三维土-结构动力相互作用的一种时域直接分析方法
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摘要
本文提出了一种分析三维土-结构动力相互作用的时域直接方法。该方法采用集中质量显式有限元和透射人工边界模拟无限域地基,通过编制的FORTRAN程序实现;采用ANSYS软件对上部结构进行建模分析,并通过FORTRAN程序对ANSYS软件的调用,实现了土与结构系统在地震作用下的整体分析。该方法为显隐式相结合的方法,地基和上部结构可采用不同的时间步距进行分析,可大大提高效率。通过两算例,验证了该方法的可行性。
A direct method for analysis of three-dimensional soil-structure dynamic interaction is proposed in this paper.The unbounded soil is modeled by lumped-mass finite element and transmitting boundary,and the structure is modeled by ANSYS software.The responses of the soil-structure system under earthquake can be obtained by combing FORTRAN code with ANSYS software.The explicit-implicit integration scheme is used in this hybrid method, and the efficiency can be greatly improved by using different time steps in soil and structure analysis.Two examples are given to demonstrate the feasibility of this method.
A direct method for analysis of three-dimensional soil-structure dynamic interaction is proposed in this paper.The unbounded soil is modeled by lumped-mass finite element and transmitting boundary,and the structure is modeled by ANSYS software.The responses of the soil-structure system under earthquake can be obtained by combing FORTRAN code with ANSYS software.The explicit-implicit integration scheme is used in this hybrid method, and the efficiency can be greatly improved by using different time steps in soil and structure analysis.Two examples are given to demonstrate the feasibility of this method.
引文
[1]Luco J E.Linear soil-structure interaction:A review,earthquake ground motion and its effect on structures[J].ASME,1982,53(1):41-57.
[2]林皋.土-结构动力相互作用[J].世界地震工程,1991,7(2):4-21.
[3]熊建国.土-结构动力相互作用问题的新进展(I)[J].世界地震工程,1992,8(2):22-29.
[4]张楚汉.结构-地基动力相互作用问题[C]∥结构与介质相互作用理论及其应用.南京:河海大学出版社,1993:243-26.
[5]李辉,赖明,白绍良.土-结动力相互作用研究综述(II)-研究的历史、现状与展望[J].重庆建筑大学学报,1999,21(4):112-116.
[6]Wolf J P.Soil-structure interaction analysis in time domain[M].NJ:Prentice Hall,Englewood Cliffs,1988:11-35.
[7]Jean W Y,Lin T W,Penzien J.System parameters of soil foundations for time domain dynamic analysis[J].Earthq.Eng.Structut.Dyn.,1990,19(4):541-553.
[8]王有为,王开顺.建筑物-桩-土相互作用地震反应分析的研究[J].建筑结构学报,1985,6(5):64-73.
[9]李永梅,孙国富,王松涛,等.桩-土-杆系结构动力相互作用[J].建筑结构学报,2002,23(1):75-81.
[10]Bielak J.Dynamic response of non-linear building-foundation systems[J].Earthq.Eng.Struct.Dyn.,1978,6(1):17-30.
[11]Gutierrez J A,Chopra A K.A substructure method for earthquake analysis of structures including structure-soil interaction[J].Earthq.Eng.Struct.Dyn.,1978,6(1):51-69.
[12]Hayashi Y,Takahashi I.An efficient time-domain soil-structure interaction analysis based on the dynamic stiffness of an unbounded soil[J].Earthq.Eng.Structut.Dyn.,1992,21(4):787-798.
[13]Wu Wen-hwa,Smith H A.Efficient modal analysis for structures with soil-structure interaction[J].Earthq.Eng.Struct.Dyn.,1995,24(7):283-299.
[14]Guin J,Banerjee P K.Coupled soil-pile-structure interaction analysis under seismic excitation[J].J.Struct.Eng.Div.ASCE,1998,124(4):434-444.
[15]宋亚新,蒋通,楼梦麟.桩基-非线性框剪结构相互作用体系(下)-相互作用对结构地震反应的影响[J].地震工程与工程振动,2000,20(1):48-55.
