| 混凝土箱梁横向温度应力分析 |
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| 引用本文： | 周记国,李真兴,乔颖. 混凝土箱梁横向温度应力分析[J]. 湖南工程学院学报(自然科学版), 2012, 0(3): 85-87 |
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| 作者姓名： | 周记国 李真兴 乔颖 |
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| 作者单位： | 湖南科技大学土木工程学院 |
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| 摘 要： | 研究了日照温度梯度荷载作用下混凝土箱梁的横向温度应力的计算方法.基于热弹性理论和应变阻止法基本理论并考虑纵横向应力之间的耦合,提出一种新的横向温度应力的计算方法.通过与中国公路桥涵设计规范即采用结构力学不考虑应力耦合的计算方法进行对比,证明这两种不同计算方法得出的结果存在明显差别.
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| 关 键 词： | 混凝土箱梁 温度梯度荷载 温度应力 |
The Analysis of Transverse Thermal Stresses of Concrete Box-girder |
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| ZHOU Ji-guo,LI Zhen-xing,QIAO Ying. The Analysis of Transverse Thermal Stresses of Concrete Box-girder[J]. Journal of Hunan Institute of Engineering(Natural Science Edition), 2012, 0(3): 85-87 |
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| Authors: | ZHOU Ji-guo LI Zhen-xing QIAO Ying |
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| Affiliation: | (School of Civil Engineering,Hunan Science and Technology University,Xiangtan 411201,China) |
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| Abstract: | This paper mainly studies the calculation of transverse temperature stress for concrete box girder under the sunshine temperature load.Based on thermo-elastic theory,and strain prevent theory and considering longitudinal and transversal stress coupling,a new calculation method for transverse temperature stress is proposed.The comparison with the Chinese highway bridge design code which uses structural mechanics and does not considers stress coupling proves that there are significant differences in the results of two different calculation methods. |
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| Keywords: | concrete box girder thermal gradient load thermal stress |
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