摘要
以哈尔滨松北某斜交桥方案为例,对斜交桥在竖向荷载下的平转扭曲现象进行分析。通过不同刚度下平转趋势的对比,探索此种现象的影响因素。研究结果表明:在常规竖向荷载带来结构翘曲变形的同时,斜交桥梁仍会受桥梁纵横向刚度大小及比例的影响,各自产生相应的平转效应,为斜交桥梁的设计提供参考。
Taking a skew bridge design plan in Songbei of Harbin for example, it was analysed the phenomenon of flat turn and torsion under vertical load. Several influencing factors were researched by comparing the turning trend with different stiffness. The results shows that with the warpage of the structure under common vertical load, skew bridges will generate corresponding effect of flat turn that influenced by the value and proportion of longitudinal and transverse stiffness, which provides a certain degree of reference for the design and construction of skew bridges.
出处
《钢结构》
2013年第8期24-27,共4页
Steel Construction
关键词
斜交桥梁
纵横向刚度
平转扭曲
skew bridges
longitudinal and transverse stiffness
flat turn and distortion
