J Shanghai Jiaotong Univ Sci

Journal of shanghai Jiaotong University (Science) ›› 2013, Vol. 18 ›› Issue (1): 118-128.doi: 10.1007/s12204-013-1374-5

• Articles • Previous Articles    

Research on the Dynamic Performance of Low-Yield-Strength Shear Panel Damper for Bridge Application

Research on the Dynamic Performance of Low-Yield-Strength Shear Panel Damper for Bridge Application

ZHANG Chao-feng1,2* (张超锋), ZHANG Zhi-sheng2 (张志胜), AOKI Tetsuhiko3 (青木徹彦), ZHANG Min4 (帐目)   

  1. (1. School of Mechanical Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China; 2. School of Mechanical Engineering, Southeast University, Nanjing 211189, China; 3. School of Civil Engineering, Aichi Institute of Technology, Tokyo 050043, Japan; 4. Changzhou Road Structure Damping Equipments Co., Ltd., Changzhou 213012, Jiangsu, China)
  2. (1. School of Mechanical Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China; 2. School of Mechanical Engineering, Southeast University, Nanjing 211189, China; 3. School of Civil Engineering, Aichi Institute of Technology, Tokyo 050043, Japan; 4. Changzhou Road Structure Damping Equipments Co., Ltd., Changzhou 213012, Jiangsu, China)
  • Online:2013-02-28 Published:2013-03-19
  • Contact: ZHANG Chao-feng1,2* (张超锋) E-mail: zcf830703@163.com

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Abstract: 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.

Key words: low-yield-strength shear panel damper (LYSPD)| dynamic simulation| dynamic loading tests| mechanical property| fatigue evaluation

摘要： 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.

关键词: low-yield-strength shear panel damper (LYSPD)| dynamic simulation| dynamic loading tests| mechanical property| fatigue evaluation

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