京沪高速铁路(京徐段)跨线桥梁设计概述

京沪高速铁路(京徐段)多次跨越既有铁路,跨越既有线桥涵设计是京沪高速铁路桥梁设计的重要节点。通过对上跨大李联络线及预留复线、京山四线及西黄左线、两个津浦单线、津浦双线等四处跨线桥梁工点介绍,针对不同的既有线现状情况,总结出跨越既有线桥涵设计的常用结构形式为:空间刚架、悬浇连续梁、基础斜置简支梁及转体施工连续梁。

Design of Bridges Crossing Existing Railway on Beijing-Shanghai High Speed Railway(Beijing-Xuzhou section)

Beijing- Shanghai high-speed railway( Beijing ~ Xuzhou section) crosses the existing railway several times,the design of the crossing bridges is an important node in the design of Beijing-Shanghai high-speed railway. With reference to the four crossing bridges,such as the bridge crossing Da ~ Li linking line and reserved double-track,the bridge crossing Jing ~ Shan four line and Xi Huang left line,the bridge crossing two singe ling of Jin ~Pu,and the bridge crossing the double line of Jin ~ Pu,the common structure types of bridges crossing the existing lines are summed as: spatial rigid frame,continuous beam with suspended casting,simply supported beam with skew foundation and continuous beam with swing construction according to different situations of existing lines,