多塔部分斜拉桥参数敏感性分析  

Sensitivity Analysis on Parameters of Multi-pylon Partial Cable-stayed Bridge

作　　者：关进轩 GUAN Jinxuan(China Railway Bridge Group Co.,Ltd.,Wuhan 430050,China)

机构地区：[1]中铁大桥局集团有限公司,湖北武汉430050

出　　处：《城市道桥与防洪》2025年第1期244-250,共7页Urban Roads Bridges & Flood Control

摘　　要：为研究多塔部分斜拉桥的主要参数对其结构受力性能的影响,统计了国内外81座多塔部分斜拉桥的设计参数分布区间,并以一主跨225m的温州瓯江三塔四跨多塔部分斜拉桥为依托,结合理论分析以及有限元计算,分别对多塔部分斜拉桥的主梁高跨比、主塔塔跨比进行参数敏感性分析,得到了该类参数对其结构内力、变形及拉索应力幅等影响的一般规律,可作为同类型桥梁设计的参考及进一步研究的基础。In order to study the influence of the parameters of multi-pylon partial cable-stayed bridge on its structural stress performance,the design parameter distribution interval of 81 partial cable-stayed bridges at home and abroad is counted.Based on the three-pylon four-span partial cable-stayed bridge with the main span of 225 m on Oujiang River in Wenzhou,combined with the theoretical analysis and finite element calculation,the parameter sensitivity analysis on the height-span ratio of the girder and the pylon-span ratio of the main pylon of the multi-pylon partial cable-stayed bridge is carried out respectively.The general law of the influence of these parameters on the internal force,deformation and cable stress amplitude is obtained,which can be used as a reference for the design of similar bridges and the basis for the further research.

关 键 词：多塔 部分斜拉桥 参数 敏感性分析 

分 类 号：U24[交通运输工程—道路与铁道工程]