A composite shear wall based on semi-prefabricated super-ductile reinforced concrete

Abstract

The invention relates to a superimposed shear wall based on semi-prefabricated super-tough reinforced concrete. The superimposed shear wall comprises a core wall and edge components of shear walls, wherein the core wall is formed by performing on-site pouring on common concrete; the edge components of shear walls are formed by prefabricating super-tough concrete and are arranged on both edges of the core wall, the upper ends and the lower ends of the edge components are connected through connectors to improve the tensile property and the anti-cracking property of edges and corners of the superimposed shear wall and improve the deforming capability of the superimposed shear wall. Compared with the prior art, the superimposed shear wall disclosed by the invention has the advantages that the core wall of the main body is formed by performing on-site pouring on common concrete, and both edges of the core wall are formed by prefabricating super-tough concrete, so that the toughness and the tensile property of the edges and the corners of the shear wall can be greatly improved; under the effects of horizontal external force of wind and earthquake, the superimposed shear wall disclosed by the invention greatly reduces the possibility of cracks, the degree of the damage to edges can be greatly reduced, and the possibility that buildings can be used without repair or with minor repair under the effects of strong wind and strong shock is increased.

Description

technical field [0001] The invention relates to a shear wall, in particular to a laminated shear wall based on semi-prefabricated super tough reinforced concrete. Background technique [0002] China is an earthquake-prone country, and most property losses and life safety come from structural failures. Shear wall is a good anti-seismic structural component, which can play a very good anti-seismic effect in building structures, especially high-rise structures. For example, Chinese patent CN 104018599 A discloses a shear wall structure, including a side plate, an end shear wall is arranged on the inner side of the side plate, and an inter-slit shear wall is arranged on the side of the end shear wall, and the side plate, the end shear wall The force wall and the inter-slit shear wall are connected by a connecting pipe, and one end of the connecting pipe extends outside the side plate, and the end of the connecting pipe located outside the side plate is equipped with a pipe clam...

AI Technical Summary

Problems solved by technology

At present, most reinforced concrete shear walls need to be bound on site, the formwork is set up on site, the concrete is poured and rammed, and then cured and formed. The construction quality is difficult to control, due to the quality of the tying of steel bars and poured rammed concrete, the proficiency of the construction workers and the degree of understanding of the drawings. Closely related, if the mobility of workers is too large, the level of training is not enough, the progress is too fast, the building materials are unqualified, the construction weather is bad and other factors will lead to a great reduction in the seismic performance of the final shear wall components

However, if all of them are prefabricated, the bonding strength with the foundation foundation is unreliable and the cost is too high

[0004] Furthermore, although ordinary concrete has high compressive strength, its tensile strength is small, and it is easy to be damaged by tension under the action of horizontal force. When ordinary reinforced concrete shear walls are subjected to horizontal loads, such as earthquake loads and strong wind loads , the concrete at the edge is easy to be damaged by tension. After tension cracks are generated, the corner effect area of ​​the edge member is more prone to spalling under pressure

Therefore, when subjected to a certain horizontal force-earthquake or strong wind, the traditional reinforced concrete shear wall is prone to failure and damage at the edge corner

Although the damage may not lead to the failure of the overall structure, the spalling of concrete at the edge and the buckling of the steel bars will cause difficulties in repair, which may lead to the irreparable failure of the overall structure, which may even require manpower and material resources to dismantle and rebuild.

[0005] Although there are some concretes with better tensile effects, the cost of these concretes is often high. If all of these concretes with good tensile effects are used in the construction process of the building, the construction cost will often be too high

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