地下室埋深对高层建筑地震反应的影响分析
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摘要
为研究地下室埋深对高层建筑地震反应的影响,以实际工程中的某高层剪力墙结构为研究对象,采用理论分析和三维数值模拟相结合的方法,研究了地下室埋深和地基支撑刚度对高层钢筋混凝土结构抗震性能的影响。结果表明:随着地下室埋深的增加,结构的周期有变大的趋势;同时结构承受的地震作用将减少,使得结构抗震性能有较明显的提高;地基对结构支撑作用的变化对结构抗震性能的影响不大。
In order to study the effect of basement depth on the seismic response of high rise buildings,a high-rise shear wall structure was studied.The influence of basement depth and foundation stiffness on the seismic performance of the high-rise reinforced concrete structure was analyzed by a combination of theoritical analysis and 3D numerical simulation.The results show that with the increase of basement depth,the structural period will increase and the earthquake action on structures will be reduced,improving the seismic performance of the structure obviously.The change of foundation support has little effect on the seismic performance of the structure.
In order to study the effect of basement depth on the seismic response of high rise buildings,a high-rise shear wall structure was studied.The influence of basement depth and foundation stiffness on the seismic performance of the high-rise reinforced concrete structure was analyzed by a combination of theoritical analysis and 3D numerical simulation.The results show that with the increase of basement depth,the structural period will increase and the earthquake action on structures will be reduced,improving the seismic performance of the structure obviously.The change of foundation support has little effect on the seismic performance of the structure.
引文
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[2]门玉明,黄义.土与结构相互作用问题的研究现状及展望[J].力学与实践,2000,22(4):1-7.
[3]窦立军,杨柏坡,刘光和.土—结构动力相互作用几个实际应用问题[J].世界地震工程,1999,15(4):62-67.
[4]GB50011-2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[5]ISENBERG J,ADHAM S A.Interaction of soil and power plants in earthquakes[J].Power Div,ASCE,1972,98:273-291.
[6]PENZIEN J.Soil-pile foundation interaction[M].London:Prentice-Hall,1971:349-381.
[7]WOLF J P,SOMAINI D R.Approximate dynamic model of embedded foundation in time domain[J].Earthquake Engi-neering and Structural Dynamic,1986,14:683-703.
[8]张喜德,王春,王立争.钢骨混凝土异形柱框架模型地震反应分析[J].广西大学学报:自然科学版,2008,33(增):4-7.
[9]王开顺,王有为,李林友.土与结构相互作用地震反应研究及实用计算[J].建筑结构学报,1986,7(2):64-76.
[10]方世敏.上部结构与地基基础共同工作的子结构分析法[J].建筑筑结构学报,1980(4):71-79.
[11]吕西林,陈跃庆,陈波,等.结构—地基动力相互作用体系振动台模型试验研究[J].地震工程与工程振动,2000,20(4):20-29.
[12]陈跃庆,吕西林,李培振,等.分层土—基础—高层框架结构相互作用体系振动台模型试验研究[J].地震工程与工程振动,2001,21(3):104-112.
[13]姜忻良等.多点输入的相邻结构—地基—土地震反应分析[J].地震工程与工程振动,1997,17(4):65-71.
[14]蒯行成,沈蒲生,陈军.地基-筒体结构的地震反应分析[J].湖南大学学报,1997,24(4):79-85.
[15]蒯行成,沈蒲生,陈军.埋置基础近似动力模型及其应用[J].振动工程学报,1997,10(4):506-509.
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