大跨度拱塔斜拉桥减震隔震分析

英文篇名：Analysis of seismic response control for long-span and arch-tower cable-stayed bridges
中文刊名：安徽建筑工业学院学报(自然科学版)
英文刊名：Journal of Anhui Institute of Architecture & Industry(Natural Science)
作者：张飞 ; 张虎 ; 於亚辉 ; 徐斌
英文作者：ZHANG Fei1 ; ZHANG Hu2 ; YU Ya-jun1 ; XU Beng1(1 School of Civil Engineering ; Hefei University of Technology ; Hefei 230009 ; China ; 2.The Fourth Engineering CO. ; LTD.of CTCE Group ; Hefei 230022 ; China)
中文关键词：大跨度斜拉桥 ; 减震隔震措施 ; 地震输入 ; 减、隔震支座
英文关键词：large-span cable-stayed bridge ; shock absorption measures ; seismic input ; seismic bearings
出版日期：2011-02-15
机构：合肥工业大学土木与水利工程学院;中铁四局集团第四工程有限公司;
年：2011
期：01
出版单位：安徽建筑工业学院学报(自然科学版)

摘要

大跨度斜拉桥在地震作用下往往会发生各种形式的破坏,如采用必要的减、隔震措施,能够保证桥梁在地震作用下维持特有的力学性能。本文基于大型有限元软件ANSYS为计算平台,利用各种不同的地震动输入以及弹簧单元模拟塔梁结合形式出发,探讨了塔梁结合形式的不同对于大跨度桥梁减震隔震的效果。最后结合工程实例表明,对于大跨度拱塔斜拉桥设置减、隔震支座进行地震反应分析,结果发现只要塔梁结合形式选择合适,就能起到明显的减震效果。
Large-span cable-stayed bridge usually subjects to various forms of damages in the earthquake.But its typical mechanical properties can be maintained during the quake if necessary shock absorption measures be taken.Utilizing the ANSYS finite element software as the computing platform,as well as different seismic input and spring element to simulate the bounding pad of tower and beam,this paper discussed the effects of shock vibration for large-span bridge in terms of different types of bounding pad of tower and beam.Finally,the method is used to a case study.From the seismic response analysis of the bridge with seismic bearings,the result shows that proper bounding pad of tower and beam has obvious effect in seismic resistance.

引文

1林均岐,白春旭,陈永盛等.多点激励下大跨度斜拉桥地震反应分析[J].地震工程与工程振动,2009,29(6):154-161.
    2郭磊,李建中,范立础.大跨度连续梁桥减隔震设计研究[J].土木工程学报,2006,39(3)81-85.
    3盛宏玉.结构动力学[M].合肥:合肥工业大学出版社,2005.
    4 Wilson E L.Three dimensional static and dynamic a-nalysis of structures:a physical approach with empha-sis on earthquake engineering[M].Computers andStructures,Inc,Berkley,California.
    5范立础.桥梁抗震[M].上海:同济大学出版社.1997.
    6张波,盛和太.ANSYS有限元数值分析原理与工程应用[M].北京:清华大学出版社,2005.
    7 Fu Yaomin,Cherry S.Design of friction dampedstructures using lateral force procedure[J].Earth-quake Engineering and Structural Dynamics,2000,29(7):989-1010.
    8叶爱君,胡世德,范立础.超大跨度斜拉桥的地震位移控制[J].土木工程学报,2004,37(12):38-43.
    9柳国环,李宏男,林海.结构地震响应计算模型的比较与分析[J].工程力学,2009,26(2):10-15.
    10范立础,袁万城.桥梁橡胶支座减、隔震性能研究[J].同济大学学报,1989,17(4):447-454.