| 某斜拉桥材料非线性静力分析 |
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| 引用本文： | 王克峰,李辉,张来勇.某斜拉桥材料非线性静力分析[J].低温建筑技术,2010,32(10):49-51. |
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| 作者姓名： | 王克峰 李辉 张来勇 |
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| 作者单位： | 宁波大学建筑工程与环境学院,浙江宁波315211 |
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| 摘 要： | 使用截面分层法计算斜拉桥混凝土主梁在不同轴力下的弯矩-曲率曲线。并使用有限元杆系模型的塑性铰方法对某主跨为140m的斜拉桥进行材料非线性分析,并将非线性分析与线性分析进行对比。发现材料非线性对个别拉索索力影响达到84%。建议进行斜拉桥设计时计入材料非线性影响。
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| 关 键 词： | 斜拉桥 材料非线性 弯矩-率曲 |
MATERIAL NONLINEAR STATIC ANALYSIS OF A CABLE-STAYED BRIDGE |
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| WANG Ke-feng,LI Hui,ZHANG Lai-yong.MATERIAL NONLINEAR STATIC ANALYSIS OF A CABLE-STAYED BRIDGE[J].Low Temperature Architecture Technology,2010,32(10):49-51. |
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| Authors: | WANG Ke-feng LI Hui ZHANG Lai-yong |
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| Affiliation: | (Faculty of Architectural,Civil Engineering and Environment of Ningbo University,Zhejiang Ningbo 315211,China) |
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| Abstract: | By dividing the cross-section into stratum,this paper calculated the Moment-Curvature graphics of the concrete girder which is under different axis force.In the paper,a bar-system FEM model of a 140m span cable-stayed bridge was built,and material nonlinear analysis was undertaken with plastic-hinge method being used.It was found that the effect of material nonlinearity reached 84%.Material nonlinearity should be calculated in the engineering of cable-stayed bridge.It was found that the effect of material nonlinearity reached 84%.Material nonlinearity should be calculated in the engineering of cable-stayed bridge. |
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| Keywords: | cable-stayed bridge material nonlinearity moment-curvature |
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