建模方式对T型桥梁地震反应的影响研究

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英文篇名：Study on the Influence of the Different Modeling Methods to Seismic Response of T-type Bridge 中文刊名：江西科学 英文刊名：Jiangxi Science 作者：胡兵华 ; 林天发 ; 李程华 英文作者：HU Bing-hua1 ; LIN Tian-fa2 ; LI Cheng-hua1(1.Communications Design Institute of Jiangxi Province ; Jiangxi Nanchang 330002 PRC ; 2.Highway Administrative Bureau of Jiangxi Province ; Jiangxi Nanchang 330025 PRC) 中文关键词：连续梁桥 ; T梁 ; 建模方式 ; 地震响应 ; 影响 英文关键词：Continuous beam bridge ; T-type beam ; Different modeling methods ; Earthquake response ; Influence 出版日期：2008-06-15 机构：江西省交通设计院,江西省高等级公路管理局,江西省交通设计院 江西南昌330002,江西南昌330025,江西南昌330002 年：2008 期：03 出版单位：江西科学

摘要

研究了不同的建模方式对不同的墩高、不同场地条件下桥梁地震反应的影响程度。研究发现:无论在何种场地条件、何种桥墩高度的桥梁,单梁模型在纵、横桥向地震响应的分析精度都较高,能满足工程设计需要;梁格模型纵向地震响应分析误差在5%以内,横向地震响应分析误差在10%~20%。因此,对于横向由多片梁组成的T梁桥,单梁模型建模简单且精度较高,能满足工程设计需要。
The effect degree of different modeling methods to seismic response of bridge with different pier,various terrain conditions is studied.Study found:single-beam model has high analysis precision on seismic response in longitudinal direction and in transverse direction of bridge with whatever pier height and terrain condition,it completely meets needs of engineering design.The error of beam gird model is within 5% to seismic response in longitudinal direction,and the analysis error is in 10%~20% to seismic response in transverse direction.To conclude,for the multi-beam composed T-beam Bridge,single-beam model is simple and high in precision,it can meets needs of engineering design.

引文

[1]范立础,李建中,王君杰.高架桥梁抗震设计[M].北京:人民交通出版社,2001.
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    [3]Robert Jamkowski,Kezysztof Wilde,Yozo Fujino.Pounding of superstructure segments in isolated elevat-ed bridge during earthquakes[J].Earthquake Engi-neering and Structural Dynamics,1998,27:487-502.