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| 重庆长江大桥复线桥主跨钢—砼接头内力组合分析 | |
| 引用本文： | 王俊如,郑罡,代彤.重庆长江大桥复线桥主跨钢—砼接头内力组合分析[J].国防交通工程与技术,2008,6(6). |
| 作者姓名： | 王俊如 郑罡 代彤 |
| 作者单位： | 1. 重庆城建控股(集团)有限责任公司,重庆,400015 2. 重庆交通科研设计院,重庆,400067 3. 林同棪国际(重庆)工程咨询有限公司,重庆,400027 |
| 摘 要： | 重庆长江大桥复线桥主跨中间108m采用钢箱梁结构，两端为混凝土梁，钢梁和混凝土梁采用钢-砼节段组合结构，在连续刚构桥中首次实现330m的跨径。着重介绍了钢-砼接头内力组合的过程，分析研究认为：在新老规范交替过程中，荷载组合过程中采用新规范未必偏于保守；对规范中未明确规定的体外预应力力学效应，可按永久荷载进行组合。研究成果对同类结构的设计和研究有一定的参考价值。 |
| 关 键 词： | 钢-砼接头 连续刚构 内力组合 使用极限状态 承载能力极限状态 |
An Analysis of the Combined Internal Forces of the Steel-Concrete Joints of the Main Span of the Chongqing Yangzhe River Bridge of the Double-tracking Railways |
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| Wang Junru,Zheng Gang,Dai Tong.An Analysis of the Combined Internal Forces of the Steel-Concrete Joints of the Main Span of the Chongqing Yangzhe River Bridge of the Double-tracking Railways[J].Traffic Engineering and Technology for National Defence,2008,6(6). | |
| Authors: | Wang Junru Zheng Gang Dai Tong |
| Institution: | Wang Junru1,Zheng Gang2,Dai Tong3 (1.Chongqing Municipal Construction Co.Ltd.,Chongqing 400015,2.Congqing Design , Research Institute of Traffic Science , Technology,Chongqing 400067,3.Liu Tong-yan Consultative Co.Ltd.(Chongqing) of International Engineering,Chongqing 400027) |
| Abstract: | The 108m mid-span of the Chongqing Double-tracking Railway Yangtze River Bridge is made up of steel box girders,at both ends of which concrete beams are adopted.The steel box girder and the concrete beams are joined with steel-concrete joints,which help realise the spanning distance of 330m in a continuous rigid structure bridge.The combining process of the internal forces of the joints is dealt with in the paper.Our analysis and study show that in the transitional period from the old norm to the new norm,t... |
| Keywords: | steel-concrete joint continuous rigid structure combination of internal forces ultimate using state ultimate bearing capability state |
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