蝴蝶拱桥横向受力特性分析  

Analysis on transverse mechanical properties of butterfly-shaped arch bridge

作　　者：韩若愚 李方元[1] 

机构地区：[1]同济大学土木工程学院桥梁工程系,上海200092

出　　处：《上海公路》2017年第2期58-61,共4页Shanghai Highways

摘　　要：以某实际工程为例,建立该桥蝴蝶拱方案的有限元计算模型,考虑当拱肋倾角一定时,改变吊杆角度对结构受力的影响,并计算风荷载产生的横向效应,将蝴蝶拱和提篮拱方案进行综合对比,分析总结了蝴蝶拱桥横向的受力特点。Based on a practical project,a finite element model of butterfly-shaped arch bridge is built up which discusses the influence of angle between hangers and arch rib on structural behavior when inclination of arch rib keeps constant,and calculates the transverse effect induced by wind load.By comprehensively comparing the difference between butterfly-shaped arch and basket handle arch bridge,the transverse mechanical properties of butterfly-shaped arch bridge are analyzed and concluded.

关 键 词：蝴蝶拱桥 吊索角度 横向刚度 有限元 

分 类 号：U441[建筑科学—桥梁与隧道工程]