| 连续刚构桥顶板纵向裂缝成因分析及设计反思 |
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| 引用本文： | 李琦,刘清春.连续刚构桥顶板纵向裂缝成因分析及设计反思[J].水运科技信息,2012(3):38-40. |
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| 作者姓名： | 李琦 刘清春 |
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| 作者单位： | [1]招商局重庆交通科研设计院有限公司,重庆400067 [2]西南交通大学土木工程学院,成都610031 |
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| 摘 要： | 结合某高速公路全线的4座连续刚构桥的箱梁裂缝病害情况,对预应力混凝土连续刚构桥的常见病害进行了分析,并重点分析了箱梁的顶板裂缝病害成因,对原设计进行了反思,探讨了结构设计中应当注意的构造尺寸、配筋等细节问题,并给出了相应的优化建议。
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| 关 键 词： | 连续刚构 顶板纵向裂缝 成因分析 设计反思 |
Causes Analysis and Design Rethink for Longitudinal Crack of Box Roof of Continuous Rigid Frame Bridge |
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| Li Qi,Liu Qingchun.Causes Analysis and Design Rethink for Longitudinal Crack of Box Roof of Continuous Rigid Frame Bridge[J].Transportation Science & Technology,2012(3):38-40. |
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| Authors: | Li Qi Liu Qingchun |
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| Institution: | 1. China Merchants Chongqing Communications Research ＆ Design Institute Co. ,Ltd. ,Chongqing 400067,China; 2. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China) |
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| Abstract: | Combined with the crack defect of box girder of 4 continuous rigid frame bridges in express- way, the common disease of pre-stressed concrete continuous rigid frame was introduced and ana- lyzed. The reason of the crack defect of top-slab of box girder was analyzed, and the reflection wasmade on initial design some problems. Were explored in design, such as structure size and reinforce- ment etc. At last the optimization suggestion was summarized. |
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| Keywords: | continuous rigid frame longitudinal crack of box roof analysis of causes rethink of de-sign |
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