摘要
鉴于国内既有大跨度连续刚构桥出现诸多病害的现状,以东江南特大桥为例,通过对边中跨比优化、主墩双肢开叉、竖向预应力优化、顶推力的施加等问题进行探讨,并将成果应用于设计当中,为大跨连续刚构桥的优化设计提供了依据。
In view of the present situation of some diseases appeared of the existing long-span continuous rigid frame bridge in China, take south dong river bridge for example, through the analysis of these problems, such as ratio optimization between side span and mid span, the main pier double amputation with a hole, optimization of vertical pressure, imposing on jacking force, etc. , and the results which can provide basis for the optimization design of the large-span continuous rigid frame bridge applied to the design.
出处
《山西建筑》
2008年第25期324-325,共2页
Shanxi Architecture
关键词
连续刚构桥
边中跨比
双肢开叉
顶推力
continuous rigid frame bridge, ratio optimization between side span and mid span, double amputation with a hole, jacking force
