| 预应力混凝土连续刚构桥底板崩裂成因及处理方案 |
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| 引用本文： | 张新志. 预应力混凝土连续刚构桥底板崩裂成因及处理方案[J]. 河北科技师范学院学报, 2010, 24(2): 60-63,76 |
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| 作者姓名： | 张新志 |
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| 作者单位： | 中交路桥技术有限公司,北京100018 |
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| 摘 要： | 对连续刚构桥中跨底板混凝土在纵向预应力束引起的径向力作用下可能崩裂的现象进行了分析,分析了崩裂的原因,阐述了径向力、箍筋应力的计算过程及径向力纵桥向分布情况;提出了避免这种崩裂的一些措施。结合工程实例探讨了对已压浆情况下崩裂问题的处理方案。本研究中的分析处理方法适用于其它空间配束的桥型。
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| 关 键 词： | 预应力连续刚构桥 底板崩裂 径向力纵桥向分布 箍筋应力 |
Discussion of the Causes and Treatments of the Soleplate Crack of the Continuous Rigid Frame Bridge |
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| ZHANG Xin-zhi. Discussion of the Causes and Treatments of the Soleplate Crack of the Continuous Rigid Frame Bridge[J]. Journal of Hebei Normal University of Science & Technology, 2010, 24(2): 60-63,76 |
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| Authors: | ZHANG Xin-zhi |
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| Affiliation: | ZHANG Xin-zhi(China Communications Construction Company Road and Bridge Consultants CO.LTD,Beijing,100018,China) |
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| Abstract: | This paper analyses the causations of soleplate crack of continuous rigid frame bridge,including the analysis of the causes of crack,computational process of radial force and stirrup stress,and radial force along the bridge.The paper also puts forward some measures of avoiding the soleplate crack,and discusses the treatments of the corrugated pipe grouted in the project.Analytic method of this paper can be applied to other bridges of spatial bars. |
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| Keywords: | continuous rigid frame bridge soleplate crack radial force along the bridge stirrup stress |
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