自锚式悬索桥猫道架设对主塔的影响分析  

Analysisof the Influence of Catwalk Erection on Main Tower of Self-anchored Suspension Bridge

作　　者：岳云龙 Yue Yunlong(Shenyang Municipal Engineering Design and Research Institute Co.,Ltd.,Shenyang 110015,China)

机构地区：[1]沈阳市市政工程设计研究院有限公司,沈阳市110015

出　　处：《北方交通》2021年第2期9-13,共5页Northern Communications

摘　　要：沈阳市东塔跨浑河桥工程缆索系统施工时,猫道上端锚固在格构式桥塔上端的鞍罩上,猫道施工时桥塔缀件未进行焊接,需考虑猫道架设对主塔及索鞍罩的影响。采用MIDAS/FEA有限元软件对钢桥塔强度、主索鞍鞍罩强度、猫道细部连接强度及桥塔稳定性进行了分析。During the construction of the cable system of Shenyang East Tower Bridge across the Hun river is an all-steel structure self-anchored suspension bridge,the upper end of the catwalk is anchored on the saddle cover of the upper end of the steel bridge tower.In the construction of catwalk,the attachment of bridge tower is not welded,so the influence of catwalk on the main tower and cable saddle cover should be considered.In this paper,Midas finite element software is used to analyze the strength of steel bridge tower,the strength of saddle cover of main cable saddle,the strength of catwalk detail connection and the stability of bridge tower.

关 键 词：自锚式悬索桥 猫道 细部连接 格构式主塔 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]