A built-in segmented steel plate-high-strength concrete composite shear wall and its construction method

Abstract

The invention belongs to the technical field of structure engineering and relates to a high-strength concrete composite shear wall with built-in segmented steel plates and a construction method for the same. The invention provides the high-strength concrete composite shear wall with the built-in segmented steel plates and further provides the building and construction method for the shear wall. The composite shear wall and the construction method for the same provided by the invention are characterized in that through segmented layout of the steel plate, concrete pouring and binding bar layout become convenient; a cooperative working ability of the steel plates and concrete is enhanced; bearing force is ensured; and deformability and an energy-dissipation capability of the composite shear wall can also be enhanced. In comparison with a composite shear wall covered by steel plates, the composite shear wall provided by the invention has higher resistance to high temperatures and can show better performance when a fire disaster takes place. Meanwhile, in comparison with a concrete composite shear wall with a whole steel plate, the shear wall provided by the invention has the advantages that conversion and transition among layers can be implemented through reduction of the quantity of the segmented steel plates; inter-layer rigidity transition becomes gentler; and the structure is also simpler.

Description

technical field [0001] The invention belongs to the technical field of structural engineering, and relates to a built-in segmented steel plate-high-strength concrete composite shear wall and a construction method thereof. Background technique [0002] With the development and progress of structural design level and construction technology, the height records of high-rise buildings are constantly being refreshed, and the requirements for the lateral force resistance of building structures are also getting higher and higher. As an important anti-lateral component, shear wall is widely used in high-rise and super high-rise buildings. [0003] Due to the high height and self-heaviness of high-rise buildings, the shear walls need to bear a considerable vertical load while bearing the horizontal load. The traditional reinforced concrete shear wall needs to increase its cross-sectional area to meet the requirements, but at the same time it will reduce the building area. The compo...

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Problems solved by technology

[0005] The traditional built-in steel plate-concrete composite shear wall often uses a whole steel plate. When the steel plate is not opened, the tie bars cannot connect the distribution bars on both sides of the steel plate, which makes the connection form complicated, and sometimes even affects the overall strength of the steel plate and concrete. The opening of the steel plate increases the workload and weakens the steel plate. The tie bars may not be able to connect and distribute the bars smoothly, which brings great difficulty to the construction; the whole steel plate separates the concrete of the shear wall, which affects the concrete. Pouring reduces the overall cooperative performance of the shear wall; more importantly, the use of the whole steel plate will greatly increase the stiffness of the shear wall. During the transition between floors, the stiffness transition is not easy to control, which in turn will affect the seismic performance of the structure

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