| 桂林市南洲大桥组合梁徐变效应分析 |
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| 引用本文： | 陈斌,申玲,刘方成.桂林市南洲大桥组合梁徐变效应分析[J].福建建筑,2011(5):92-94. |
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| 作者姓名： | 陈斌 申玲 刘方成 |
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| 作者单位： | 湖南工业大学; |
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| 摘 要： | 钢—混凝土组合梁是由两种性质不同的材料结合所组成的一个整体,由于混凝土的徐变受到钢梁的约束,必然会使组合梁截面产生应力重分布及内力重分布,这种重分布会对组合梁的长期变形产生影响。本文采用有限元软件MIDAS对桂林市南洲大桥组合梁进行了徐变计算。徐变对组合梁应力的影响随时间的增长逐渐递增,但徐变影响速度逐渐减慢;钢梁上缘...
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| 关 键 词： | 南洲大桥 组合梁 徐变 应力重分布 |
Analysis of creep in composite beams of Nanzhou bridge in Guilin city |
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| Chen Bin Shen Ling Liu Fangcheng.Analysis of creep in composite beams of Nanzhou bridge in Guilin city[J].Fujian Architecture & Construction,2011(5):92-94. |
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| Authors: | Chen Bin Shen Ling Liu Fangcheng |
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| Affiliation: | Chen Bin Shen Ling Liu Fangcheng(Hunan University of Technology Zhuzhou 410007) |
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| Abstract: | The steel and concrete composite beams are made up of two diffirent material slabs working together.Because of restraining concrete creep by steel,the composite beam makes stress-redistribution and endogenetic force-redistribution,which effect its long-term deformation.This text analysis the creep of composite beam of Nanzhou bridge in Guilin city by MIDAS.The effect of creep to stress of the composite beam increases gradually,but the rate reduces.It makes the stress of steel beam increasing and the stress ... |
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| Keywords: | Nanzhou bridge Composite beam Creep Stress redistribution |
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