforced concrete precast slab and the inverted steel bar truss integrally, and the two straight ribs on the upper layerare buried in the precast slab concrete. The post-cast reinforced concrete laminated layer includes laminated layer concrete and laminated layer steel bars. The inverted steel bar truss reduces a complex support system at the precast slab bottom during construction, and saves cost. At the same time, the inverted steel bar truss can effectively improve the rigidity and the bearing capacity of thestructure in the construction stage of the inverted steel bar truss, and the deflection and the cracking possibility of the precast slab in the construction stage are greatly reduced.

Description

technical field [0001] The invention relates to the field of construction floor slab construction, more precisely, an inverted reinforced truss concrete composite slab and a construction method thereof. technical background [0002] The reinforced concrete laminated slab is a combination of prefabrication and cast-in-place technology, and a layer of concrete is poured on the prefabricated components to form an assembled integral structure. Reinforced concrete laminated slabs have the advantages of saving scaffolding and formwork, fast construction, and good integrity. With the continuous advancement of my country's housing industrialization, the application of laminated slabs is increasing. [0003] According to the mechanical performance, the concrete laminated slab structure can be divided into two types. If the prefabricated slab is hoisted in place during construction, and supports are set under it, the load during the construction stage will be borne by the supports, an...

AI Technical Summary

Problems solved by technology

The steel truss can increase the rigidity of the laminated slab and reduce the deflection during the construction process. However, more steel bars are required to make the web bars of the steel bar truss. The actual situation may not require so many web bars, resulting in waste of steel bars.

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