基于ANSYS的巨型框架结构体系地震响应分析.pdfVIP

第34 卷第4 期 合肥工业大学学报( 自然 科 学 版 ) Vol. 34 No . 4 2011 年4 月 JOURNAL OF H EFEI UNIVERSITY OF TECH NOLOGY Apr. 2011 Doi: 10. 3 6 / j. issn. 2011. 04. 016 ANSYS 花能新, 叶献国 ( , 23000 ) : ANSYS APDL , , , : ; ; : ; APDL ; ; ; :TU3113 : A :2011) Analysis of seismic response of RC megaframe structures by ANSYS HUA Nengxin, YE Xianguo ( School of Civil and Hydraulic Engineering, H efei University of T echnology, H efei 23000 , China) Abstract : Using the ANSYS parametric design language( A PDL) , a threedimensional parametric finite element model is set up in this paper. T he aseismatic performance of the megaframe structure is dis cussed including the modal analysis, spectral analysis, and timehistory analysis. And the dynamic characteristic and seismic response of the megaframe structure w ith different stiffness ratio betw een the major and minor frames are studied. T he results show that the displacement curve of reinforced concrete( RC) megaframe structures is a type of flexureshear. The stiffness ratio between the major and minor frames has a notable influence on the elastic seismic response of the structure. The higher order frequency of the structure has certain influence on the structure, and w hen its period is close to the earthquake w ave predominant one, a pseudoresonance phenomenon may occur. Key words: megaframe structure; ANSYS parametric design language( APDL) ; modal analysis; spec tral analysis; timehistory analysis 2 , , , , [ 1, 2] 1 ANSYS APDL , 55 , 201 m, 558 , 36 m, 42 m, 11