| 施工支架施工过程模拟和横向分布系数计算 |
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| 引用本文： | 谭毅平,练小芳. 施工支架施工过程模拟和横向分布系数计算[J]. 科学技术与工程, 2009, 9(3) |
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| 作者姓名： | 谭毅平 练小芳 |
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| 作者单位： | 广州市计量检测技术研究院,广州,510663;广州棉中建设工程信息咨询有限公司,广州,510507 |
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| 摘 要： | 以南江大桥为工程背景,建立平面杆系模型,分别计算施工支架分四个施工阶段施工和一个阶段施工的内力.然后建立桥墩和箱梁混凝土实体模型,施工支架用桁架单元模拟,分析施工支架的荷载横向分布系数.研究结果表明,不考虑施工过程的影响,得到支架的计算结果误差约为13 %,当箱梁腹板的重心偏向支架外侧,且支架的荷载横向联系的刚度较弱时,应考虑横向分布系数的影响.
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| 关 键 词： | 桥梁工程 施工支架 平面杆系模型 实体模型 |
Simulating Construction Stage and Calculating Transverse Load Distribution of Construction Frame |
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| TAN Yi-ping,LIAN Xiao-fang. Simulating Construction Stage and Calculating Transverse Load Distribution of Construction Frame[J]. Science Technology and Engineering, 2009, 9(3) |
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| Authors: | TAN Yi-ping LIAN Xiao-fang |
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| Affiliation: | Guangzhou Institute of Measurement and Testing;Guangzhou 510663;P.R.China;Guangzhou Mianzhong Construction Engineering Consultation Co. Ltd1.;Guangzhou 510507;P.R.China |
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| Abstract: | Inner force of construction frame is calculated using plane frame model, taking Nanjiang Bridge as engineering background. The construction stage is divided separately into 4 and 1. Concrete pier and concrete box girder is simulated by using solid model, and transverse load distribution of construction frame is calculated by beam element and link element. The research results indicate that the numerical results errors of construction frame are about 13 % if construction stage is ignored. Transverse load dis... |
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| Keywords: | bridge engineering construction frame plane frame model solid model |
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