Self-resetting energy-consuming cable support

Abstract

The invention discloses a self-resetting energy consumption inhaul cable support which comprises a pulley, a pulley base, a prestress reset rib, an anchorage device, a limiting plate, a sliding frame, a bottom plate, a high-strength steel cable, a friction plate, a steel base plate and a connecting plate. The pulley is fixed to the pulley base. The pulley base is fixed to a main structure through a bolt. One end of the prestress reset rib is anchored to the limiting plate through the anchorage device. The other end of the prestress reset rib winds around the pulley, and builds prestress through a post-tensioning method to be connected with the sliding frame. The self-resetting energy consumption inhaul cable support has the advantages that the resetting capability of the support is enhanced exponentially, or the selection range of the reset rib material is widened exponentially, the structure complexity degree of the support is simplified, and the working performance of the support is ensured; 2, the cross section of the support is reduced, and therefore the earthquake effect is effectively reduced; 3, the yield stiffness designability is provided for the support.

Description

Technical field [0001] The invention belongs to the field of civil engineering and relates to a self-resetting energy-consuming cable support. Background technique [0002] As a kind of highly effective lateral force system, the supporting frame system is widely used in the field of engineering seismic resistance, in which the performance of the support directly determines the seismic performance of the system. Ordinary central support has a large lateral stiffness in the elastic stage and has a good displacement control effect; but the buckling of the support under the action of strong earthquakes will cause the stiffness and bearing capacity to drop rapidly, and the ductility and hysteresis performance is weak. Special central supports, eccentric supports and buckling restrained supports use the yield mechanism of gussets, energy-dissipating beam ends or energy-dissipating cores to dissipate seismic energy, and have strong nonlinear deformation capabilities, but will produce la...

AI Technical Summary

Problems solved by technology

[0004] In order to ensure the stability of the existing self-resetting support when it is under pressure, the cross-sectional area of ​​the support is very large, which increases the earthquake effect and is very unfavorable to the structural stress

[0005] In addition, the existing support forms have the problem of low yield stiffness, and the structural deformation tends to expand to the first floor to yield, which limits the redistribution of lateral stiffness along the height direction of the structure, and the problem of residual deformation is more prominent

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