| 石砌U型高桥台破坏机理及加固改进对策研究 |
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| 引用本文： | 董倩,王成,魏世宏.石砌U型高桥台破坏机理及加固改进对策研究[J].中南公路工程,2007,32(4):49-52,141. |
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| 作者姓名： | 董倩 王成 魏世宏 |
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| 作者单位： | 重庆科技学院 重庆400042(董倩，魏世宏)，重庆交通大学 重庆400074(王成) |
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| 基金项目： | 重庆市交通委员会科研项目 |
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| 摘 要： | 石砌U型高桥台是西部山区公路建设中广泛采用的结构形式,也是一个受力复杂的砌体结构,在填土荷载和车辆荷载作用下经常发生局部开裂破坏,其破坏机理尚不清楚,为了研究其破坏机理并解决局部开裂破坏问题,本文采用常规U型桥台及钢筋混凝土圈梁及倒角加固改进后的10∶1模型进行试验研究,并进行了三维有限元分析。通过试验及计算结果,基本摸清了其破坏机理,并验证所采用的改进方法简单可靠。
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| 关 键 词： | 石砌U型高桥台 模型试验 有限元分析 破坏机理 加固改进措施 |
| 文章编号： | 1002-1205（2007）04-0049-04 |
| 收稿时间： | 2006-10-18 |
| 修稿时间： | 2006-10-18 |
Study of destruction mechanism of high masonry U-shaped abutment and improved methods |
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| DONG Qian, WANG Cheng, WEI Shihong.Study of destruction mechanism of high masonry U-shaped abutment and improved methods[J].Central South Highway Engineering,2007,32(4):49-52,141. |
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| Authors: | DONG Qian WANG Cheng WEI Shihong |
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| Abstract: | Masonry U-shaped high abutment is a widely adopted construct form.The parts cracks often occur following by the effect of earth pressure and vehicle loading,and the destruction mechanism was unknown.In order to research the destruction mechanism and solve the parts cracks problem,the strength and stability of the un-reinforced U-shaped abutment and reinforced U-shaped abutment was analyzed by model testing and finite element method simulation.As a result,the destruction mechanism is clear on the whole,and improved measure is proved simply and credibly. |
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| Keywords: | shaped high abutment model testing 3D finite element numerical simulation destruction mechanism improved measure |
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