带加强层的高层框架-变截面核心筒结构的自由振动分析
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摘要
在一些假定的基础上,运用结构动力学关于分布参数体系的振动理论,考虑核心筒变刚度和加强层弯曲变形的影响,对带有水平加强层体系的高层框架-核心筒结构进行动力分析,编制了计算机算法程序,并根据核心筒与外排柱刚度之比、核心筒与水平加强层刚度之比以及加强层位置以上部分核心筒与加强层位置以下部分核心筒刚度之比的不同取值,得出了该体系前3阶振型频率与加强层位置的关系,为合理设计加强层提供了参考。
Based on some assumptions,the free vibration frequency of the structures with an outrigger was analyzed.And depended on different values of the stiffness ratio of core-column,the stiffness ratio of core-outrigger and the stiffness ratio of tube,the relation between the location of the outrigger and the free vibration frequency was inferred through a computer program.The equal-parameter distribution theory of the structural dynamics was used and the influences of core wall with changing stiffness and outrigger flexure were considered.The results give some reference for rational outrigger designing.
Based on some assumptions,the free vibration frequency of the structures with an outrigger was analyzed.And depended on different values of the stiffness ratio of core-column,the stiffness ratio of core-outrigger and the stiffness ratio of tube,the relation between the location of the outrigger and the free vibration frequency was inferred through a computer program.The equal-parameter distribution theory of the structural dynamics was used and the influences of core wall with changing stiffness and outrigger flexure were considered.The results give some reference for rational outrigger designing.
引文
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[16]CHOPRA A K.Dynamics of Structures-theory andApplications to Earthquake Engineering[M].2nd ed.Beijing:Tsinghua University Press,2005.
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[2]熊军,赵喜庆.高层建筑水平加强层体系考虑加强层弯曲影响的自由振动分析[J].四川建筑科学研究,2000,26(3):5-8.XIONG Jun,ZHAO Xi-qing.The Free Vibration A-nalysis of Tall Building with an Outrigger Which Ben-ding Was Thought Over[J].Building Science Re-search of Sichuan,2000,26(3):5-8.
[3]楼梦麟,李守继.低矮小开口剪力墙自由振动问题的半解析解[J].建筑科学与工程学报,2006,23(3):50-53.LOU Meng-lin,LI Shou-ji.Semi-analytical Solutionfor Free Vibration of Short Shear Wall with Small O-penings[J].Journal of Architecture and Civil Engi-neering,2006,23(3):50-53.
[4]孟海,姚谦峰,黄炜.密肋复合墙体弹性刚度试验及计算分析[J].建筑科学与工程学报,2006,23(3):14-20.MENG Hai,YAO Qian-feng,HUANG Wei.Analysisof Experiment and Calculation of Elastic Rigidity ofMulti-rib Slab Composite Wall[J].Journal of Archi-tecture and Civil Engineering,2006,23(3):14-20.
[5]沈蒲生.高层建筑结构疑难释义[M].北京:中国建筑工业出版社,2003.SHEN Pu-sheng.Explaination of Questions for TallBuilding Structures[M].Beijing:China Architecture&Building Press,2003.
[6]王锁军,王元清,吴杰,等.组合梁刚度对组合框架的抗震性能影响分析[J].建筑科学与工程学报,2006,23(1):39-44.WANG Suo-jun,WANG Yuan-qing,WU Jie,et al.A-nalysis of Composite Beam Rigidity Influencing Seis-mic Properties of Composite Frame[J].Journal of Ar-chitecture and Civil Engineering,2006,23(1):39-44.
[7]沈蒲生.高层建筑结构设计[M].北京:中国建筑工业出版社,2006.SHEN Pu-sheng.Design of Tall Building Structures[M].Beijing:China Architecture&Building Press,2006.
[8]易伟建,张颖.混凝土框架结构抗震设计的弯矩增大系数[J].建筑科学与工程学报,2006,23(2):46-51.YI Wei-jian,ZHANG Ying.Moment MagnificationFactor in Anti-seismic Design of Concrete FrameStructure[J].Journal of Architecture and Civil Engi-neering,2006,23(2):46-51.
[9]克拉夫R,彭津J.结构动力学[M].王光远,译.2版.北京:高等教育出版社,2006.CLOUGH R,PENZIEN J.Dynamics of Structures[M].Translated by WANG Guang-yuan.2nd ed.Bei-jing:Higher Education Press,2006.
[10]黄世敏,魏琏,衣洪建,等.高层建筑中水平加强层最优位置的研究[J].建筑科学,2003,19(2):4-6.HUANG Shi-min,WEI Lian,YI Hong-jian,et al.Study on Optimum Location of Horizontal Strength-ened Stories for High-rise Structures[J].Building Sci-ence,2003,19(2):4-6.
[11]刘伯权,潘元.框架-抗震墙结构抗震墙抗弯刚度的优化研究[J].建筑科学与工程学报,2005,22(1):55-57.LIU Bo-quan,PAN Yuan.Study on Optimum BendingRigidity of Seismic Wall in Frame-shear Wall Struc-ture[J].Journal of Architecture and Civil Engineer-ing,2005,22(1):55-57.
[12]赵西安.现代高层建筑结构设计[M].北京:科学出版社,2000.ZHAO Xi-an.Design of Modern High-rise BuildingStructures[M].Beijing:Science Press,2000.
[13]沈蒲生,孟焕陵.框筒结构梁柱截面基于剪力滞最小的合理高度[J].建筑科学与工程学报,2005,22(3):16-19.SHEN Pu-sheng,MENG Huan-ling.Reasonable Sec-tion Height of Beam and Column Based on the Mini-mum Shear Lag in Framed Tube Structures[J].Jour-nal of Architecture and Civil Engineering,2005,22(3):16-19.
[14]徐培福,傅学怡,王翠坤.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005.XU Pei-fu,FU Xue-yi,WANG Cui-kun.Design ofComplex Tall Building Structures[M].Beijing:ChinaArchitecture&Building Press,2005.
[15]沈蒲生,刘杨.水平地震作用下框支剪力墙结构的变形研究[J].建筑科学与工程学报,2005,22(1):58-63.SHEN Pu-sheng,LIU Yang.Distortion Research ofShear Wall Structure Supported on Frame UnderEarthquake Actions[J].Journal of Architecture andCivil Engineering,2005,22(1):58-63.
[16]CHOPRA A K.Dynamics of Structures-theory andApplications to Earthquake Engineering[M].2nd ed.Beijing:Tsinghua University Press,2005.
[17]谭浩强,田淑清.FORTRAN语言-FORTRAN77结构化程序设计[M].北京:清华大学出版社,2002.TAN Hao-qiang,TIAN Shu-qing.FORTRAN Lan-guage and Structured Programming in FORTRAN77[M].Beijing:Tsinghua University Press,2002.
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