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（1 南京工業(yè)大學(xué)土木工程學(xué)院， 南京 211816； 2 揚(yáng)州市振東電力器材有限公司， 揚(yáng)州 225267）

［摘要］高鐵跨越架是一種能迅速搭建的跨越高速鐵路的金屬支架體。目前，高速鐵路跨越施工尚無(wú)國(guó)家或行業(yè)規(guī)范，設(shè)計(jì)時(shí)無(wú)標(biāo)準(zhǔn)可遵循。以某高鐵跨越架結(jié)構(gòu)為背景，對(duì)跨越架結(jié)構(gòu)設(shè)計(jì)中存在的若干關(guān)鍵問(wèn)題進(jìn)行深入研究。討論了高鐵跨越架分析中風(fēng)荷載計(jì)算方法，給出了斷線荷載模擬建議，并對(duì)現(xiàn)有跨越架的整體穩(wěn)定分析方法進(jìn)行研究，提出一種簡(jiǎn)便的計(jì)算方法。研究?jī)?nèi)容可為送電線路安全、高效地跨越高速鐵路提供技術(shù)保證。

［關(guān)鍵詞］高鐵跨越架； 風(fēng)荷載； 斷線荷載； 穩(wěn)定分析； 設(shè)計(jì)建議

中圖分類號(hào)：TM726-3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

通訊作者：董軍，教授，博士生導(dǎo)師，Email：dongjun@njtech.edu.cn。