核筒悬挂结构体系自振特性研究
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摘要
对高层建筑核筒式悬挂结构的动力特性进行了理论与振动台试验研究。推导了相应公式,编制了计算程序Hangsys;在模拟地震振动台上通过正弦波扫描和激振器激励对结构的自振特性进行了试验研究。理论计算和试验结果符合较好。结果表明,核筒悬挂结构具有较低的自振频率,具有良好的抗震性能。
Theoretical and shaking table test studies of the dynamic behavior of a core-wall suspension structures are performed. Formulas are given and a program Hangsys is developed using Matlab. Experimental results are obtained using sine wave scan and vibration exciter on shaking table. It is shown that the frequencies and modes are in satisfactory agreement between the analytical and experimental results. The first frequency of the suspension structure is much lower and the structure has better aseismic performance.
Theoretical and shaking table test studies of the dynamic behavior of a core-wall suspension structures are performed. Formulas are given and a program Hangsys is developed using Matlab. Experimental results are obtained using sine wave scan and vibration exciter on shaking table. It is shown that the frequencies and modes are in satisfactory agreement between the analytical and experimental results. The first frequency of the suspension structure is much lower and the structure has better aseismic performance.
引文
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[2]刘大海,杨翠如.高层建筑结构方案选优[M].北京:中国建筑工业出版社,1996.LiuDahai,YangCuiru.Optimum structural schemes of tall buildings[M].Beijing:ChinaArchitecture&BuildingPress,1996.(inChinese)
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[4]周坚,刘娜,伍孝波.竖筒悬挂减振体系试验模型的设计与制作[J].北京建筑工程学院学报,2002,18(4):48-52.ZhouJian,LiuNa,WuXiaobo.Model design and construction of vibration absorption system for high-rise building suspension structures[J].Journal ofBeijingInstitute ofCivilEngineering andArchitecture,2002,18(4):48-52.(inChinese)
[5]周坚,伍孝波,刘娜.高层建筑悬挂结构体系动力分析[J].北京建筑工程学院学报,2003,19(4):1-8.ZhouJian,WuXiaobo,LiuNa.Dynamic analysis of suspension structure systems of high-rise buildings[J].Journal ofBeijingInstitute ofCivilEngineering andArchitecture,2003,19(4):1-8.(inChinese)
[6]伍孝波.核筒悬挂结构阻尼减振性能理论和试验研究[D].北京:北京建筑工程学院,2003.WuXiaobo.Theoretical and experimental study of aseismic performance of core-wall suspension structures[D].Beijing:BeijingInstitute ofCivilEngineering andArchitecture,2003.(inChinese)
[7]包世华.新编高层建筑结构[M].北京:中国水利水电出版社,2001.BaoShihua.Structure of high-rise buildings(new edition)[M].Beijing:ChinaWaterConservancy andHydropowerPress,2001.(inChinese)
[8]刘郁馨,吕志涛,张旭.悬挂核筒建筑结构的动力性能研究[J].计算力学学报(增刊),1994,(14):229-232.LiuYuxin,LuZhitao,ChangXu.Study of dynamic and stable characteristics for suspended core-tube building structures[J].Journal ofComputationalMechanics,1994,(14):229-232.(inChinese)
[9]杨允表,石洞,宋启根.核心单筒式高层悬挂结构考虑土-结构相互作用的动力分析[J].地震工程与工程振动,1999,19(2):64-70.YangYunbiao,ShiDong,SongQigen.Dynamic analysis of hanging structure of tall building with single core tube considering interaction between soil and structure[J].EarthquakeEngineering andEngineeringVibration,1999,19(2):64-70.(inChinese)
[10]GB50011-2001.中华人民共和国国家标准--建筑抗震设计规范[S].GB50011-2001,Code forSeismicDesign ofBuildings ofP.R.China[S].(inChinese)
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