| 钢筋混凝土桥墩刚度和强度折减系数确定 |
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| 引用本文： | 李永哲,阎贵平,鞠彦忠.钢筋混凝土桥墩刚度和强度折减系数确定[J].中国安全科学学报,2003,13(8):53-55. |
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| 作者姓名： | 李永哲 阎贵平 鞠彦忠 |
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| 作者单位： | 北方交通大学土建学院 |
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| 摘 要： | 为了解析地预测钢筋混凝土桥墩在反复荷载作用下的非线性滞回特性 ,笔者运用实验中得到的力 -位移滞回曲线 ,对随轴压比、配筋率和配箍率的变化而变化的刚度和强度折减系数 ,进行了回归分析 ,并提出了计算表达式。按照笔者的理论力 -位移滞回模型 ,能预测现存钢筋混凝土桥墩的刚度和强度折减情况 ,对桥梁钢筋混凝土桥墩的可靠性和抗震性能的检验 ,有实用价值
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| 关 键 词： | 材料的非线性特性 非线性滞回性能 刚度折减系数 强度折减系数 |
| 修稿时间： | 2003年3月1日 |
Determination of the Degradation Coefficient of Stiffness and Strength for Circular Piers of Reinforced Concrete Bridge |
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| Li Yongzhe,Prof. Yan Guiping,Prof. Ju Yanzhong,Prof..Determination of the Degradation Coefficient of Stiffness and Strength for Circular Piers of Reinforced Concrete Bridge[J].China Safety Science Journal,2003,13(8):53-55. |
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| Authors: | Li Yongzhe Prof Yan Guiping Prof Ju Yanzhong Prof |
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| Abstract: | The nonlinear hysteretic behavior of reinforced concrete bridge piers subjected to repeated reversal loading is analytically predicted. Based on the experimental force displacement curve, the analytical hysteretic model for stiffness and strength degradation has been developed through the linear regression analysis on the effects of axial force ratio, longitudinal reinforcement ratio, confined reinforcement ratio, etc. |
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| Keywords: | Nonlinear characteristics of material Nonlinear hysteretic behavior Strength degradation coefficient Stiffness degradation coefficient Hysteretic model |
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