刚架拱桥大小节点的安全性分析 |
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引用本文: | 姚良云,陈燊. 刚架拱桥大小节点的安全性分析[J]. 福建建设科技, 2012, 0(4): 79-81 |
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作者姓名: | 姚良云 陈燊 |
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作者单位: | 1. 福州大学土木工程学院,福州350108 福建农林大学交通学院,福州350002 2. 福州大学土木工程学院,福州,350108 |
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基金项目: | 福建农林大学青年基金项目 |
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摘 要: | 本文根据刚架拱桥结构的受力特性和构件本身存在的缺陷,通过取出MIDAS/Civil建立的全桥模型计算出来的大、小节点处的最不利内力组合,施加于ANSYS模型中,对刚架拱桥大小节点处的破坏进行安全分析,计算分析发现大、小节点在该内力作用下上缘均出现了较大的应力,分析结果为大小节点的加固提供参考。
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关 键 词: | 刚架拱桥 大节点 小节点 安全性分析 |
Security Analysis of Big and Small Rigid Joints in the Framed Arch Bridge |
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Affiliation: | Yao Liangyun et al |
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Abstract: | Base on the framed arch bridge mechanical behavior and component structure defects,firstly a solid model of big and small node by means of ANSYS program is established and the worst-case internal force combination calculated by MIDAS/Civil model is applied to the ANSYS model.The analysis has found that the tensile stress of the top flange is very big,which can serve as a reference for reinforcement of the big and small rigid joints. |
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Keywords: | framed arch bridge big rigid joints small rigid joints security analysis |
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