| 薄壁空心板纵向裂缝的畸变分析与试验研究 |
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| 引用本文： | 邵旭东,周里鸣,李立峰.薄壁空心板纵向裂缝的畸变分析与试验研究[J].公路,2007(3):59-64. |
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| 作者姓名： | 邵旭东 周里鸣 李立峰 |
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| 作者单位： | 湖南大学桥梁工程研究所,长沙市,410082 |
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| 摘 要： | 针对某跨海大桥空心板板底出现有规律的纵向裂缝,运用薄壁结构理论对薄壁空心板进行畸变分析,结合能量法和有限条法计算活载作用下薄壁空心板的畸变应力,并对现行空心板标准图的畸变进行了验算,同时进行了现场荷载试验,理论分析结果和试验结果证明薄壁结构的畸变效应是导致空心板板底出现纵向裂缝的主要原因。
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| 关 键 词： | 薄壁空心板 畸变 能量法 弹性地基梁 有限条法 |
| 文章编号： | 0451-0712（2007）03-0059-06 |
| 修稿时间： | 2006-09-02 |
Distortion Analysis and Experimental Research on Longitudinal Cracks of Thin-Walled Hollow Slab |
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| SHAO Xu-dong,ZHOU Li-ming,LI Li-feng.Distortion Analysis and Experimental Research on Longitudinal Cracks of Thin-Walled Hollow Slab[J].Highway,2007(3):59-64. |
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| Authors: | SHAO Xu-dong ZHOU Li-ming LI Li-feng |
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| Institution: | Institute of Bridge Engineering, Hunan University, Changsha 410082, China |
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| Abstract: | The thin-walled structural theory is employed to investigate the regular longitudinal cracks of the thin-walled hollow slab of a sea-crossing bridge. The energy method and finite strip method are conducted to calculate the distortion stress of the hollow slab under live load,and the distortion analysis of the current standard hollow slab is also presented.The theoretical analysis and the field load tests verify that the distortion effect is the dominant reason causing the longitudinal cracks of the hollow slab bottom. |
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| Keywords: | thin-walled hollow slab distortion energy method beam on elastic foundation finite strip method |
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