钢铅组合耗能器力学性能试验研究

详细信息

EXPERIMENTAL STUDY OF MECHANICAL PROPERTIES OF STEEL-LEAD MIXED DAMPERS

School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China;2. School of Civil Engineering, Guangzhou University, Guangzhou 510405, China

摘要: 为了设计具有竖向耗能能力的抗倾覆装置,介绍了一种钢铅组合耗能器。通过对其静力、动力、电液伺服动静万能试验机实验结果的分析,表明该阻尼器能够使钢铅两种材料协同工作、共同耗能,具有制作工艺简单,能够满足位移小、阻尼大,耗能稳定的要求。通过分析还给出了耗能器的力学性能和恢复力模型。对大高宽比隔震结构的仿真计算分析表明,安装钢铅组合耗能器的抗倾覆装置具有一定的耗能能力,并能够避免结构倾覆。
- 防灾减灾 /
- 结构抗震 /
- 试验研究 /
- 钢铅组合耗能器 /
- 滞回曲线 /
- 恢复力模型
Abstract: For design of overturn-resistant equipment with vertical energy dissipation, a steel-lead mixed damper is designed. Tensile and cyclic loading tests are performed to study the mechanical properties of the damper. Results show that the bi-material damper can work efficiently to dissipate energy. Based on the results, the hysteretic curve is given and the restoring model is set up. A base-isolated structure with a large height-to-width ratio is analyzed. The result indicates that the steel-lead mixed damper can dissipate energy and avoid overturn of structure.
- disaster prevention and reduction /
- earthquake-resistance of structure /
- experimental study /
- steel-lead mixed damper /
- hysteretic curve /
- restoring force model