高层建筑土-结构相互作用地震反应分析方法及应用
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摘要
将土与结构作为一个整体,采用平面土-结构相互作用模型,提出了高层建筑土-结构相互作用地震反应分析方法.上部结构采用平面框架-剪力墙(筒体)协同工作模型;地基以高度为H、宽度为B、厚度为t的土体来模拟;土体在静力分析时采用Duncan-Chang模型,动力分析时采用等效线性化模型;基础根据其形式及刚度,分别以梁单元、刚块单元或受弯板单元来模拟.从2个场地覆盖土层较厚的高层建筑为算例,阐明了土-结构相互作用对高层建筑地震反应的影响及该方法的适用性.
In this paper,the soil and structure as an integrate system,using plan soil-structure interaction model,a practical seismic response analysis method considering soil-structure interaction of high-rise buildings is proposed.In this method,the plan frame-shear wall(tube) cooperative work model is used in the upper structure.A soil mass with height H and width B,and thickness t is used to simulate the foundation soils.About the constitutive model of soil,Duncan-Chang model is used in static analysis,the equivalent linearization model is used in dynamic analysis.The flexible,rigid and pile foundation are simulated by beam element,rigid block or plate element,respectively.The influence of soilstructure interaction on seismic response of high-rise buildings and the application of this method are illustrated by two examples of high-rise buildings with deep foundation soil.
In this paper,the soil and structure as an integrate system,using plan soil-structure interaction model,a practical seismic response analysis method considering soil-structure interaction of high-rise buildings is proposed.In this method,the plan frame-shear wall(tube) cooperative work model is used in the upper structure.A soil mass with height H and width B,and thickness t is used to simulate the foundation soils.About the constitutive model of soil,Duncan-Chang model is used in static analysis,the equivalent linearization model is used in dynamic analysis.The flexible,rigid and pile foundation are simulated by beam element,rigid block or plate element,respectively.The influence of soilstructure interaction on seismic response of high-rise buildings and the application of this method are illustrated by two examples of high-rise buildings with deep foundation soil.
引文
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[8]胡聿贤.地震工程学[M].北京:地震出版社,1988:216-447.
[2]龙驭球,包世华.结构力学下册[M].北京:高等教育出版社,1981:43-102.
[3]张克绪,谢君斐.土动力学[M].北京:地震出版社,1989:9-36.
[4]过镇海.钢筋混凝土原理[M].北京:清华大学出版社,1999:201-275.
[5]刘洁平,张令心,石磊.基于MSC.Marc二次开发的土体静力和地震非线性分析方法[J].地震工程与工程振动,2008,28(3):178-183.LIU Jie-ping,ZHANG Ling-xin,SHI Lei.Static and seismic non-linear analysis nethods of soils based on MSC.Marcredevelopment[J].Journal of Earthquake Engineering and Engineering Vibration,2008,28(3):178-183.(in Chinese)
[6]石磊.高层建筑土-结构相互作用地震反应分析方法[D].哈尔滨:中国地震局工程力学研究所,2005.SHI Lei.Method for seismic soil-structure interaction response analysis of high-rise building[D].Harbin:Institute ofEngineering Mechanics,China Earthquake Administration,2005.(in Chinese)Method for Seismic Soil-Structure Interaction Response Analysis of High-Rise Building
[7]丁海平,刘启方,金星,等.昆明盆地地震效应研究报告[R].哈尔滨:中国地震局工程力学研究所报告,2007:53-110.
[8]胡聿贤.地震工程学[M].北京:地震出版社,1988:216-447.
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