Self-resetting shear energy-dissipating replaceable coupling beam

Abstract

The invention relates to a self-resetting shear energy-consuming replaceable connecting beam, which includes a non-energy-consuming section steel connecting beam semi-embedded in a shear wall, and a replaceable section of energy-consuming connecting beam, and a non-replaceable section Both ends are fixedly connected with replaceable section bolts. The replaceable section includes two self-resetting shear energy dissipation dampers connected with the outer I-beam through a transmission rod. With the relative movement of the two wall limbs of the joint shear wall, the end of the replaceable coupling beam is deformed, and the internal self-resetting shear energy-dissipating damper is caused to move axially relative to the internal self-resetting shear energy dissipation damper through the transmission rod. The shear deformation of the shear lead block and the axial deformation of the externally configured cylindrical helical spring bellows consume energy, and the damper restores part of its original vibration characteristics through the shape memory alloy after the earthquake. Compared with the prior art, the invention has the advantages of self-resetting, high energy consumption, adaptability to different vibration intensities, controllable damage position, replaceable, etc., and can be used in a shear wall structure system with recoverable functions.

Description

Technical field[0001]The present invention relates to the field of earthquake resistance and disaster prevention and mitigation in civil engineering structures, in particular, involving a self-reset shear energy consumption type replaceable joint.Background technique[0002]The earthquake has caused huge disasters and losses to my country. After the structures are hurt, some components are severely damaged, while replaceable components can be replaced to reduce significant components in the seismic to save most of the cost. As the first defense line of the anti-rash shear wall seismic system, it is often destroyed when it encounters a large earthquake, so the importance of replacing the linkage of the mounting wall structure can be disclosed. In addition to sufficient intensity and stiffness to provide sufficient constraints in the lippet shear wall, another main function is to dissipate a large amount of earthquake energy protection wall limbs from severe damage.[0003]In view of this...

AI Technical Summary

Problems solved by technology

Most of the replaceable coupling beams that have been developed so far only start to consume energy under moderate and large earthquakes, which cannot meet the comfort requirements of high-rise building structures during small earthquakes and wind vibrations

Metal yield energy dissipation or lead core rubber energy dissipation are widely used in replaceable sections, but the above mechanisms are easily affected by environmental factors such as temperature

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