Research on the dynamic performance of low-yield-strength shear panel damper for bridge application
This study seeks to develop a scientific understanding of the effects of dynamic loading history on the low-yield-strength shear panel damper (LYSPD) mechanical properties and fatigue performance.The LYSPD model is supposed as perfect elastic-plastic without strength deterioration.By adjusting the damper strength with the above supposition in the DYMO software,the serial earthquake response waves of the LYSPD under different soil conditions are obtained firstly.Subsequently,several waves,the most prone to damage at each soil condition,are selected as dynamic loading waves to verify the LYSPD dynamic performances experimentally.The test results suggest that the dynamic loading histories have no influence on the LYSPD strength or the supposed model while they affect the fatigue performance.The applicability and accuracy of three fatigue evaluation methods,cumulative plastic shear strain,cumulative energy absorption and Miner rule,are also compared according to the test results.
Low-yield-strength shear panel damper dynamic simulation dynamic loading tests mechanical property fatigue evaluation
Zhang Chaofeng Zhang qiu ju Zhang zhisheng Aoki Tetsuhiko
School of Mechanical Engineering, Jiangnan University, China; School of Mechanical Engineering, Sout School of Mechanical Engineering, Jiangnan University, China School of Mechanical Engineering, Southeast University, China School of Civil Engineering, Aichi Institute of Technology, Japan
国际会议
上海
英文
33-33
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）