Integral joint type reinforced concrete laminated slab and construction method

Abstract

The invention provides an integral joint type reinforced concrete laminated slab and a construction method. The integral joint type reinforced concrete laminated slab comprises adjustable double supports used for supporting a laminated prefabricated slab and a slab wall joint formwork system of the laminated prefabricated slab and an existing unreinforced side wall. The plate seam joint formwork system is used for superposing the prefabricated plates; the plate beam joint formwork system is used for superposing the prefabricated plates and the middle cast-in-place beams; according to the integral joint type reinforced concrete laminated slab, when a prefabricated laminated slab is manufactured, the integral lifting rib plates are used for replacing traditional truss steel bars, the lifting safety and stability are guaranteed, meanwhile, the perforated angle steel is pre-buried in the edge of the joint, a row of short bolts and a row of long bolts are embedded in the edge of the joint and are arranged in a staggered mode, and the overall joint type reinforced concrete laminated slab is formed. Under the condition that a prefabricated slab is not perforated, rapid installation of a joint formwork system can be achieved at the same time, meanwhile, the problems of slurry leakage, formwork expansion and the like during concrete vibrating and pouring are avoided, and the construction quality and attractiveness of post-cast strip concrete at the joint are improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an integral joint type reinforced concrete laminated slab and a construction method. Background technique [0002] Based on the fact that in the modern construction industry, the use of steel, aluminum, and wooden formwork consumes too much material, manpower, man-hours, and pollution to the environment, a new type of environmentally friendly board - laminated board has appeared on the market. With the development of civil buildings, higher requirements are put forward for the diversification of architectural design. The plane size of the laminated board is flexible, which is convenient for opening holes on the board, and can adapt to the requirements of building bays, variable depths and openings, and has good building functions. . Therefore, concrete prefabricated laminated slabs are more and more widely used in foundations, cast-in-place roofs, structural column...

AI Technical Summary

Problems solved by technology

During the construction of the traditional laminated slab joint post-pouring belt, formwork support is required for the spliced ​​position of the laminated slab, and independent support rods and supporting wooden squares are also used. However, this traditional support is not stable enough, which may easily lead to mold expansion and wrong platform in concrete pouring and other defects

At present, there are many technologies that have improved the traditional post-casting belt formwork method, for example: CN202010294467.7 prefabricated building laminated slab seam casting body, pouring formwork and its construction method and CN201920639017.X an assembly-type free formwork The joint structure of laminated slabs, but these two technologies need to open holes in the prefabricated slab, which loses its integrity, and there are no water-stop measures at the junction of the hoisting casting formwork and the horizontal steel plate and the prefabricated slab. It is easy to cause grout leakage; and CN201920028095.6 is a two-way laminated slab integral joint post-cast belt mold hanging device. After this technology removes the mold, it will leave a missing corner of the sponge strip, which will seriously affect the aesthetics of the overall appearance

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