[16]Iida M.Three dimensional non-linear soil-building interaction analysis in the lakebed zone of Mexico city during the hypothetical guerrero earth-quake[J].Earthq.Eng.Struct.Dyn.,1998,27(12):1483-1502.
[17]李培林,吕西林,陈波,等.均匀土-箱基-结构相互作用体系的计算分析[J].地震工程与工程振动,2002,22(5):115-121.
[18]刘晶波,吕彦东.结构-地基动力相互作用问题分析的一种直接方法[J].土木工程学报,1998,31(3):55-64.
[19]张学胜.软土地基上结构地震反应的时域三维分析[D].哈尔滨:中国地震局工程力学研究所,1996.
[20]廖振鹏.工程波动理论导论[M].2版.北京:科学出版社,2002.
[2]林皋.土-结构动力相互作用[J].世界地震工程,1991,7(2):4-21.
[3]熊建国.土-结构动力相互作用问题的新进展(I)[J].世界地震工程,1992,8(2):22-29.
[4]张楚汉.结构-地基动力相互作用问题[C]∥结构与介质相互作用理论及其应用.南京:河海大学出版社,1993:243-26.
[5]李辉,赖明,白绍良.土-结动力相互作用研究综述(II)-研究的历史、现状与展望[J].重庆建筑大学学报,1999,21(4):112-116.
[6]Wolf J P.Soil-structure interaction analysis in time domain[M].NJ:Prentice Hall,Englewood Cliffs,1988:11-35.
[7]Jean W Y,Lin T W,Penzien J.System parameters of soil foundations for time domain dynamic analysis[J].Earthq.Eng.Structut.Dyn.,1990,19(4):541-553.
[8]王有为,王开顺.建筑物-桩-土相互作用地震反应分析的研究[J].建筑结构学报,1985,6(5):64-73.
[9]李永梅,孙国富,王松涛,等.桩-土-杆系结构动力相互作用[J].建筑结构学报,2002,23(1):75-81.
[10]Bielak J.Dynamic response of non-linear building-foundation systems[J].Earthq.Eng.Struct.Dyn.,1978,6(1):17-30.
[11]Gutierrez J A,Chopra A K.A substructure method for earthquake analysis of structures including structure-soil interaction[J].Earthq.Eng.Struct.Dyn.,1978,6(1):51-69.
[12]Hayashi Y,Takahashi I.An efficient time-domain soil-structure interaction analysis based on the dynamic stiffness of an unbounded soil[J].Earthq.Eng.Structut.Dyn.,1992,21(4):787-798.
[13]Wu Wen-hwa,Smith H A.Efficient modal analysis for structures with soil-structure interaction[J].Earthq.Eng.Struct.Dyn.,1995,24(7):283-299.
[14]Guin J,Banerjee P K.Coupled soil-pile-structure interaction analysis under seismic excitation[J].J.Struct.Eng.Div.ASCE,1998,124(4):434-444.
[15]宋亚新,蒋通,楼梦麟.桩基-非线性框剪结构相互作用体系(下)-相互作用对结构地震反应的影响[J].地震工程与工程振动,2000,20(1):48-55.
[16]Iida M.Three dimensional non-linear soil-building interaction analysis in the lakebed zone of Mexico city during the hypothetical guerrero earth-quake[J].Earthq.Eng.Struct.Dyn.,1998,27(12):1483-1502.
[17]李培林,吕西林,陈波,等.均匀土-箱基-结构相互作用体系的计算分析[J].地震工程与工程振动,2002,22(5):115-121.
[18]刘晶波,吕彦东.结构-地基动力相互作用问题分析的一种直接方法[J].土木工程学报,1998,31(3):55-64.
[19]张学胜.软土地基上结构地震反应的时域三维分析[D].哈尔滨:中国地震局工程力学研究所,1996.
[20]廖振鹏.工程波动理论导论[M].2版.北京:科学出版社,2002.
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