| 大跨连续刚构宽幅梁桥施工技术特性分析 |
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| 引用本文： | 刘志峰,陈小勇.大跨连续刚构宽幅梁桥施工技术特性分析[J].现代交通技术,2011,8(1):61-63. |
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| 作者姓名： | 刘志峰 陈小勇 |
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| 作者单位： | 1. 山东潍坊滨海经济开发区交通局,山东,潍坊,262737
2. 四川雅西高速公路有限责任公司,四川,成都,610041 |
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| 摘 要： | 以一座双线铁路大跨预应力连续刚构宽幅梁桥为工程背景,针对该桥先中跨合龙再边跨合龙的施工方式,运用有限元软件对该桥的施工过程进行模拟计算分析,研究其施工阶段和成桥状态的受力特性。由计算可知,该桥的截面选择和预应力筋布置合理,施工过程安全。
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| 关 键 词： | 连续刚构桥 有限元 施工控制 空间分析 |
Construction Characteristic Analysis on Continuous Rigid Frame Bridge with Long Span and Wide Girder |
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| Liu Zhifeng,Chen Xiaoyong.Construction Characteristic Analysis on Continuous Rigid Frame Bridge with Long Span and Wide Girder[J].Modern Transportation Technology,2011,8(1):61-63. |
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| Authors: | Liu Zhifeng Chen Xiaoyong |
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| Institution: | Liu Zhifeng1,Chen Xiaoyong2(1.Communications Bureau of Binhai Economic Development Area of Shandong Weifang,Weifang 262737,China,2.Sichuan Yaxi Expressway Ltd.,Chengdu 610041,China) |
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| Abstract: | Taking a double-track railways wide continuous rigid-frame structure of large span prestressed girder as research background,according to the construction way of mid-span closure firstly and side-span closure secondly,this paper analyses the bridge construction process using finite element software MIDAS/Civil,and analyses the stress characteristic of each construction phase.The calculation results show that section choice and prestressing tendon arrangement are reasonable,construction process is safe. |
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| Keywords: | continuous rigid frame bridge finite element construction control three dimensional analysis |
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