京沪高速铁路(京徐段)跨线桥梁设计概述

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

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。

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.