A Post-Earthquake Recoverable Coupling Beam with Bending and Shear Separately Controlled Energy Dissipation Mechanism

Abstract

The invention discloses a post-earthquake function recoverable connecting beam with a bending-shear separate control energy consumption mechanism, comprising: a first elastic connecting beam, a second elastic connecting beam, connecting bolts, anchors, a first elastic connecting beam and a second elastic connecting beam One end of the second elastic connecting beam is inserted through the connection slot and the insertion protrusion, and is connected by a connection bolt. The contact surface between the connection slot and the insertion protrusion is a friction surface, and the first elastic connection beam and the second elastic connection beam are separately One end is respectively anchored to the shear wall limb by shape memory alloy lengthening screw and anchor piece. The shear wall limb is provided with a zigzag shear-resistant plug-in key, and the other end faces of the first elastic connecting beam and the second elastic connecting beam are The shapes of all are the several-shaped splicing surfaces that are suitable for the several-shaped shear-resistant splicing keys. During an earthquake, the first elastic connecting beam and the second elastic connecting beam move up and down to drive the friction surface to dissipate energy, and the end of the connecting beam and the wall pier rotate, which drives the plastic deformation of the shape memory alloy extension screw to participate in energy dissipation, and the shock Functions can be quickly restored afterwards.

Description

technical field [0001] The invention relates to the technical field of structural shock absorption, in particular to a post-earthquake functional recoverable coupling beam with a bending-shear split-control energy dissipation mechanism. Background technique [0002] The shear wall structure is widely used in high-rise buildings with good seismic performance. According to the requirements of function and ductility, a hole is often formed in the middle of the shear wall to form a joint shear wall. The actual earthquake damage shows that the damage of the building is often concentrated in the coupling beam of the shear wall. When the coupling beam is completely destroyed, the damage of the building further extends to the shear wall pier. However, the traditional structure of coupling beams and shear wall piers are relatively difficult to repair, and the repair costs are high, which is not conducive to the restoration of the building's use function after the earthquake. [0003...

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Problems solved by technology

[0005] In view of this, the present invention provides a post-earthquake function recoverable coupling beam with bending and shearing separately controlled energy consumption mechanism to solve the problem that the coupling beam in the prior art cannot make full use of the bending and shearing deformation mechanism for energy consumption and post-earthquake unfixable problem

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