京沈客运专线（109.8+170+170+90.8）mV撑连续梁设计

摘要

To across over Beijing-Chengde expressway and the interchange area of Airport North expressway, a (109. 8+170+170+90. 8) m V supporting continuous beam system is used in Wenyu River Bridge, a super large bridge located on Beijing-Shenyang dedicated passenger railway line. In this paper, the structural characteristics of the box girder and V support, the internal force analysis results, the prestressed system and dynamic analysis results are introduced, which provide references for the design of long-span structures of high-speed railway.%为实现京沈客运专线对京承高速公路与机场北高速互通区的跨越，京沈客运专线温榆河特大桥采用(109.8+170+170+90.8) m V撑连续梁结构体系。通过介绍温榆河特大桥V撑连续梁的工程概况及该箱梁与V撑构造特点、内力分析情况、预应力体系及钢束布设、动力分析的成果等，论证V撑连续梁方案的可行性，为高速铁路大跨结构的设计提供有益的参考。