Floor slab reinforcement and reconstruction method by additionally arranging steel secondary beams

Abstract

Provided is a floor slab reinforcement and reconstruction method by additionally arranging steel secondary beams. The floor slab reinforcement and reconstruction method includes the following steps that 1, the secondary beams are positioned, wherein the additionally arranged steel secondary beams are positioned; 2, interface chipping is conducted, wherein the contact faces between the additionallyarranged steel secondary beams and floor slabs and the contact faces between the additionally arranged steel secondary beams and frame beams are subjected to chipping and cleaned up; 3, the additionally arranged steel secondary beams are prepared, wherein each additionally arranged steel secondary beam is split into a beam body and two end plates to be prepared; 4, positioning and drilling are conducted, wherein the positions of end plate expansion bolt holes are marked on the corresponding positions of the frame beams; 5, binding is reinforced, wherein structural adhesive doped with cement is evenly laid on the flanges of the beam bodies and the flanges of the end plates; 6, the end plates are mounted, wherein the end plates of each additionally arranged steel secondary beam are mountedon the frame beams at the opposite sides through the connection bolts respectively; 7, the beam bodies are mounted, wherein the two ends of each beam body is fixedly connected with the two corresponding end plates through connection bolts respectively. The floor slab reinforcement and reconstruction method by additionally arranging the steel secondary beams is simple in technology, short in construction period and low in construction cost, can effectively improve the bearing capacity of the floor slabs and can rapidly reinforce and reconstruct deformed floor slabs.

Description

technical field [0001] The invention belongs to the technical field of structure construction, and in particular relates to a method for strengthening and reforming a floor slab by adding steel secondary beams. Background technique [0002] During the construction and use of reinforced concrete structures, problems such as insufficient bearing capacity, cracking, deflection, and deformation caused by excessively large spans of reinforced concrete slabs will inevitably occur during design, construction, or use, resulting in structural failures. Decreased rigidity and stability will affect the normal use of the floor in mild cases, and in serious cases will cause the floor to lose its function, be damaged or even collapse, causing safety accidents. [0003] In particular, due to the large span and thin thickness of some floor slabs, deformation such as cracking and bending occurs in the floor slabs, which seriously affects the normal use of the floor slabs. Similarly, the cha...

AI Technical Summary

Problems solved by technology

Removing the original floor and reinstalling a new floor at the original location has the problems of long construction period and high cost

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