| 轻质混凝土连续刚构抗震性能分析 |
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| 引用本文： | 赵国辉,刘健新.轻质混凝土连续刚构抗震性能分析[J].长沙交通学院学报,2009,25(3). |
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| 作者姓名： | 赵国辉 刘健新 |
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| 作者单位： | 长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064 |
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| 摘 要： | 以某连续刚构为工程背景,研究采用轻质混凝土上部结构的高墩大跨连续刚构桥的抗震性能.通过对比分析,得知采用轻质混凝土和普通混凝土上部结构的全桥动力特性差异及其原因;采用纤维梁单元模拟桥墩塑性铰,分析了在大震激励下两种结构桥墩的塑性铰破坏程度与滞回耗能.分析结果表明,采用轻质混凝土上部结构能明显降低桥墩塑性铰区域的内力响应、消耗的能量及破坏程度.
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| 关 键 词： | 轻质混凝土 连续刚构 抗震性能 动力特性 纤维梁单元 |
Analysis of seismic performance of continuous rigid frame using lightweight concrete in superstructure |
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| ZHAO Guo-hui,LIU Jian-xin.Analysis of seismic performance of continuous rigid frame using lightweight concrete in superstructure[J].Journal of Changsha Communications University,2009,25(3). |
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| Authors: | ZHAO Guo-hui LIU Jian-xin |
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| Institution: | ZHAO Guo-hui,LIU Jian-xin(Bridge , Tunnel Key Laboratory of Shanxi,Chang'an University,Xi'an 710064,China) |
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| Abstract: | The general objective of this research is to evaluate the earthquake resistant behavior of continuous rigid frame using lightweight concrete in superstructure.This research is concerned with investigating the difference of dynamic characteristic and seismic response between two bridges using lightweight concrete(LWC) and normal weight concrete(NWC) in superstructure.Under the huge earthquake ground motion,fiber beam-column element is used to simulate the plastic hinge in piers,the result of nonlinear time h... |
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| Keywords: | lightweight concrete continuous rigid frame earthquake resistant behavior dynamic characteristic fiber beam-column element |
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