| 某立交曲线匝道桥事故分析 |
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| 引用本文： | 王卫锋,韩大建,马文田.某立交曲线匝道桥事故分析[J].华南理工大学学报(自然科学版),1999,27(11):104-107. |
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| 作者姓名： | 王卫锋 韩大建 马文田 |
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| 作者单位： | [1]华南理工大学交通学院 [2]华南理工大学建筑学院 |
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| 摘 要： | 某预应力混凝土立交匝道桥在施工尚未完成时，在圆形墩柱柱身出现肉眼可见的环状裂缝，部分裂缝宽度在１ｍｍ以上，柱顶附近已局部破坏。本文对此匝道桥进行了计算，分析了事故的原因。
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| 关 键 词： | 曲线梁 预应力混凝土桥 匝道桥 事故分析 |
| 修稿时间： | 1999-03-31 |
AN INVESTIGATION OF THE CAUSES OF ANOVERPASS RAMP FAILURE |
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| Wang Weifeng, Ha n Dajian, Ma Wentian,Yan Quansheng.AN INVESTIGATION OF THE CAUSES OF ANOVERPASS RAMP FAILURE[J].Journal of South China University of Technology(Natural Science Edition),1999,27(11):104-107. |
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| Authors: | Wang Weifeng Ha n Dajian Ma Wentian Yan Quansheng |
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| Abstract: | The ramp is a prestressed concrete bridge. During the construction of the ramp, visibleannular cracks horizontally appear in the trunk of the circular piers. Some of the cracks expandedto about half of the circumference. The maximum crack width is more than 1 mm. The concretenear the top of the piers has been locally damaged. This paper studies the causes of the failure.Analysis is performed to simulate the construction process and reasons for the failure arediscussed. |
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| Keywords: | curved beam failure prestress |
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