| 马水河特大桥T形刚构桥设计 |
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| 引用本文： | 陈晓波.马水河特大桥T形刚构桥设计[J].桥梁建设,2011(3). |
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| 作者姓名： | 陈晓波 |
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| 作者单位： | 中铁第四勘察设计院集团有限公司,湖北武汉,430063 |
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| 摘 要： | 马水河特大桥为(116+116)m的大跨度T形刚构桥。主梁采用变截面预应力混凝土箱梁,单箱单室直腹板,箱梁顶宽10.7 m,梁底缘按圆弧变化。主墩高108 m,墩身采用矩形空心高墩,墩顶不设实体段,与梁部按空间框架形式相接,桩基采用24-2.5 m钢筋混凝土钻孔桩,混凝土强度等级为C30,在墩底设置7.5 m高的导流堤。分别采用BSAS和ANSYS对全桥进行结构静力计算及空间静力和动力分析。分析结果表明:该桥静力、抗风、抗震、车桥动力响应验算结果均满足规范要求。该桥主墩墩身采用后倾式悬臂模板法施工,主梁采用对称悬臂浇筑法施工。
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| 关 键 词： | 铁路桥 T形刚构桥 桥梁设计 结构分析 施工方法 有限元法 |
Design of T-Frame Bridge of Mashui River Bridge |
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| CHEN Xiao-bo.Design of T-Frame Bridge of Mashui River Bridge[J].Bridge Construction,2011(3). |
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| Authors: | CHEN Xiao-bo |
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| Institution: | CHEN Xiao-bo(China Railway Tiesiyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China) |
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| Abstract: | Mashui River Bridge is a long span T-frame bridge with span arrangement(116+116) m.The main girder of the bridge is a prestressed concrete girder of variable section,having a single cell single box and vertical webs.The top of the girder is 10.7 m in width and the bottom varies in round arc.The main pier of the bridge is 108 m high and the pier shaft is the high-rise rectangular hollow pier that has no solid section close to the top of the pier and is connected with the girder in a way of spatial frame.The ... |
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| Keywords: | railway bridge T-frame bridge bridge design structural analysis construction method finite element method |
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