Self-resetting composite energy dissipation support utilizing gear to amplify displacement and pulley to open inhaul cable

Abstract

The invention discloses a self-resetting composite energy dissipation support utilizing gears to amplify displacement and pulleys to open inhaul cables. The self-resetting composite energy dissipationsupport is jointly composed of the gears, a sawtooth-shaped metal strip, the pulleys, the high-strength steel wire inhaul cables, viscoelastic dampers, buckling restrained braces and metal rubber energy dissipation devices; and under the action of a small earthquake, the small gears do not make contact with the sawtooth-shaped metal strip, the viscoelastic dampers play a role in energy consumption, under the action of a medium earthquake or a large earthquake, the small gears are meshed with the sawtooth-shaped metal strip to drive the gears and the pulleys to rotate, so that the high-strength steel wire inhaul cables are tensioned and applies tensile force to the high-strength steel wire inhaul cables, the high-strength steel wire inhaul cables play the same role as a prestressed tendon,therefore the purpose of self-resetting is achieved, the gears with different diameters are combined, displacement can be amplified, the high-strength steel wire inhaul cables bear larger tension, and the high-strength steel wire inhaul cables have high self-resetting capacity. The self-resetting composite energy dissipation support can achieve energy dissipation and seismic mitigation under earthquakes with different strengths and can achieve self-resetting under the conditions of medium and large earthquakes, and the safety of a main body structure is protected.

Description

technical field [0001] The invention relates to a self-resetting composite energy-dissipating support utilizing a gear to amplify displacement and a pulley to open a cable. The invention belongs to the field of anti-seismic and shock-absorbing technologies in the field of civil engineering. Background technique [0002] Building structures will inevitably suffer different degrees of damage under the action of earthquakes. In order to reduce the damage of building structures under the action of earthquakes and reduce the casualties and economic losses caused by structural damage, two methods are currently used to improve the earthquake resistance of building structures. One is to provide more safety reserves for the building structure during building design, so that the structure has greater rigidity and earthquake resistance. The second is to install an energy-dissipating shock-absorbing device on the main body of the building structure to dissipate the seismic energy throu...

AI Technical Summary

Problems solved by technology

Under the action of small earthquakes, the damage to the building structure is slight, and it also has a certain self-resetting ability; while under medium and large earthquakes, the energy-dissipating shock-absorbing device and the self-resetting device are always used together, which will significantly weaken the former's full energy-dissipating ability , resulting in the structure being able to self-reset, but the shock absorption performance is forced to decrease

Images