| 挡块对斜拉桥抗震性能的影响 |
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| 引用本文： | 余建星,王新岐.挡块对斜拉桥抗震性能的影响[J].地震工程与工程振动,2002,22(4):114-119. |
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| 作者姓名： | 余建星 王新岐 |
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| 作者单位： | 天津大学建筑工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目 (5 99790 18) |
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| 摘 要： | 本文基于现有永和斜拉桥挡块设施的严重破损，引入非线性挡块元，采用有限元计算分析挡块对斜拉桥抗震性能的影响。结果表明，斜拉桥塔根挡块的调协对减震效果影响不大，但挡块具有减小塔顶残余变形的有利作用。鉴于此，对永和斜拉桥挡块进行修复是必要的。
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| 关 键 词： | 斜拉桥 挡块 非线性地震反应 漂浮体系 抗震性能 |
| 文章编号： | 1000-1301(2002)04-0114-06 |
Influence of block on anti - seismic behavior of cable - stayed bridge |
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| YU Jian xing,WANG Xin qi.Influence of block on anti - seismic behavior of cable - stayed bridge[J].Earthquake Engineering and Engineering Vibration,2002,22(4):114-119. |
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| Authors: | YU Jian xing WANG Xin qi |
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| Abstract: | Baseed on dilapidation of Yonghe cable-stayed bridge, this paper analyses the influence of block on anti-seismic behavior of cablestayed bridge by using a nonlinear block-element. The results obtained indicate that block at the root of tower has little effect on shock-reduction of cable-stayed bridge, but the block has the advantage of decreasing the residual deformation at the top of tower .Thus, rehabilitation of block is necessary for Yonghe cable-stayed bridge. |
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| Keywords: | Cable-stayed bridge block nonlinear earthquake response floating type |
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