高层建筑土-结构相互作用地震反应分析简化评估方法
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摘要
选择不同高度、不同结构类型和不同场地条件的位于厚和深厚地基土层上的10栋典型钢筋混凝土高层建筑,通过考虑土-结构相互作用对高层建筑地震反应影响的分析,在地震动输入、自振特性、相互作用影响因数、体系地震反应等方面得到了一些具有实用价值的关系式,在此基础上,给出了一种以结构与土层第一周期系数αT为指标的高层建筑土-结构相互作用地震反应分析简化评估方法。该方法无需进行复杂又费时的高层建筑土-结构相互作用分析,仅利用简单省时的结构和土层反应分析结果,就可估计出高层建筑土-结构相互作用体系的反应,可用于高层建筑考虑土-结构相互作用地震反应的初步估计。
Soil-structure interaction(SSI) is an important subject with great theoretical significance and practical applications.Although significant progresses have been made for past forty years,there are still important problems to be solved,and developing an effective and practical analysis method considering SSI is one of these problems.In this paper,ten typical reinforced concrete high-rise buildings with different heights,structural types and site conditions in thick or deep foundation soils,are selected.Through comprehensive analysis considering SSI,relationships between ground motion input,natural vibration characteristic,SSI effect factor,and seismic response are obtained.A simplified assessment method for seismic response analysis of high-rise buildings considering SSI is obtained,using the first period coefficient of structure and soils as an index.In this method,it is not necessary to perform complex and time-consuming SSI analysis of high-rise buildings.Using the results of simple and time-saving analysis,the response of SSI system can be assessed.This method can be employed for primary assessment of the seismic response of high-rise buildings considering SSI.
Soil-structure interaction(SSI) is an important subject with great theoretical significance and practical applications.Although significant progresses have been made for past forty years,there are still important problems to be solved,and developing an effective and practical analysis method considering SSI is one of these problems.In this paper,ten typical reinforced concrete high-rise buildings with different heights,structural types and site conditions in thick or deep foundation soils,are selected.Through comprehensive analysis considering SSI,relationships between ground motion input,natural vibration characteristic,SSI effect factor,and seismic response are obtained.A simplified assessment method for seismic response analysis of high-rise buildings considering SSI is obtained,using the first period coefficient of structure and soils as an index.In this method,it is not necessary to perform complex and time-consuming SSI analysis of high-rise buildings.Using the results of simple and time-saving analysis,the response of SSI system can be assessed.This method can be employed for primary assessment of the seismic response of high-rise buildings considering SSI.
引文
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[7]张令心.框架-剪力墙结构地震可靠性分析[D].哈尔滨:中国地震局工程力学研究所,1992
[8]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 Jieping,Zhang Lingxin,Shi Lei.Static and earthquake non-linear analysis methodsof soils based on MSC.Marc redevelopment[J].Journal ofEarthquake Engineering and Engineering Vibration,2008,28(3):178-183(in Chinese))
[9]张克绪,谢君斐.土动力学[M].北京:地震出版社,1989
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[11]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,2007
[2]李小军,廖振鹏.土应力应变关系的粘-弹-塑性模型[J].地震工程与工程振动,1989,9(3):65-72(LiXiaojun,Liao Zhenpeng.Visco-elasto-plastic model of soilstress-strain relationship[J].Journal of EarthquakeEngineering and Engineering Vibration,1989,9(3):65-72(in Chinese))
[3]陈国兴,王志华,宰金珉.考虑土与结构相互作用效应的结构减震控制大型振动台模型试验研究[J].地震工程与工程振动,2001,21(4):117-128(Chen Guoxing,Wang Zhihua,Zai Jinmin.Shaking table model testing ofstructure suppressing vibration control including soil-structure interaction effects[J].Journal of EarthquakeEngineering and Engineering Vibration,2001,21(4):117-128(in Chinese))
[4]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(ShiLei.Method for seismic soil-structure interaction responseanalysis of high-rise building[D].Harbin:Institute ofEngineering Mechanics,2005(in Chinese))
[5]刘洁平.高层建筑土-结构相互作用地震反应分析研究[D].哈尔滨:中国地震局工程力学研究所,2009(LiuJieping.Study on seismic response analysis consideringsoil-structure interaction of high-rise buildings[D].Harbin:Institute of Engineering Mechanics,2009(inChinese))
[6]张令心,刘洁平,石磊.高层建筑土-结构相互作用地震反应分析方法及应用[J].北京工业大学学报,2010,36(1):25-33(Zhang Lingxin,Liu Jieping,Shi Lei.Aseismic response analysis method considering soil-structureinteraction of high-rise buildings and its application[J].Journal of Beijing University of Technology,2010,36(1):25-33(in Chinese))
[7]张令心.框架-剪力墙结构地震可靠性分析[D].哈尔滨:中国地震局工程力学研究所,1992
[8]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 Jieping,Zhang Lingxin,Shi Lei.Static and earthquake non-linear analysis methodsof soils based on MSC.Marc redevelopment[J].Journal ofEarthquake Engineering and Engineering Vibration,2008,28(3):178-183(in Chinese))
[9]张克绪,谢君斐.土动力学[M].北京:地震出版社,1989
[10]张克绪,李明宰,王治琨.基于非曼辛准则的土动弹塑性模型[J].地震工程与工程震动,1997,17(2):74-80(Zhang Kexu,Li Mingzai,Wang Zhikun.Dynamic elastic-plastic models of soils based on non-mansing s rule[J].Journal of Earthquake Engineering and EngineeringVibration,1997,17(2):74-80(in Chinese))
[11]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,2007
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