桥梁结构地震反应邻梁碰撞分析等效刚体模型

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英文篇名：EQUIVALENT RIGID-BODY COMPACT MODEL OF POUNDING BETWEEN ADJACENT BRIDGE GIRDERS DURING EARTHQUAKES 中文刊名：工程力学 英文刊名：Engineering Mechanics 作者：王东升 ; 王国新 ; 冯启民 英文作者：WANG Dong-sheng1 ; WANG Guo-xin1 ; FENG Qi-min2 (1. State Key Laboratory of Coastal and Offshore Engineering ; Dlian University of Technology ; Dalian 116024 ; China ; 2. Ocean University of China ; Qingdao ; 266071 ; China) 中文关键词：桥梁 ; 地震反应 ; 碰撞 ; 分析模型 ; 恢复系数 英文关键词：bridge ; seismic response ; pounding ; analysis model ; coefficient of restitution 出版日期：2004-08-30 机构：海岸与近海工程国家重点试验室,大连理工大学,海岸与近海工程国家重点试验室,大连理工大学,中国海洋大学 大连116024 ,大连116024 ,青岛266071 年：2004 期：04 出版单位：工程力学

摘要

在基于直杆共轴碰撞理论建立的桥梁地震反应邻梁碰撞分析模型基础上,结合动量守恒定律和能量守恒定律,给出了与之等效的刚体碰撞模型,所定义的等效恢复系数r由邻梁长度比12/ll和碰撞弹簧刚度比a唯一决定。一座实际桥梁地震反应邻梁碰撞效应分析表明,等效刚体碰撞模型可以得到与弹性杆碰撞模型几乎一致的结果。
Conservation laws of momentum and energy are introduced to model pounding between adjacent bridge girders based on collinear compact between rod theory. An equivalent rigid-body compact model is proposed. The coefficient of restitution depends only on the length ratio 12/ll and impact spring stiffness ratio a. A simplified analysis of seismic pounding in a concrete bridge indicates that the equivalent rigid-body compact model can acquire almost the same structural response as that elastic rod compact model does.

引文

[1]王东升,冯启民,王国新.基于直杆共轴碰撞理论的桥梁地震反应邻梁碰撞分析模型[J].工程力学,2004,21(2):157-166.WangDongsheng,FengQimin,WangGuoxin.Analysis model of pounding between adjacent bridge girders during earthquakes based on collinear compact between rod theory[J].EngineeringMechanics,2004,21(2):157-166.(inChinese)
    [2]S A Anagnostopoulos.Pounding of buildings in series during earthquakes[J].EarthquakeEng.Stru.Dyn.,1988,16:443-456.
    [3]S A Anagnostopoulos,K V Spiliopoulos.An investigation of earthquake induced pounding between adjacent buildings[J].EarthquakeEng.Stru.Dyn.,1992,21(4):289-302.
    [4]R Jankowski,K Wilde,Y Fujino.Pounding of super-structure segments in isolated elevated bridge during earthquakes[J].EarthquakeEng.Stru.Dyn.,1998,27(5):487-502.
    [5]R Jankowski,K Wilde,Y Fujino.Reduction of pounding effects in elevated bridges during earthquakes[J].EarthquakeEng.Stru.Dyn.,2000,29(2):195-212.
    [6]A Ruangrassamee,K Kawashima.Relative displacement spectra with pounding effects[J].EarthquakeEng.Stru.Dyn.,2001,30:1511-1538.
    [7]P K Malhotra.Dynamic of seismic pounding at expansion joints of concrete bridges[J].Journal ofEngineeringMechanics,ASCE,1998,124(7):794-802.
    [8]K T Chau,X X Wei.Pounding of structures modeled as nonlinear impacts of two oscillators[J].EarthquakeEng.Stru.Dyn.,2001,30:633-651.