A superimposed composite shear wall with two-stage stress characteristics

Abstract

The invention relates to an overlapped combined shear wall with a double-phase stress characteristic, and belongs to the field of structural engineering. The combined shear wall comprises prefabricated steel tube concrete posts, low-yield-point steel plate coupling beams, double angle, framed girder H-shaped steel, a prefabricated hollow reinforced concrete shear wallboard, high-strength bolts, a concrete post-cast strip, framed girder stiffening ribs, T-shaped end plates and plastic films. The prefabricated steel tube concrete posts are connected with the framed girder H-shaped steel through the high-strength bolts; the double angle is welded to the prefabricated steel tube concrete posts; the low-yield-point steel plate coupling beams are inserted into the double angle and wrapped with the plastic films; and concrete is poured after the overall structure is mounted to form the concrete post-cast strip. According to the overlapped combined shell wall with the double-phase stress characteristic, the bearing capacity is high, the advantage of rapid assembling construction and good fire resistance are achieved, and application prospects in a high-rise building structure system are broad.

Description

technical field [0001] The invention relates to the field of structural engineering, in particular to the field of anti-seismic structural systems. Background technique [0002] Composite steel-concrete composite shear wall is a new type of composite shear wall structure developed on the basis of traditional steel-reinforced concrete shear wall. In recent years, there have been a large number of research results and a small number of engineering applications. Due to its advantages of high bearing capacity, high rigidity, and equal bending resistance under positive and negative bending moments, steel concrete is widely used in long-span frame beams in high-rise building structures. In the existing literature, the structural form of the superimposed steel-concrete composite shear wall has not yet been seen. Therefore, a kind of superimposed composite shear wall with two-stage stress characteristics proposed by the present invention is a new type. The superimposed steel-concre...

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Problems solved by technology

In the existing literature, the structural form of the superimposed steel-concrete composite shear wall has not yet been seen. Therefore, a kind of superimposed composite shear wall with two-stage stress characteristics proposed by the present invention is a new type. The superimposed steel-concrete composite shear wall can form a two-stage stress system: under the action of small earthquakes and moderate earthquakes, the prefabricated hollow reinforced concrete shear wall panels can resist seismic loads, and the low-yield point steel plates can pass through rare earthquakes. Yield Energy Dissipation of Coupling Beam

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