（1 南京工业大学土木工程学院， 南京 211816； 2 扬州市振东电力器材有限公司， 扬州 225267）

［摘要］高铁跨越架是一种能迅速搭建的跨越高速铁路的金属支架体。目前，高速铁路跨越施工尚无国家或行业规范，设计时无标准可遵循。以某高铁跨越架结构为背景，对跨越架结构设计中存在的若干关键问题进行深入研究。讨论了高铁跨越架分析中风荷载计算方法，给出了断线荷载模拟建议，并对现有跨越架的整体稳定分析方法进行研究，提出一种简便的计算方法。研究内容可为送电线路安全、高效地跨越高速铁路提供技术保证。

［关键词］高铁跨越架； 风荷载； 断线荷载； 稳定分析； 设计建议

中图分类号：TM726-3文献标识码：A文章编号：1002-848X(2016)14-0046-04

Research on key problems in analysis of crossing frame structure for high-speed railway

Wang Yuhua1， Zhen Dong1， Tong Feifei1， Peng Yang1， Xu Zhongren2， Dong Jun1

(1 College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China;2 Yangzhou Zhendong Power Device & Tools Co.,  Ltd.,  Yangzhou 225267, China)

Abstract:The crossing frame structure for high-speed railway is a kind of metal frame which can be quickly assembled to cross the high-speed railway. Currently, for the high-speed railway crossing construction, there are no national or industrial standards to follow in design. Taking a crossing frame structure for high-speed railway as the background, several key problems in the design of the crossing frame structures were investigated. Wind load calculating method in analysis of crossing frame structure for high-speed railway was discussed and recommendations on simulation of broken wire load were provided. Overall stability analysis method for current crossing frame structure was studied and a simplified calculating method was given. Research contents can provide technical insurance for safe and highly efficient crossing of transmission line over high-speed railway.

Keywords:crossing frame structure for high-speed railway; wind load; broken wire load; stability analysis; design recommendation

通讯作者：董军，教授，博士生导师，Email：dongjun@njtech.edu.cn。