Combined shear wall covered with steel plates and filled with active powder concrete

Abstract

The invention provides a combined shear wall covered with steel plates and filled with active powder concrete. The combined shear wall covered with the steel plates and filled with the active powder concrete comprises a shear wall outer covering formwork and the active powder concrete, wherein the shear wall outer covering formwork is formed by outer covering steel plate units in a surrounding mode, and the activated powder concrete is poured in the shear wall external covering formwork. The inner surface of the shear wall outer covering formwork is provided with a plurality of lines of stiffening ribs with holes. According to the combined shear wall, the space in the shear wall outer covering formwork is filled with the active powder concrete, the shear wall outer covering formwork and the active powder concrete are tightly coupled with each other and restrain each other through the stiffening ribs with the holes, and through the ultrahigh bearing capacity and the good deformation ability of the active powder concrete, the bearing capacity, the ductility and the energy dissipating capacity of the shear wall under the action of a load are greatly improved. The combined shear wall covered with the steel plates and filled with the active powder concrete is simple in structure, the outer covering steel plate units can also be used as the formwork, and therefore construction is convenient.

Description

technical field [0001] The invention belongs to the field of anti-seismic technology of steel and concrete combined structure and mixed structure, and in particular relates to a combined shear wall with active powder concrete filled with outer steel plate. Background technique [0002] The shear wall structure is a load-bearing and lateral force-resisting system that simultaneously resists vertical loads and horizontal loads. Under the earthquake, the shear wall not only bears most of the seismic shear force, but also plays an important role in dissipating seismic energy. The quality of its seismic performance plays a decisive role in the seismic performance of the entire structure. Therefore, the research on the seismic performance of shear walls is of great significance for improving the overall seismic performance of high-rise and super high-rise structures. [0003] The use of high-strength materials in engineering structures can not only meet the needs of modern engine...

AI Technical Summary

Problems solved by technology

However, after the compressive strength of concrete is increased, its tensile and shear strength are relatively low, and the ductility is reduced, thus reducing the seismic performance of concrete structures.

[0004] For the existing built-in steel plate and one-sided steel plate composite shear wall, since the concrete is located on the outside or both sides of the steel plate, the concrete slab may crack and peel off in the case of large deformation, and the restraint effect on the steel plate is greatly weakened, making the combined shear force The ductility and energy dissipation capacity of the wall under the action of a large earthquake are greatly reduced; and the cracking of concrete is difficult to control, and the exposure of cracks is unavoidable, which affects normal use and durability

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