Abstract

Info

Title:: Application of Shear-rotation Viscoelastic Damper in Wind Resistance of Rural Wood Structure

Author(s):: LI Hong-nan; NI Pei-hua; FU Xing; Faculty of Infrastructure Engineering, Dalian University of Technology

Keywords:: wind-resistance design; viscoelastic damper; vibration control; rural wood structure

Abstract:: A damper was applied in low-rise wood structure to resist wind load as many low-rise structure collapsed under the strong wind load. Aimed at the problem that mortise and tenon joint rotation model was different from actual situation because of linear elasticity in the existing simulation of wood structures and without considering plasticity deformation, the plasticity of mortise and tenon joint was considered in the structure analysis. The dynamic response and control effect of the structure under strong wind were analyzed, and viscoelastic damper was verified to have great effect on the vibration control of the wood structure under wind load by numerical simulation.The results show that considering nonlinear joint, the story drift of wood structure decreases greatly and the energy dissipation of the damper also decreases, but the nonlinear joint does not affect the reduction ratios.