摘要
采用MATLAB软件开发计算程序,用汶川地震一地震波的平动分量计算得到转动分量。在此基础上,采用ABAQUS有限元分析软件,通过对一对称框架结构进行数值计算,研究结果表明:地震波的扭转分量对对称框架结构的位移影响较大,在抗震设计中不可忽视。
This paper gets the torsional component of Wenchuan wave through the Matlab calculation software.On this basis,using ABAQUS FEA software,through the numerical calculation of a symmetrical frame,we can draw a conclusion that the seismic torsional components have significant impact on displacement of symmetric frame,and it can't be ignored in seismic design.
引文
[1]Dimova S L.Alashki Seismic design of symmetric structures for ac-cidental torsion,2003,(1).
[2]Humar J M.Yavari S.Saatcioglu M Design for forces induced byseismic torsion,2003,(2).
[3]Chopra A K Dynamics of Structures.Theory and Applications toEarthquake Engineering 2005.
[4]GB50011-2010,建筑抗震设计规范[S].
[5]魏琏,王森.论水平地震作用下对称和规则结构的抗扭设计[J].建筑结构,2005,(5).
[6]Newmark N M.Torsion in symmet rical buildings[C]//.Proc.4 thWCEE,1969(A 23):19-30.
[7]Castellani A and Boffi G.Rotational Componts of the SurfaceGround Motion During an Earthquake.EESD,1986(14):751.
[8]李宏男.结构多维抗震理论[M].北京:科学出版社,1998.