| 某连续箱梁桥现浇段锚下局部应力分析 |
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| 引用本文： | 王友中,贾鹏飞. 某连续箱梁桥现浇段锚下局部应力分析[J]. 现代交通技术, 2010, 7(3): 45-47 |
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| 作者姓名： | 王友中 贾鹏飞 |
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| 作者单位： | 1. 江苏省高速公路经营管理中心宁通高速公路管理处,江苏,泰州,225403
2. 江苏省交通科学研究院股份有限公司,江苏,南京,210017 |
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| 摘 要： | 针对某大跨度预应力混凝土连续箱梁桥在施工阶段出现边跨支点附近底板＂八字形＂裂缝情况,采用通用有限元分析软件ANSYS9.0对该桥边跨现浇段进行锚下局部应力计算分析。分析结果表明,过大的边跨底板纵向预应力可能是造成开裂的主要原因。
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| 关 键 词： | 连续箱梁桥 开裂 有限元 局部应力 |
Analysis of Local Stress under the Anchorage of a Box Girder Bridge Casted Spans |
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| Wang Youzhong,Jia Pengfei. Analysis of Local Stress under the Anchorage of a Box Girder Bridge Casted Spans[J]. Modern Transportation Technology, 2010, 7(3): 45-47 |
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| Authors: | Wang Youzhong Jia Pengfei |
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| Affiliation: | 1.Expressway Management Center of Jiangsu Expressway Ningtong Expressway Management Department, Taizhou 225403, China; 2.Jiangsu Transportation Resarch Institute, Nanjing 210017, China) |
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| Abstract: | In view of the bottom slab crack in side spans of a large span P.C. continuous box girder bridge occurred in the construction,the common finite element ANSYS9.0 software is used for analyzing the local stress under the anchorage of this bridge in casted side spans.Results of the analysis show that vertical side spans prestressed in bottom slab is the main reason that causing cracking. |
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| Keywords: | continuous box girder bridge cracking finite elemem local stress |
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