Replaceable steel coupling beam and double-steel-plate high-strength concrete combined coupled shear wall

Abstract

The invention provides a replaceable steel coupling beam and double-steel-plate high-strength concrete combined coupled shear wall which comprises double-steel-plate high-strength concrete shear wall bodies and a replaceable steel coupling beam. The double-steel-plate high-strength concrete shear wall bodies and the replaceable steel coupling beam are welded together. The replaceable steel coupling beam comprises a replaceable energy-dissipation yielding beam section arranged in the midspan position of the coupled beam and non-yielding beam sections located at the two ends of the replaceable energy-dissipation yielding beam section, wherein the replaceable energy-dissipation yielding beam section is connected with the non-yielding beam sections through end plates and high-strength bolts. According to the replaceable steel coupling beam and double-steel-plate high-strength concrete combined coupled shear wall, the replaceable steel coupling beam and the double-steel-plate shear wall bodies are combined organically into the shear wall structure with the good ductility and the good energy-dissipation capacity, the design requirements of a super high-rise building structure for the high axial compression, the high ductility and a thin wall body of the shear wall can be well met, and the replaceable steel coupling beam and double-steel-plate high-strength concrete combined coupled shear wall has important theoretical significance and practical value in the improvement of the seismic performance of a high-rise structure and a super high-rise structure and disaster reduction and prevention; in addition, the replaceable steel coupling beam and double-steel-plate high-strength concrete combined coupled shear wall is simple in structure, an outer-side steel plate can also be used as a formwork, construction is convenient, and the replaceable steel coupling beam and double-steel-plate high-strength concrete combined coupled shear wall has broad application prospect.

Description

technical field [0001] The invention belongs to the field of anti-seismic technology of steel and concrete combined structure and mixed structure, and specifically relates to a replaceable steel connecting beam-double-layer steel plate high-strength concrete combined limb shear wall. Background technique [0002] The use of high-strength materials in engineering structures can not only meet the needs of modern engineering structures for high-rise and large-span development, reduce the cross-sectional size of structural members, and save material consumption; it can also improve the durability of concrete structures and prolong the service life of structures. economic and social benefits. However, studies have shown that after the compressive strength of concrete is increased, its tensile strength, shear strength and coarse aggregate strength are relatively low, and the ductility is reduced, thus reducing the seismic performance of high-strength concrete structures. As a res...

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Problems solved by technology

Reinforced concrete coupling beams generally have a small span-to-height ratio, and are prone to shear failure under the reciprocating action of earthquakes. At the same time, due to the heavy weight of the entire steel coupling beam in high-rise buildings and the large plastic deformation under strong earthquakes, steel beams and beams are prone to occur. Partial damage occurred at the connection part of the wall pier, and it is difficult to replace it directly after the earthquake. It is very difficult to repair the steel connecting beam after the earthquake.

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