| 连续刚构梁桥薄壁柔性墩身裂缝产生原因 |
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| 引用本文： | 梁合兴,何庭蕙,劳晓春,汤立群.连续刚构梁桥薄壁柔性墩身裂缝产生原因[J].暨南大学学报,2005,26(1):110-113. |
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| 作者姓名： | 梁合兴 何庭蕙 劳晓春 汤立群 |
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| 作者单位： | 广东肇庆市公路局,广东,肇庆,526040;华南理工大学交通学院,广东,广州,510640 |
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| 摘 要： | 通过调查已建成的连续刚构桥梁的薄壁柔性墩身裂缝分布状况，和对正在施工中的连续刚构桥梁的薄壁柔性墩身进行受力分析，初步得到连续刚构梁桥的薄壁柔性墩墩身裂缝产生的原因。研究表明，墩身在平行于水流方向的两侧面上的竖向裂缝，可能是由于墩身在底部和中间变截面处的倒角附近区域产生较大剪应力而引起的。
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| 关 键 词： | 连续刚构梁桥 薄壁柔性墩身 墩身裂缝 剪应力 |
| 文章编号： | 1000-9965(2005)01-0110-04 |
| 修稿时间： | 2004年6月30日 |
Preliminary research on the cause of the cracks in thin-walled flexible piers of continuous rigid frame bridges |
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| LIANG He-xing,HE Ting-hui,LAO Xiao-chun,TANG Li-qun.Preliminary research on the cause of the cracks in thin-walled flexible piers of continuous rigid frame bridges[J].Journal of Jinan University(Natural Science & Medicine Edition),2005,26(1):110-113. |
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| Authors: | LIANG He-xing HE Ting-hui LAO Xiao-chun TANG Li-qun |
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| Institution: | LIANG He-xing~1,HE Ting-hui~2,LAO Xiao-chun~2,TANG Li-qun~2 |
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| Abstract: | Through the investigations on the distribution of cracks in thin-walled flexible piers of built continuous rigid frame bridges, and mechanics analysis on a thin-walled flexible pier of a building continuous rigid frame bridge, the cause of the cracks on the piers is derived preliminarily. The researches show that the vertical cracks on the surfaces paralleled to water flow of thin-walled flexible piers may be induced by the large shear stresses at the faceoffs in the cross-section near the bearing and the variable cross-section of the pier. |
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| Keywords: | continuous rigid frame bridge thin-walled flexible piers cracks shear stress |
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