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| 漳州战备大桥极限承载能力分析 | |
| 引用本文： | 郑一峰,黄侨,何红丽,张连振.漳州战备大桥极限承载能力分析[J].公路交通科技,2010,27(2). |
| 作者姓名： | 郑一峰 黄侨 何红丽 张连振 |
| 作者单位： | 1. 吉林大学,建设工程学院,吉林,长春,130026 2. 哈尔滨工业大学,交通学院,黑龙江,哈尔滨,150090 3. 沈阳市政工程设计研究院,辽宁,沈阳,110015 |
| 摘 要： | 为深入研究部分斜拉桥的极限承载能力,以国内第1座已建混凝土部分斜拉桥——漳州战备大桥为例,对其进行极限承载能力分析。运用ANSYS有限元分析软件,采用基于非线性连续介质力学理论的全过程分析方法,假定混凝土为理想的弹塑性材料,采用Drucker-prager屈服准则,钢筋为多线性等向强化材料,采用Mises屈服准则,建立了有限元U.L.列式的几何非线性与材料非线性耦合空间分析模型。分析结果表明:当活载系数λ3时,部分斜拉桥结构的非线性特征不明显。部分斜拉桥达到极限承载力时,其破坏模式属材料强度达极限状态这种类型,此时结构还未出现极值点失稳现象。决定其极限承载力的主要因素是混凝土材料非线性。中跨布载时结构极限承载力最小,活载系数λ=7.8,极限安全系数k=1.78。 |
| 关 键 词： | 桥梁工程 极限承载力 数值分析 部分斜拉桥 几何非线性 材料非线性 |
Analysis on Ultimate Load Bearing Capacity of Zhangzhou Combat Readiness Bridge |
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| ZHENG Yifeng,HUANG Qiao,HE Hongli,ZHANG Lianzhen.Analysis on Ultimate Load Bearing Capacity of Zhangzhou Combat Readiness Bridge[J].Journal of Highway and Transportation Research and Development,2010,27(2). | |
| Authors: | ZHENG Yifeng HUANG Qiao HE Hongli ZHANG Lianzhen |
| Institution: | 1.College of Construction Engineering;Jilin University;Changchun Jilin 130026;China;2.School of Transportation Science and Engineering;Harbin Institute of Technology;Harbin Heilongjiang 150090;3.Shenyang Municipal Engineering Design and Research Institute;Shenyang Liaoning 110015;China |
| Abstract: | Partially cable-stayed bridge is a new kind of bridge lies in between continuous beam bridge and cable-stayed bridge.Zhangzhou Combat Readiness Bridge,the first concrete partially cable-stayed bridge in China,was chosen to analyze the ultimate bearing capacity of partially cable-stayed bridge.The material of concrete and steel was supposed to be an ideal elastic-plastic material and multi-linear isotropic hardening material which adopt Drucker-prager and Mises yield criterion separately.The UL formula consi... |
| Keywords: | bridge engineering ultimate bearing capacity numerical analysis partially cable-stayed bridge geometrical nonlinearity material nonlinearity |
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