连续梁拱组合结构风致抖振响应分析  

Nonlinear time-domain buffeting response analysis of continuous beam-arch composite structures

作　　者：余海洪 Yu Haihong(China Railway Sichuan Ecological City Investment Co.,Ltd,Meishan 620500,China)

机构地区：[1]中铁四川生态城投资有限公司,四川眉山620500

出　　处：《山西建筑》2018年第32期170-172,共3页Shanxi Architecture

摘　　要：以连续梁拱组合结构为背景,利用模拟脉动风场,得到组合结构的时域风荷载,而且通过组合桥抖振时域分析;对拱肋考虑其非线性特征,选择综合了Newmark法与修正的Newton-Raphson迭代法得出结果,并将线性与非线性的数据进行对比分析,对连续梁拱组合结构的非线性抖振响应分析具有一定的参考意义。Through the simulation of the pulsating wind field,the time-domain wind load of the bridge structure is obtained and the time-domain analysis of the bridge is used. The continuous beam-arch structure is taken as an example to analyze the non-linear behavior of the structure.Combining the Newmark method with the modified Newton-Raphson iteration method to solve the motion equation,and comparing the linear and nonlinear analysis results,the nonlinear buffeting response analysis of this kind of bridge has some reference value.

关 键 词：连续梁拱组合结构 抖振 时域 非线性 

分 类 号：U441[建筑科学—桥梁与隧道工程]