It is studied in this paper by large - scale universal program ansys the problem about geometric non - linear effect on earthquake - resistant behavior of multi - storey and highrise concrete frame structure under strong - motion earthquake and is also analyzed in full spatial self - bracing function which is ignored by planar model of multi - storey and highrise concrete frame structure 本文主要運(yùn)用大型通用有限元程序ansys研究幾何非線性效應(yīng)對多高層混凝土框架結(jié)構(gòu)在強(qiáng)震作用下抗震性能的影響問題,另外,對多高層混凝土框架結(jié)構(gòu)取平面模型所忽略的空間相互作用也詳加分析。
Secondly , the author assumes material is elastic , separately adopts planar model and spatial model of the 6 - 12 - 18 - storey spatial concrete frames reckons in shear deformation and axial deformation and contrastingly analyzes lateral displacement of the frames under taft . e1 - centro and tianjfn seismic wave considering geometric non - linear effect or not in order to find out the rule about geometric non - linear effect on earthquake - resistant behavior of multi - storey and highrise concrete frame structure under strong - motion earthquake . simultaneously , the author weighs the effect of spatial self - bracing function on structural analysis by contrasting lateral displacement between planar model and spatial model of the frames 其次,作者在彈性材料假定下,對六層、十二層、十八層空間混凝土框架,分別取其空間模型和平面模型,計入剪切變形、軸向變形的影響,按考慮幾何非線性因素與否,分別在taft 、 e1 ? centro及天津地震波作用下,作以對比分析,以找出幾何非線性效應(yīng)對多高層混凝土框架結(jié)構(gòu)在強(qiáng)震作用下抗震性能的影響的規(guī)律;同時,對平面模型與空間模型之間的空間相互作用,均以其幾何非線性情況下的位移反應(yīng)作對比分析,來衡量空間相互作用對結(jié)構(gòu)分析的影響。