Abstract：Ordinary isolated structure exists excessive displacement of isolation layer, bearing damage and even the collision of isolated structure and retaining walls under beyond-design basis earthquake. This paper puts forward a curved surface isolated structure system which using the surface characteristics of the isolation layer and the gravity effect of the structure to reduce the displacement of the isolation layer. A simplified single-particle model of the curved surface isolated structure is set up which the isolators are arranged inclined and the acceleration transfer factor and displacement transfer factor are analyzed theoretically. Finally, a five-story steel frame model of curved surface isolated structure is produced and the shaking table tests are conducted on the curved surface isolated structure model, normal isolated structure and non-isolated structure. The test results show that the acceleration response of the curved surface isolated structure is increased but the displacement of the isolation layer in reduced compare to the normal isolated structure, and the acceleration response of the curved surface isolated structure is obviously reduced relative to the non-isolated structure.
田坤，刘文光，孙实，何文福. 曲面隔震结构的动力模型与振动台试验研究[J]. 振动与冲击, 2019, 38(9): 35-43.
TIAN Kun, LIU Wenguang, SUN Shi, HE Wenfu. Dynamic model and shaking table tests for curved surface isolated structures. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(9): 35-43.
[1]Gent A N, Lindley P B. The compression of bonded rubber blocks. Proceedings of the Institution of Mechanical Engineers, 1959, 173(1): 111-122.
[2]Gent A N, Meinecke E A. Compression, bending, and shear of bonded rubber blocks. Polymer Engineering & Science, 1970, 10(1): 48-53.
[3]Gent A N, Henry R L, Roxbury M L. Interfacial stresses for bonded rubber blocks in compression and shear. Journal of Applied Mechanics, 1974, 41(4): 855-859.
[4]Takayama M, Morita K. Ultimate Deformation capacity of lead rubber bearing under compression. Fukuoka University Review of Technological Sciences, 2003: 177-188.
[5]Abe M, Yoshida J, Fujino Y. Multiaxial behaviors of laminated rubber bearings and their modeling. I: experimental study[J]. Journal of Structural Engineering, 2004, 130(8): 1119-1132.
[6]Abe M, Yoshida J, Fujino Y. Multiaxial behaviors of laminated rubber bearings and their modeling. II: Modeling[J]. Journal of Structural Engineering, 2004, 130(8): 1133-1144.
[7]张子翔, 叶昆, 朱宏平. 橡胶隔震支座的统一力学模型[J]. 地震工程与工程振动, 2014, 01(2):167-171.
ZHANG Zixiang, YE Kun, ZHU Hongping. A generalized mechanical model for elastomeric bearings[J]. Earthquake Engineering and Engineering Dynamics, 2014,01(2):167-171.
[8]吕西林, 朱玉华,施卫星等. 组合基础隔震房屋模型振动台试验研究[J]. 土木工程学报, 2001, 34(2): 43-49.
LU Xilin, ZHU Yuhua, SHI Weixing, et al. Shaking table test of building models with comined isolation system[J]. China Civil Engineering Journal, 2001, 34(2): 43-49.
[9]吴香香,孙丽,李宏男.竖向地震动对隔震结构高宽比限值的影响分析[J].沈阳建筑工程学院学报(自然科学版), 2002,18(2)：81-84.
WU Xiangxiang, SUN Li, LI Hongnan. Analysis of Effect of Vertical Motion on the Limit Ratio of Height to Width of Base Isolated Structures[J]. Journal of Shenyang Architectural and Civil Engineering University(Nature Science), 2002,18(2)：81-84.
[10]Kaplan H, Seireg A. Optimal design of a base isolated system for a high-rise steel structure[J]. Earthquake Engineering and Structural Dynamics, 2001, 30(2): 287-302.
[11]Ariga T, Kanno Y, Takewaki I. Resonant behaviour of base-isolated high-rise buildings under long-period ground motions[J]. Structural Design of Tall and Special Buildings, 2006, 15(3): 325-338.
[12]Ikeda Y, Nagahashi S. Analysis Of space frame vibration of earthquake response of base isolated high-rise building, with flexural rigidity of earthquake-resistant walls and floor slabs taken into consideration: a study on the effects of simultaneous action input from horizontal and vertical ground motion on earthquake response characteristics of base isolated high-rise building, part 1[J], Journal of Structural and Construction Engineering, 2007,(620): 17–26.
[13]Ikeda Y, Nagahashi S.. Earthquake response characteristics on uplift of multilayered elastomeric isolator of base isolated high-rise building with setback elevation: a study on the effects of simultaneous action input from horizontal and vertical ground motion on earthquake response characteristics of base isolated high-rise building, part 2[J], Journal of Structural and Construction Engineering,2010, 75(651): 913–922.
[14]Ikeda Y, Nagahashi S. The effects of horizontal and vertical strong motion characteristics on tension of the isolator of base isolated high-rise building with setback and regular shape elevation[C]. Summaries of technical papers of Annual Meeting Architectural Institute of Japan. B-2, Structures II, Structural dynamics nuclear power plants 2010, 259-260.
[15]Ikeda Y, Nagahashi S.. A study on the strong ground motion characteristics due to the 2011 Christchurch earthquake with respect to the tension response of the isolator of high-rise buildings with large aspect ratio[C]. Summaries of technicalpapers of Annual Meeting Architectural Institute of Japan. B-2, Structures II, Structural dynamics nuclear power plants 2011, 589–590
[16]何文福, 霍达,刘文光,等. 高层隔震结构振动台试验及数值分析[J]. 北京工业大学学报, 2010, 36(3): 334-339.
HE Wenfu, HUO Da, LIU Wenguang, et al. Experimental Study and Numerical Analysis of High Rise Isolated Structure[J]. Journal of Beijing University of Technology, 2010, 36(3): 334-339.
[17]刘文光, 刘阳, 杨巧荣, 等. 高层隔震结构单质点模型的地震响应单纯质点法研究[J]. 振动工程学报, 2013, 25(6): 693-698.
LIU Wenguang, LIU Yang, YANG Qiaorong, et al. A Study on Pure Mass Model Method for Seismic Response of Single Mass Model of High-rise Isolated Structure[J]. Journal of Vibration Engineering, 2013, 25(6): 693-698.
[18]刘阳, 刘文光, 何文福,等. 复杂博物馆隔震结构地震模拟振动台试验研究[J]. 振动与冲击, 2014, 33(4):107-112.
LIU Yang, LIU Wenguang, HE Wenfu, et al. Shaking table test for a complex meseum’s isolated structure[J]. Journal of Vibration and Shock,2014,33(4):107-112.
[19]朱宏平, 张子翔, 周方圆. 基础隔震结构在近断层水平-竖向地震联合作用下的动力响应[J]. 土木工程与管理学报, 2017, 34(3):1-7.
ZHU Hongping, ZHANG Zixiang, ZHOU Fangyuan. Seismic response of base-isolated structures under the combined action of horizontal and vertical components of near-fault ground motions[J]. Journal of Civil Engineering and Management, 2017,34(3):1-7.
[20]刘晶波. 结构动力学[M]. 机械工业出版社, 2005.
LIU Jingbo. Structural dynamics[M]. China Machine Press, 2005.
