[1]李宇,李钊,李琛.钢-砼混合梁斜拉桥的颤抖振时域分析[J].郑州大学学报(工学版),2016,37(03):69.[doi:10.13705/ j. issn.1671 -6833.2016.03.016]
　LI Yu,LI Zhao,LI Chen.Flutter and Buffeting Analysis for Cable-stayed Bridge with Steel-concrete Girder[J].Journal of Zhengzhou University (Engineering Science),2016,37(03):69.[doi:10.13705/ j. issn.1671 -6833.2016.03.016]
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钢-砼混合梁斜拉桥的颤抖振时域分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
37
期数:
2016年03期
页码:
69
栏目:
出版日期:
2016-05-10

文章信息/Info

Title:
Flutter and Buffeting Analysis for Cable-stayed Bridge with Steel-concrete Girder
作者:
李宇; 李钊; 李琛
1.长安大学旧桥检测与加固技术交通行业重点试验室，陕西西安710064;2.长安大学建筑学院，陕西西安710064
Author(s):
LI Yu1; LI Zhao1; LI Chen2
1 .Key Laboratory of Ministry of Communications for Bridge Detection & ReinforcementTechnology , School of Highway , Chang’an University ，Xi’an 710064,China; 2.School of Architecture，Chang’ an University ，Xi’ an 710064, China
关键词:
斜拉桥; 颤振; 抖振; 非线性; 时域分析
Keywords:
cable-stayed bridge; fluttering response; buffeting response; nonlinear;  time domain analysis
分类号:
U442.5
DOI:
10.13705/ j. issn.1671 -6833.2016.03.016
文献标志码:
A
摘要:
以大跨钢-砼混合梁斜拉桥为研究对象,利用三次拉格朗日多项式插值的改进谐波合成法模拟了大桥所处场地的脉动风荷载.在此基础上,采用ANSYS建立了大跨斜拉桥的有限元模型,并利用AN-SYS的 APDL语言进行了二次开发,编制了能够计算钢-砼混合梁斜拉桥颤抖振响应的程序.研究结果表明:大跨钢-砼混合梁斜拉桥的颤抖振响应不仅会引起桥梁疲劳振动,进而降低桥梁构件的使用寿命,而且会危及施工人员和机械的安全,影响成桥运营后的行人舒适性和高速行车的安全性．
Abstract:
Based on long-span and steel-concrete bridge,the perfect stochastic fluctuating wind field processis generated to simulate stochastic wind loads by using improved WAWS method. Then,the FEA model oflong-span cable-stayed bridge is established by using ANSYS.Based on ANSYS parametric design language,one calculation program is prepared to calculate the flutter and buffeting analysis for cable-stayed bridge withsteel-concrete composite girder.Some meaningful conclusions are drawn that flutter and buffeting would causevibration fatigue to reduce the lifetime of bridge members and endanger the safety of builders and machines.1nu,uei anu bueung asu uave wau euecus ou peuesu.al count anu ue seulny 0 mg-speeu 10au.Some meaningful references,which are used to calculate flutter and buffeting of long-span and steel-concretebridges,are provided for further research on wind-induced vibration for long-span bridges.

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