Structure and method for reinforcing concrete slab

Abstract

The invention discloses a structure for reinforcing a concrete slab. The structure comprises a slab top reinforcing layer above the concrete slab and a slab bottom reinforcing layer under the concrete slab, wherein a slab top steel bar mesh is arranged in the slab top reinforcing layer, and a slab bottom steel bar mesh is arranged in the slab bottom reinforcing layer. The invention also provides a concrete slab reinforcing method. The method comprises the steps that firstly, the slab top steel bar meshes are arranged at the top and the bottom of the concrete slab respectively, the concrete slab is provided with holes, then formwork supporting is performed, and concrete slab holes are filled with high-performance composite mortar to form the slab bottom reinforcing layer and the slab top reinforcing layer. By adopting the structure and method for reinforcing the concrete slab and an in-vitro concrete slab reinforcing mode, the damage degree of the structure of the concrete slab is smaller, and the concrete slab can be integrated with an original concrete slab and is good in overall performance.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a structure and method for reinforcing a concrete slab. Background technique [0002] Concrete slabs are important force-transmitting components in concrete structures. They are usually used to transfer floor or roof loads to concrete beams or steel beams. Collapse and other phenomena will occur, which is very dangerous. In order to avoid dangerous situations, it is necessary to reinforce the concrete slab to enhance its flexural bearing capacity. The concrete slab needs to be reinforced in the following situations: 1. The old building has reached or is on the verge of service, the strength of the material is degraded, and the flexural bearing capacity of the original concrete slab is not sufficient for the continued use of the building; 2. The original building is on fire Finally, the carbonation strength of the concrete beam material decreases, or even falls o...

AI Technical Summary

Problems solved by technology

The concrete slab needs to be reinforced in the following situations: 1. The old building has reached or is on the verge of service, the strength of the material is degraded, and the flexural bearing capacity of the original concrete slab is not sufficient for the continued use of the building; 2. The original building is on fire Finally, the carbonation strength of the concrete beam material decreases, or even falls off, which does not meet the normal use, and urgently needs bearing capacity repair or structural reinforcement; 3. The original building function changes, the floor or roof load increases, and the original concrete slab does not meet the bearing capacity requirements ; 4. The original concrete slab was demolished too early, the maintenance was not timely, and the steel bars on the top of the original slab were stepped on, etc.; 5. The height of the compression zone of the original design concrete slab was not enough, and the pipelines were arranged in a centralized way, resulting in stress concentration

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