界首市裕民桥总体计算与关键构件分析  

Overall Calculation and Analysis on Key Components of Yumin Bridge in Jieshou City

作　　者：刘胜光 LIU Shengguang

机构地区：[1]上海浦东建筑设计研究院有限公司,上海市201206

出　　处：《城市道桥与防洪》2023年第3期102-105,M0011,共5页Urban Roads Bridges & Flood Control

摘　　要：界首市裕民桥主桥为主跨142 m的自锚式悬索桥,设计步骤主要包括桥梁总体布置的确定、静力有限元建模、整体稳定性分析、缆索线形确定、运营阶段内力分析以及构件强度验算等;同时,还需建立动力模型,以了解桥梁自振模态,并对结构在地震作用下的响应进行分析,进而验算桥梁的抗震性能。所总结的内容可为类似桥梁设计提供较有价值的参考。The main bridge of Yumin Bridge in Jieshou City is a self-anchored suspension bridge with a main span of 142 m.The design steps the bridge mainly include the determination of the overall layout,the establishment of static finite element model,the analysis of overall stability,the determination of cable alignment,the analysis of internal force during operation and the checking calculation of component strength.In addition,it is necessary to establish a dynamic model to understand the natural vibration mode of the bridge,analyze the response of the structure under the action of earthquake,and then check the seismic performance of the bridge.The summarized contents can provide the valuable reference for the design of the similar bridges.

关 键 词：裕民桥 自锚式悬索桥 悬索桥建模 缆索系统 主塔计算长度 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]