摘要
根据某三跨连续刚构桥的悬臂施工过程，分析了悬臂施工节段预应力荷载产生的箱梁剪力滞效应以及关键截面剪力滞效应的变化规律。结果表明，在悬臂施工过程中，悬臂预应力束会对箱梁产生正负剪力滞效应，且负剪力滞效应较大。
According to the structure characters of a typical three-span pre-stressed concrete continuous rigid-frame box girder bridge with single cell, the shear lag of box girder bridge is analyzed in the process of cantilever cast-in-place construction, and changes of shear lag is researched under the load case of pre-stress. According to the results, the positive shear lag and minus shear lag occur in the process of cantilever cast-in-nlace construction.
出处
《河北交通职业技术学院学报》
2006年第4期55-57,69,共4页
Journal of Hebei Jiaotong Vocational and Technical College
关键词
悬臂施工
宽箱梁
剪力滞
预应力
cantilever cast-in-place
wide box-beam
shear lag
pre-stress
