Cold bending thin-walled steel plate wall system with built-in friction and negative stiffness composite vibration damping device

Abstract

The invention discloses a cold bending thin-walled steel plate wall system with a built-in friction and negative stiffness composite vibration damping device. The system comprises a metal supporting square rod, a hinge support seat, a friction plate, a groove metal plate, a bolt, a metal box, an universal hinge, a slanting rod, a metal spring, a high-strength metal plate, a tension spring set, a metal sleeve, a side column, a column, a rail beam, a steel strip horizontal pulling strip, a screw and a wall panel. The cold bending thin-walled steel plate wall system has the same function as ordinary cold bending thin-walled steel plate walls under normal conditions; under the action of earthquakes or wind loads, firstly relative sliding of the friction plate in an internal friction device conducts energy consumption and vibration damping, and when the sliding displacement exceeds a certain limit, the pre-tightening force exerted by the bolt deforms the groove metal plate to cause a friction vibration damping device to enter a limit locking state. The problems that a current damping device occupies space, affects the normal working of a wall body and hinders passing are effectively solved.

Description

technical field [0001] The invention relates to a cold-formed thin-walled steel plate wall system with built-in friction and negative stiffness composite damping devices. Under the action of earthquake and wind load, the composite damping device arranged in the cold-formed thin-walled steel plate wall can fully absorb the vibrations. The invention can reduce the adverse effect of vibration on the wall, reduce the dynamic response of the wall structure, and belong to the field of building structure earthquake resistance, wind resistance and vibration reduction control. Background technique [0002] The cold-formed thin-walled steel building system is a structural system formed by using galvanized cold-formed thin-walled steel keel as the main load-bearing material, and has been widely used in China, the United States, Japan and other countries. The cold-formed thin-walled steel plate wall is the main force-bearing member of the structural system, which bears the vertical load...

AI Technical Summary

Problems solved by technology

[0005] At present, there are various common vibration damping devices on the market. Due to many limitations such as volume size and arrangement methods, it is impossible to arrange vibration damping devices in the limited space inside the cold-formed thin-walled steel plate wall.

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