| 大跨预应力连续刚构桥施工阶段合理预拱度分析 |
| |
| 引用本文： | 师贞艳,孙光文,吴俊锋,朱华锋. 大跨预应力连续刚构桥施工阶段合理预拱度分析[J]. 国外建材科技, 2014, 0(5) |
| |
| 作者姓名： | 师贞艳 孙光文 吴俊锋 朱华锋 |
| |
| 作者单位： | 竹山县公路管理局,竹山,442200 |
| |
| 摘 要： | 针对高墩预应力连续刚构桥施工过程中合理预拱度的设置问题,从预拱度控制理论对预拱度的设置进行了分析,并分析了桥墩刚度、材料性能、施工因素、预应力损失及环境温度因素对施工预拱度的影响,最后以在建的新码头大桥为工程实例进行了施工阶段预拱度的求解,给出了合理预拱度,桥梁顺利合拢且合拢误差在容许范围内,大桥成桥标高略高于设计标高,对后期运营期行车及收缩徐变下跨中下挠形成一定的储备。
|
| 关 键 词： | 预应力 连续刚构桥 施工阶段 预拱度 |
Reasonable Prefabricated Camber Analysis of Construction Stage of Large Span Prestressed Concrete Continuous Rigid Frame Bridge |
| |
| SHI Zhen-yan,SUN Guang-wen,WU Jun-feng,ZHU Hua-feng. Reasonable Prefabricated Camber Analysis of Construction Stage of Large Span Prestressed Concrete Continuous Rigid Frame Bridge[J]. Science and Technology of Overseas Building Materials, 2014, 0(5) |
| |
| Authors: | SHI Zhen-yan SUN Guang-wen WU Jun-feng ZHU Hua-feng |
| |
| Abstract: | |
| |
| Keywords: | prestressed continuous rigid frame bridge construction stage prefabricated camber |
|
|
