| 混凝土徐变对重庆石板坡长江大桥长期服役性能的影响 |
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| 引用本文： | 翟影,刘纲,杨溥,张光玮. 混凝土徐变对重庆石板坡长江大桥长期服役性能的影响[J]. 工程抗震与加固改造, 2005, 0(Z1) |
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| 作者姓名： | 翟影 刘纲 杨溥 张光玮 |
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| 作者单位： | 重庆大学土木工程学院 重庆大学土木工程学院 重庆 |
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| 摘 要： | 混凝土徐变对预应力混凝土连续刚构桥梁长期服役下的变形及受力有非常重要的影响。本文以重庆石板坡长江大桥为工程背景,采用CEB-FIP(MC90)的徐变模型,对成桥十年后该桥的徐变效应引起的桥梁变形、内力和预应力损失进行了计算分析,分析结果对该类桥梁的施工分析及设计具有一定的借鉴作用。
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| 关 键 词： | 混凝土徐变 徐变模型 桥梁变形 预应力损失 |
Influence of Concrete Creep on the Long-term Performance of Chong-Qing Shi-Ban-Po Chang-Jiang Bridge |
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| Zhai Ying,Liu Gang,Yang Pu,Zhang Guang-wei. Influence of Concrete Creep on the Long-term Performance of Chong-Qing Shi-Ban-Po Chang-Jiang Bridge[J]. Earthquake Resistant Engineering and Retrofitting, 2005, 0(Z1) |
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| Authors: | Zhai Ying Liu Gang Yang Pu Zhang Guang-wei |
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| Abstract: | Concrete creep seriously influences the long-term performance of prestress concrete continuous frame bridge.Based on Chongqing Shibanpo Changjiang Bridge,using the creep model of CEB-FIP(MC90),the deformation,internal force and prestress losses of creep responses at ten years after the completion of the bridge are analysed.The analysis result is useful to the construction analysis and design of the bridge to a certain extent. |
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| Keywords: | concrete creep creep model deformation of bridge prestress loss |
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