| 桥梁承台混凝土温度应力场及裂缝控制 |
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| 引用本文： | 孙宪魁,杨三强,刘涛,汪海年. 桥梁承台混凝土温度应力场及裂缝控制[J]. 吉林林学院学报, 2010, 0(5): 453-456 |
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| 作者姓名： | 孙宪魁 杨三强 刘涛 汪海年 |
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| 作者单位： | [1]新疆交通建设管理局,新疆乌鲁木齐830001 [2]新疆交通科学研究院干旱荒漠区公路工程技术交通行业重点实验窒,新疆乌鲁木齐830000 [3]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 |
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| 基金项目： | 西部交通建设科技项目（200331879702） |
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| 摘 要： | 以连霍高速公路G30果子沟斜拉桥为研究对象,分析了西北高寒地区桥梁承台大体积混凝土因温差引起裂缝病害的成因,给出了控制措施.使用ANASYS仿真分析方法剖析了桥梁承台大体积混凝土温度应力场的分布规律以及裂缝产生的机理.结果表明：桥梁承台大体积混凝土绝大部分出现压应力,模型效果与工程实际吻合良好.
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| 关 键 词： | 大体积混凝土 温度应力 温度裂缝 裂缝控制 有限元分析 |
Thermal Stress and Crack Control of Bridge Bearing Platform Concrete |
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| SUN Xian-kui,YANG San-qiang,LIU Tao,WANG Hai-nian. Thermal Stress and Crack Control of Bridge Bearing Platform Concrete[J]. , 2010, 0(5): 453-456 |
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| Authors: | SUN Xian-kui YANG San-qiang LIU Tao WANG Hai-nian |
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| Affiliation: | 1.Xinjiang Communication and Construction Administration,Urumqi 830001,China;2.Xinjiang Communications Science Institute,Transport Sector Key Laboratory of Highway Engineering Technology in Arid Desert,Urumqi 830000,China;3.Key Laboratory for Special Area Highway Engineer of Ministry of Education,Changan University,Xian 710064,China) |
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| Abstract: | With Lian-Huo expressway（G30 cable-stayed bridge） as the research object,the control measures and the reasons of bridge bearing platform mass concrete crack diseases which was caused by temperature difference in northwest alpine region were researched.Through using the ANASYS simulation analysis method,the thermal stress distribution and crack formation mechanism of the bridge with mass concrete were analyzed.Results indicated that most of the mass concrete appeared compressive stress,and the model results accorded with theoretical and engineering application. |
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| Keywords: | mass concrete thermal stress temperature crack crack control finite element analysis |
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