| 四肢格构型钢管混凝土截面计算模式研究 |
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| 引用本文： | 周水兴,龚成立,张敏.四肢格构型钢管混凝土截面计算模式研究[J].重庆交通大学学报(自然科学版),2009,28(5):833-836. |
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| 作者姓名： | 周水兴 龚成立 张敏 |
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| 作者单位： | 1. 重庆交通大学,土木建筑学院,重庆,400074
2. 重庆市巫山县公路技术管理所,重庆,404700 |
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| 摘 要： | 四肢格构型截面是大跨度钢管混凝土拱桥常用的截面型式,在具体构造上有缀板式和缀条式2种。着重研究了缀板式格构型截面的计算模式,提出板单元法和空间梁单元法2种计算模式,推导了板单元等效厚度计算公式,并介绍了空间梁单元法的建模要点。最后通过一个工程实例分析,表明2种计算模式都能满足工程计算精度要求,在具体应用上板单元法更为方便。
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| 关 键 词： | 四肢格构型截面 钢管混凝土 计算模式 板单元法 空间梁单元法 |
Investigation on Calculation Pattern for 4-Limb Latticed CFST Section |
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| ZHOU Shui-xing,GONG Cheng-li,ZHANG Min.Investigation on Calculation Pattern for 4-Limb Latticed CFST Section[J].Journal of Chongqing Jiaotong University,2009,28(5):833-836. |
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| Authors: | ZHOU Shui-xing GONG Cheng-li ZHANG Min |
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| Institution: | ZHOU Shui-xing1,GONG Cheng-li2,ZHANG Min1(1.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China,2.Highway Technology & Management Station of Wushan County,Chongqing Wushan 404700,China) |
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| Abstract: | 4-limb latticed section is a common section type of large-span concrete filled steel tubular arch bridges.There are two types in terms of the specific structure,including the battened plate structure and laced-bar structure.The calculation pattern of battened plate section is focused.The plate element and spatial beam element are put forward,and the formula of equivalent thickness for plate element is deduced.Key points of modeling with spatial beam element are also introduced.A case study is carried out to... |
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| Keywords: | 4-limb latticed section concrete filled steel tubular(CFST) calculation pattern plate element spatial beam element |
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