柴埠溪特大桥主桥单双层主梁方案比选  

Comparison and Selection of Single and Double Deck Main Girder Schemes for the Main Bridge of Chaibuxi Bridge

作　　者：付强 迟东彪 FU Qiang;CHI Dongbiao(Central South Survey Design Institute Group Co.,Ltd.,Wuhan 430070,China)

机构地区：[1]中南勘察设计院集团有限公司,武汉430070

出　　处：《现代交通技术》2022年第6期35-39,共5页Modern Transportation Technology

摘　　要：柴埠溪特大桥主桥为双塔双索面斜拉桥,建设工程涉及宜来高速公路和省道242渔洋关绕城段公路的桥梁合建,为满足使用需求,桥面布置可采用双层桥面或单层桥面形式。采用桥梁结构分析软件MIDAS建立整体模型,对比分析两种桥面形式的受力特点;结合项目特点及建设条件,根据两种方案的优缺点综合比选,确定更符合项目实施的方案;给出集两种交通功能于一体的大跨径斜拉桥桥面布置新方案。The main bridge of Chaibuxi Bridge is a cable-stayed bridge with double towers and double cable planes.The construction project involves the joint construction of the bridge between Yilai Expressway and Provincial Highway 242 Yuyangguan Bypass Highway.To meet the usage requirements,the bridge deck arrangement can be in the form of double deck or single deck.The bridge structure analysis software MIDAS is used to establish the overall model,compare and analyze the force characteristics of the two deck forms;combined with the project characteristics and construction conditions,according to the advantages and disadvantages of the two options to determine the more consistent with the implementation of the project;can provide a new scheme of large-span cable-stayed bridge deck layout that integrates two traffic functions.

关 键 词：双塔斜拉桥 双层桥面 单层桥面 有限元分析 方案比选 

分 类 号：U442.54[建筑科学—桥梁与隧道工程]