不对称连续刚构桥地震反应分析
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摘要
文章以贵州省六盘山市一座不对称连续刚构桥为工程实例,利用结构分析软件MIDAS CIVIL建立了该桥的有限元分析模型,并选用Taft波与时程分析法计算了该桥的地震响应情况。结果表明桥墩是地震作用下全桥受力最不利的位置,必须重视桥墩的抗震设计和验算。
With an asymmetric continuous rigid frame bridge in Liupanshan City of Guizhou as the engineering case, the article used the structural analysis software MIDAS CIVIL to establish the finite element analysis model of this bridge, and calculated the seismic response situation of this bridge through selecting the Taft wave and time history analysis method.The results showed that the pier is the most unfavorable position of entire bridge force under the impact of earthquake, thus it is required to attach the importance to the seismic design and checking computing of bridge piers.
With an asymmetric continuous rigid frame bridge in Liupanshan City of Guizhou as the engineering case, the article used the structural analysis software MIDAS CIVIL to establish the finite element analysis model of this bridge, and calculated the seismic response situation of this bridge through selecting the Taft wave and time history analysis method.The results showed that the pier is the most unfavorable position of entire bridge force under the impact of earthquake, thus it is required to attach the importance to the seismic design and checking computing of bridge piers.
引文
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[2]徐必良.中等跨径非对称预应力混凝土连续梁桥的设计[D].南京:东南大学,2000.
[3]范立础,胡世德,叶爱君.大跨度桥梁抗震设计[M].北京.人民交通出版社,2001.
[4]张静娟.大跨连续钢构桥地震反应分析[J].西安建筑科技大学,2009,25(1):146-149.
[5]冯云田,李明瑞,林春哲.复杂结构的弹性地震反应分析[J].地震工程与工程振动,1991,11(4):87-89.
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