| 钢筋混凝土拱肋劲性骨架爬模施工分析 |
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| 引用本文： | 赵秋,吴冲,张磊. 钢筋混凝土拱肋劲性骨架爬模施工分析[J]. 计算机辅助工程, 2009, 18(4): 44-47 |
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| 作者姓名： | 赵秋 吴冲 张磊 |
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| 作者单位： | 1. 同济大学,桥梁工程系,上海,200092
2. 上海市政工程设计研究总院,上海,200092 |
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| 摘 要： | 以国内某主跨300 m的外倾式非对称系杆拱桥为例,采用三维有限元法分析靠拱脚段钢筋混凝土拱肋爬模施工过程中劲性骨架的受力状态. 为简化计算,从结构安全和满足桥梁施工要求出发,合理假定模板系统及劲性骨架的载荷分担率,将劲性骨架简化为空间杆系、载荷简化为节点载荷. 该方法计算模型简单、结果偏于安全,可用于类似结构的工程近似计算.
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| 关 键 词： | 钢筋混凝土拱肋 施工分析 拱桥 劲性骨架 爬模 |
| 收稿时间： | 2009-07-08 |
| 修稿时间： | 2009-09-23 |
Analysis of steel skeleton and climbing framework for construction of reinforced concrete arch rib |
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| Zhaoqiu,Wu Chong and -. Analysis of steel skeleton and climbing framework for construction of reinforced concrete arch rib[J]. Computer Aided Engineering, 2009, 18(4): 44-47 |
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| Authors: | Zhaoqiu Wu Chong - |
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| Affiliation: | Department of Bridge Engineering, Tongji University,Department of Bridge Engineering, Tongji University and - |
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| Abstract: | Based on an outward inclined asymmetric arch bridge with a main span of 300 m, the mechanic behavior of steel skeletons for construction of reinforced concrete arch rib was analyzed by 3D-FEM. In order to simplify the analysis, the load proportion on templets and skeletons was supposed from the viewpoint of structural safety and construction requirements of the bridge, and the skeletons were simulated by beam elements and loads on skeletons were simplified as concentrated loads. The analysis model is simple and results by the model are conservative. This method can be proposed for approximate engineering analysis of similar structures. |
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| Keywords: | reinforced concrete arch rib construction analysis arch bridge steel skeleton climbing framework |
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