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| 钢筋混凝土桥墩纵筋非线性失稳长度计算方法 | |
| 引用本文： | 李永哲,阎贵平,崔华一.钢筋混凝土桥墩纵筋非线性失稳长度计算方法[J].建筑科学,2004,20(2):20-23. |
| 作者姓名： | 李永哲 阎贵平 崔华一 |
| 作者单位： | 1. 北京交通大学土建学院,北京100044;平壤铁道大学土木工程系,平壤 2. 北京交通大学土建学院,北京100044 3. 平壤铁道大学土木工程系,平壤 |
| 摘 要： | 为了评估钢筋混凝土桥墩的极限水平位移，根据塑性铰区变形特性，合理确定塑性铰区长度是非常重要的。本文基于有限元分析，从理论上给出了桥墩根部纵筋失稳时的长度，并与实验结果进行了比较。通过纵筋失稳分析结果，提出了考虑到材料非线性时桥墩纵筋失稳长度的简化表达式。 |
| 关 键 词： | 钢筋混凝土 桥墩 纵向钢筋 非线性 失稳长度 塑性铰区长度 |
| 文章编号： | 1002-8528(2004)02-0020-04 |
Analytical Method of Buckling of Longitudinal Reinforcement For RC Bridge Piers |
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| LI Yong-zhe.Analytical Method of Buckling of Longitudinal Reinforcement For RC Bridge Piers[J].Building Science,2004,20(2):20-23. | |
| Authors: | LI Yong-zhe |
| Affiliation: | LI Yong-zhe~ |
| Abstract: | In order to assess the ultimate displacement of reinforced concrete bridge pier, it is very important reasonably to determine the plastic hinge length based on the deformation characteristics in plastic hinge region. This paper presents the analytical studies on buckling of longitudinal reinforcement in columns with the use of the FEM analyses and compares the theoretical buckling length with that obtained from the column loading tests. Furthermore, based on the analytical studies the simplified procedure for assessing the buckling length of longitudinal reinforcement is proposed with taking account of the inelastic behavior? |
| Keywords: | reinforced concrete bridge pier longitudinal reinforcement buckling length plastic hinge length |
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