| 银窝滩大桥0号块空间应力分析 |
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| 引用本文： | 马玥,李璐,朱波,李凌俊.银窝滩大桥0号块空间应力分析[J].交通标准化,2012(3):123-127. |
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| 作者姓名： | 马玥 李璐 朱波 李凌俊 |
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| 作者单位： | 1. 重庆交通大学土木建筑学院,重庆400074;广西交通科学研究院,广西南宁530007
2. 重庆交通大学土木建筑学院,重庆,400074 |
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| 摘 要： | 利用ANSYS有限元软件,通过热-结构耦合分析,研究0号块浇筑过程中水化热对结构应力的影响;通过计入预应力、混凝土收缩以及时间效应的影响,分析其在施工和运营阶段的空间应力分布。分析结果表明:横隔板、承托倒角等结构连接和过渡区会出现较大拉应力,应加强配筋布置。
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| 关 键 词： | 连续刚构 0号块 应力分析 温度应力 |
Analysis on Spatial Stress of Segment No.0 at Yinwotan Bridge |
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| MA Yue,LI Lu,ZHU Bo,LI Ling-jun.Analysis on Spatial Stress of Segment No.0 at Yinwotan Bridge[J].Communications Standardization,2012(3):123-127. |
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| Authors: | MA Yue LI Lu ZHU Bo LI Ling-jun |
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| Institution: | 1.School of Civil Engineering ＆ Architecture,Chongqing Jiaotong University,Chongqing 400074,China; 2.Guangxi Transportation Research Institute,Nanning 530007,China) |
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| Abstract: | Though analysis of thermal-structure coupling,the influence of hydration heat on structure stress during the construction process of segment No.0 is investigated by ANSYS in this paper.Meanwhile,the spatial stress under construction and operation is analyzed by considering the prestressed force,concrete shrinkage and time-dependent.The results from the analysis indicate that there is a big tensile stress in the connection and transition of diaphragm and box corner,which suggests that the reinforcement layout should be strengthened. |
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| Keywords: | continued rigid frame segment No 0 stress analysis temperature stress |
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