混凝土斜拉桥肋板式主梁截面应力分布特性  

The study of the stress distribution characteristic on separated girder-plate section of prestressed concrete cable stayed bridge

作　　者：李德建[1] 戴公连[1] 黄玉盈[2] 

机构地区：[1]中南大学土木建筑学院 [2]华中科技大学土木工程与力学学院

出　　处：《华中科技大学学报（自然科学版）》2002年第12期107-110,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

摘　　要：结合湘潭市湘江三大桥主孔斜拉桥的设计与施工 ,采用 1∶3.2的比例缩尺进行了肋板式截面主梁节段模型试验研究及有限元分析 .探讨了在拉索力、预应力及桥面荷载作用下主梁截面局部及整体的应力分布规律 ,给出了轴力及弯矩作用下截面应力传递角度及有效分布宽度 ,为湘江三大桥的设计与施工提供了科学依据 .According to the design and construction of the third Xiangjiang river bridge in Xiangtan city of Hunan province, the finite element analysis and 1∶3.2 segmental model experiment were made. The results of effective flange width and stress distribution in separated girder plate section of prestressed concrete cable stayed bridge were presented It provides basis for the designer of the bridge and its constructor.

关 键 词：斜拉桥 肋板式主梁 有效计算宽度 模型试验 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]