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| 地震作用下预应力锚索抗震性能及预应力损失的研究 | |
| 引用本文： | 刘云,王成,郑颖人,赖杰.地震作用下预应力锚索抗震性能及预应力损失的研究[J].重庆建筑,2012,11(9):26-28,31. |
| 作者姓名： | 刘云 王成 郑颖人 赖杰 |
| 作者单位： | 1. 重庆交通大学土木工程学院,重庆,400074 2. 重庆地质灾害防治工程技术研究中心,重庆400041;后勤工程学院军事建筑工程系,重庆401311 3. 重庆地质灾害防治工程技术研究中心,重庆,400041 |
| 基金项目： | 重庆市自然科学基金项目“地震作用下边坡稳定性新方法及支护结构的抗震性能研究(2010BC8002)”论文之一 |
| 摘 要： | 该文利用完全动力有限元法,对比有预应力锚索支护边坡与无支护边坡在地震下动力响应的差别,研究预应力锚索的抗震性能;其次,分析不同类型地震波作用下锚索预应力损失的情况。数值结果表明:地震动力作用下预应力锚索抗震效果良好,其预应力损失同锚索的位置与输入的地震波类型有关,在地震动下靠近坡顶的锚索起到的抗震作用更为明显。研究结果对预应力锚索支护边坡的抗震性能分析具有参考价值。 |
| 关 键 词： | 预应力锚索 动力响应 抗震性能 预应力损失 |
Research on Seismic Performance and Prestress Losses of Prestressed Anchor Cable under Earthquake Impact |
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| Abstract: | Differences between slop with prestressed anchor cable support and that without any support under earthquake impact are presented with fully dynamic finite element method to study seismic performance of prestressed anchor cable and prestress losses of anchor cable under different types of seismic waves are analyzed. The numerical results show that seismic performance of prestressed anchor cable is quite good under seismic dynamic situation, prestress losses are related to anchor cable location and types of seismic wave and the anchor cable close to slope peak has more obvious seismic performance. The study can offer some references to analysis on seismic performance of slope with prestressed anchor cable support. |
| Keywords: | prestressed anchor cable dynamic response seismic performance prestress losses |
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