Anti-falling concrete floorslab, connection joint and construction method for anti-falling concrete floorslab

Abstract

The invention discloses an anti-falling concrete floorslab, a connection joint and a construction method for the anti-falling concrete floorslab. The anti-falling concrete floorslab comprises a platebody, wherein the plate body comprises a prefabricated part; the prefabricated part comprises a concrete base plate on the lower side and a prefabricated part steel member; the prefabricated part steel member comprises a steel bar truss, a lower-layer transverse rebar and lower steel strand anchoring parts; the steel bar truss comprises a longitudinal truss upper rebar, a longitudinal truss lowerrebar and a truss web bar for connecting the longitudinal truss upper rebar with the longitudinal truss lower rebar; the lower steel strand anchoring parts are arranged in the two longitudinal sides of the concrete base plate and connected with a lower-layer mesh reinforcement; and the external end parts of the lower steel strand anchoring parts stretch out of the longitudinal end part of the concrete base plate. According to the anti-falling concrete floorslab, the steel strand anchoring parts are innovatively designed and combined in the existing structures of laminated floorslabs and foundation floorslabs to greatly improve the stress and connecting manners of the existing floorslab structures, the anti-falling concrete floorslab has the advantage of high bearing capacity, and the characteristics of facilitating floorslab construction, increasing the construction speed and improving the construction quality of the concrete slab, and the requirements for the bearing capacity of the floorslab can be met.

Description

technical field [0001] The invention belongs to concrete prefabricated components, in particular to a floor slab of prestressed concrete, a connection node and a construction method thereof. Background technique [0002] The current prefabricated truss reinforced concrete laminated floor is the mainstream technology of prefabricated floors, but when the lower steel bars are connected to the beams at the end stage of the precast concrete slabs, the method of connecting additional steel bars to the beams or walls is generally used. Although this technology is convenient for construction, it greatly reduces the effective height of the end of the plate, so that the bending resistance of the end of the plate is greatly reduced, it is easy to crack, and it may even be damaged in the node area, and there is a risk of falling. [0003] At the same time, if the existing prefabricated floor slabs have beard bars reserved at the end of the slab during transportation, it is extremely in...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of anti-falling concrete floor, connection node and construction method thereof, to solve the problem that the lower reinforcement of the prefabricated truss reinforced concrete composite floor adopts the connection mode of additional reinforcement to reduce the effective height of the end of the slab, and the end of the slab is resistant to The bending ability is reduced and it is easy to crack, and the node area is damaged and there is a technical problem of the risk of falling.

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