| 混合钢梁桥初步研究 |
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| 引用本文： | 娄廷会.混合钢梁桥初步研究[J].中南公路工程,2010(1):37-41,50. |
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| 作者姓名： | 娄廷会 |
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| 作者单位： | 同济大学; |
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| 摘 要： | 介绍了混合钢梁的概念及在国内外的研究状况，描述了混合钢梁各阶段的受力特征，提出了对应的弯矩表达式。研究了腹板屈服强度的影响，得到了合理的腹板、翼缘板屈服强度比。推导了混合钢梁弹塑性变形计算公式，分析了弹塑性变形和残余变形的大小，指出可以按照普通钢梁计算混合钢梁挠度，卸载后残余变形可忽略不计。分析了混合钢梁桥的经济性，表明有显著的经济效益。
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| 关 键 词： | 桥梁 混合 钢梁 强度比 弹塑性变形 残余变形 经济 |
Preliminary Study of Hybrid Steel Girder Bridges |
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| LOU Tinghui.Preliminary Study of Hybrid Steel Girder Bridges[J].Central South Highway Engineering,2010(1):37-41,50. |
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| Authors: | LOU Tinghui |
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| Institution: | LOU Tinghui(Tongji University,Shanghai 200092,China) |
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| Abstract: | This paper has conducted the preliminary study to hybrid steel girder bridges.Firstly,concept of hybrid girder and research situation at home and abroad were introduced.Secondly,the moment expressions corresponding to the mechanical performance of the hybrid girder at various stages,and a rational ratio of web-flange yield strength considering the effect of web yield strength,were proposed.Thirdly,formulae for calculating the elastic-plastic deformation of hybrid girders were derived.An extensive analysis r... |
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| Keywords: | bridge hybrid steel girder strength ratio elastic-plastic deformation residual deformation economical |
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