| Approach for analyzing the ultimate strength of concrete filled steel tubular arch bridges with stiffening girder |
| |
| 引用本文： | ZHANG Zhi-cheng XIE Xu ZHANG He CHEN Heng-zhi. Approach for analyzing the ultimate strength of concrete filled steel tubular arch bridges with stiffening girder[J]. 浙江大学学报(A卷英文版), 2007, 8(5): 682-692. DOI: 10.1631/jzus.2007.A0682 |
| |
| 作者姓名： | ZHANG Zhi-cheng XIE Xu ZHANG He CHEN Heng-zhi |
| |
| 作者单位： | Department of Civil Engineering，Zhejiang University，Hangzhou 310027，China |
| |
| 摘 要： | A convenient approach is proposed for analyzing the ultimate load carrying capacity of concrete filled steel tubular (CFST) arch bridge with stiffening girders. A fiber model beam element is specially used to simulate the stiffening girder and CFST arch rib. The geometric nonlinearity, material nonlinearity, influence of the construction process and the contribution of prestressing reinforcement are all taken into consideration. The accuracy of this method is validated by comparing its results with experimental results. Finally, the ultimate strength of an abnormal CFST arch bridge with stiffening girders is investigated and the effect of construction method is discussed. It is concluded that the construction process has little effect on the ultimate strength of the bridge.
|
| 关 键 词： | 钢管混凝土拱桥 刚性桁架 极限强度 分析方法 |
| 收稿时间： | 2006-11-02 |
| 修稿时间： | 2007-01-18 |
Approach for analyzing the ultimate strength of concrete filled steel tubular arch bridges with stiffening girder |
| |
| Zhang Zhi-cheng,Xie Xu,Zhang He,Chen Heng-zhi. Approach for analyzing the ultimate strength of concrete filled steel tubular arch bridges with stiffening girder[J]. Journal of Zhejiang University Science, 2007, 8(5): 682-692. DOI: 10.1631/jzus.2007.A0682 |
| |
| Authors: | Zhang Zhi-cheng Xie Xu Zhang He Chen Heng-zhi |
| |
| Affiliation: | (1) Department of Civil Engineering, Zhejiang University, Hangzhou, 310027, China |
| |
| Abstract: | A convenient approach is proposed for analyzing the ultimate load carrying capacity of concrete filled steel tubular(CFST) arch bridge with stiffening girders. A fiber model beam element is specially used to simulate the stiffening girder and CFST arch rib. The geometric nonlinearity,material nonlinearity,influence of the construction process and the contribution of prestressing reinforcement are all taken into consideration. The accuracy of this method is validated by comparing its results with experimental results. Finally,the ultimate strength of an abnormal CFST arch bridge with stiffening girders is investigated and the effect of construction method is discussed. It is concluded that the construction process has little effect on the ultimate strength of the bridge. |
| |
| Keywords: | Ultimate strength Concrete filled steel tubular (CFST) arch bridge Stiffening girder Fiber model beam element Construction process |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ |
