| 基于梁格理论的扁壳桥结构空间效应分析 |
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| 引用本文： | 武维宏,舒春生,吴亚平.基于梁格理论的扁壳桥结构空间效应分析[J].兰州理工大学学报,2008,34(5). |
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| 作者姓名： | 武维宏 舒春生 吴亚平 |
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| 作者单位： | 1. 甘肃省交通规划勘察设计院有限责任公司,甘肃,兰州,730030
2. 兰州交通大学,土木工程学院,甘肃,兰州,730070 |
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| 摘 要： | 提出一套便于工程技术人员使用的扁壳桥结构空间分析与计算方法.引入壳体基本微分方程,推导出扁壳结构的等效刚度系数及梁格分析的截面特性,利用有限元程序直接计算壳体内力,根据程序计算结果进行承载力检算,提高扁壳桥结构分析的工作效率.研究结果表明,扁壳结构可以采用梁格法进行空间效应分析;与板壳法相比,梁格法计算效率高,且精度满足工程需求.
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| 关 键 词： | 扁壳桥 空间效应 梁格法 |
Spatial effect analysis of flat shell bridge structure based on beam-grid theory |
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| WU Wei-hong,SHU Chun-sheng,WU Ya-ping.Spatial effect analysis of flat shell bridge structure based on beam-grid theory[J].Journal of Lanzhou University of Technology,2008,34(5). |
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| Authors: | WU Wei-hong SHU Chun-sheng WU Ya-ping |
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| Institution: | WU Wei-hong1,SHU Chun-sheng1,WU Ya-ping2(1.Gansu Province Transportation Planning,Survey & Design Institute Co Ltd,Lanzhou 730030,2.College of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China) |
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| Abstract: | A set of spatial analysis and calculation method of flat shell bridges was presented which was easy to use for common engineers.A basic differential equation of the shell was introduced.The equivalent stiffness of the shell structure and beam cross-section characteristics for beam-grid analysis were derived.The shell internal force was directly evaluated by using a finite element program,and the checking of the bearing capacity was conducted accordiong to its results,so that the efficiency of analysis of th... |
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| Keywords: | flat shell bridge spatial effect beam grillage method |
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