Building reinforced structure and reinforcing method

Abstract

The invention discloses a building reinforced structure and a reinforcing method. The reinforced structure comprises a plurality of steel plates and a stressed rib net, the steel plates are arranged on the surface of a building to be reinforced, the stressed rib net is arranged on the periphery of the building to be reinforced in a surrounding and tension manner, interface agent layers are disposed on the surface of the building to be reinforced and surfaces of the steel plates, high-performance polymer mortar adhesion layers are arranged on surfaces of the interface agent layers, and the stressed rib net is fixed onto the outer surfaces of the steel plates by steel battens and bolts mounted in the steel plates and the steel battens. The reinforcing method of the building reinforced structure includes steps of firstly, removing load, flattening surfaces and closing cracks; secondly, grinding, cleaning and drying the surfaces; thirdly, prefabricating the steel plates, the steel battens and the stressed rib nets; fourthly, adhering the steel plates; fifthly, fixing the stressed rib net; sixthly, pouring water and wetting; seventhly, spraying the interface agent layers and the high-performance polymer mortar layers; and eighthly, maintaining. The building reinforced structure and the reinforcing method has the advantages that the building reinforced structure is reasonable in design, convenient in construction, fine in structural bearing capacity, ductility, rigidity and corrosion resistance and low in engineering cost, and the building to be reinforced is not damaged.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a building reinforcement structure and a reinforcement method for repairing and strengthening a building with a concrete structure or a masonry structure. Background technique [0002] With the development of my country's economic construction, civil engineering such as bridges and buildings has been developed rapidly. Due to the change of building use, the increase of bridge load level, earthquake damage, explosion damage and other reasons, the maintenance and reinforcement of structures are caused. At present, my country's structural reinforcement and transformation industry has become one of the main industries in the field of civil engineering. At present, the main reinforcement technologies in this industry include FRP (carbon fiber cloth, carbon fiber board, etc.) reinforcement technology, reinforced high-performance mortar reinforcement techno...

AI Technical Summary

Problems solved by technology

However, this reinforcement technology also has the following disadvantages: this method needs to fix the stress tendons through expansion bolts, shear pins, etc., and provide shear bond strength, the construction is more troublesome and causes some damage to the original structure; the reinforcement layer and the original structure Bonding and peeling failure occurs in the transaction between the two, and the strength of the reinforcement material is not easy to be fully utilized; it is difficult to meet the requirements of high rigidity and ductility of the structure

However, this method requires a large amount of on-site wet work and a long maintenance time. The thickened part increases the self-weight and dead-load bending moment of the bridge. The bearing capacity is limited by the original concrete strength in the compression zone and affects the structural headroom. Great impact on the space used by the original structure

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