Welding type slab crack joint for precast concrete floor system

Abstract

The invention discloses a welding type slab crack joint for a precast concrete floor system used in a building. The welding type slab crack joint comprises an X-shaped connection piece, a cover slab type connection piece, a support plate side overhanging platform and a supported plate side overhanging platform, wherein the X-shaped connection piece consists of anchor bars, panels and panel strips; the cover slab type connection piece consists of reinforcing steels arranged at the bottom of a slab, an embedded steel plate and a cover plate; the upper ends of the support plate and supported plate sides are provided with metal embedded pieces which consist of the anchor bars and the panels; the panels of the support plate is fixedly connected with the panels of the supported plate by the panel strips to form the X-shaped connection piece; the lower ends of the support plate and the supported plate sides are embedded with metal plates which are welded with the reinforcing steels at the bottom of a precast slab; the embedded metal plates of the support plate and the supported plate are fixedly connected by a metal cover plate to form a cover plate type connection piece; and after beingoverlapped with each other, the support plate side overhanging platform and the supported plate side overhanging platform are fixedly connected by the X-shaped connection piece at the top of the slaband the cover plate type connection piece at the bottom of the slab.

Description

technical field [0001] The invention relates to the field of design and construction of prefabricated floor slab joint joints, in particular to a prefabricated concrete floor welded slab joint joint. Background technique [0002] At present, the prefabricated concrete floor system mainly includes the assembled integral floor system and the composite floor system, that is, a prefabricated floor structure in which steel mesh is laid on the prefabricated slab and concrete is poured afterward, all of which belong to the "wet" floor system. . The prefabricated slabs in the assembled integral floor are mostly prefabricated prestressed slabs; the common prefabricated slabs in the composite floor are prefabricated hollow slabs, grooved slabs and sandwich slabs. The existence of post-cast concrete in the "wet" floor retains the shortcomings of cast-in-place concrete floors, requires a lot of wet work and on-site work, requires a certain amount of formwork and supports, complex opera...

AI Technical Summary

Problems solved by technology

Although this method has the characteristics of saving the amount of support and formwork, and the rigidity of the floor, but its complex process, low degree of industrialization, and large self-weight lead to a large earthquake effect, which is unfavorable to the cost of the structure

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