| 基于碰撞调谐质量阻尼器的矮塔斜拉桥减震研究 |
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| 引用本文： | 张鹏,刘海涛,杨刚,吴思润.基于碰撞调谐质量阻尼器的矮塔斜拉桥减震研究[J].世界地震工程,2020,0(4):163-168. |
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| 作者姓名： | 张鹏 刘海涛 杨刚 吴思润 |
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| 作者单位： | 大连海事大学,交通运输工程学院,辽宁 大连 116023 |
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| 基金项目： | 国家自然科学基金;中央高校基本科研业务费专项;辽宁省航运基金项目 |
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| 摘 要： | 以一座矮塔斜拉桥为研究对象，分析碰撞调谐质量阻尼器对于该结构的抑震效果。首先介绍了新型碰撞调谐质量阻尼器（Pounding Tuned Mass Damper，PTMD）的减震机理及基于接触单元的非线性碰撞力模型；之后，通过ANSYS软件中的APDL语言实现了PTMD减震系统的时域分析方法，并通过三条实际地震记录验证了PTMD的抑震效果。数值分析结果表明:（1）传统调谐质量阻尼器（tuned mass damper，TMD）及新型PTMD对于矮塔斜拉桥的位移、加速度及塔身弯矩响应均有较好的抑制效果；（2）PTMD相比传统TMD多了一种碰撞耗能模式，其减震效果略高于传统TMD。
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| 关 键 词： | 矮塔斜拉桥 调谐质量阻尼器 碰撞调谐质量阻尼器 抗震性能 |
Seismic vibration control of a low-tower cable-stayed bridge with pounding tuned mass damper |
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| ZHANG Peng,LIU Haitao,YANG Gang,WU Sirun.Seismic vibration control of a low-tower cable-stayed bridge with pounding tuned mass damper[J].World Information On Earthquake Engineering,2020,0(4):163-168. |
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| Authors: | ZHANG Peng LIU Haitao YANG Gang WU Sirun |
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| Institution: | College of Transportation Engineering, Dalian Maritime University, Dalian 116023, China |
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| Abstract: | A novel vibration control device, pounding tuned mass damper (PTMD) is proposed in this study to mitigate the seismic vibration of low-tower cable-stayed bridge. The vibration control mechanism of the PTMD is discussed by comparison with the classical tuned mass damper (TMD). A pounding force model based on the contact element method is established using the APDL language of the ANSYS software to enable time history analysis. Finite element model of a practical bridge is established and three recorded ground motion are employed to excite the bridge. Numerical results implied that:(1)Both the traditional TMD and the novel PTMD can effectively suppress the displacement, acceleration and moment of the bridge. (2)The vibration reduction ratio of the PTMD is slight higher than the classical TMD, due to its additional impact damping behavior. |
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| Keywords: | low tower cable stayed bridge tuned mass damper pounding tuned mass damper seismic performance |
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