广东科学中心E区隔震支座监测预警指标研究与应用
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摘要
通过实测数据处理及结构有限元模拟分析,给出了广东科学中心隔震支座健康监测一级、二级预警指标。基于隔震支座界限特性,建立了其压缩状态下的水平界限位移变形公式,并结合罕遇地震作用下隔震元件的水平位移变形控制,提出了三级、四级预警指标,为工程预警系统设置提供有效参数。
Through the measured data processing and the finite element analysis of the structure,the primary and secondary level early-warning indices are given for the health monitoring of isolation bearings in Guangdong Science Center.Based on the boundary characteristics of isolation bearings,a formula for the horizontal boundary displacement of the isolation bearing under vertical compression is deduced.Referring to the control value of the isolation bearing deformation under the rare earthquake,the third and Fourth level early-warning parameters are set up,which may provide effective parameters for the early-warning system setting.
Through the measured data processing and the finite element analysis of the structure,the primary and secondary level early-warning indices are given for the health monitoring of isolation bearings in Guangdong Science Center.Based on the boundary characteristics of isolation bearings,a formula for the horizontal boundary displacement of the isolation bearing under vertical compression is deduced.Referring to the control value of the isolation bearing deformation under the rare earthquake,the third and Fourth level early-warning parameters are set up,which may provide effective parameters for the early-warning system setting.
引文
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[2]Ko J M,Ni Y Q.Technology developments in structural health monitoring of large-scale bridges[J].Engineering Structures,2005,27:1715―1725.
[3]张季超,曾华健,童华炜,许勇.广东科学中心饱和淤泥质砂土地基预处理技术的研究与应用[J].广州大学学报(自然科学版),2007,6(5):62―67.Zhang Jichao,Zeng Huajian,Tong Huawei,Xu Yong.Research and application of saturated silt sandy soil ground prevention technique in Guangdong Science Center[J].Journal of Guangzhou University(Natural Science Edition),2007,6(5):62―67.(in Chinese)
[4]王亦斌,庞永师,李军红,于茜薇,陈德义.广东科学中心工程高新技术应用研究[J].广州大学学报(自然科学版),2008,7(5):71―74.Wang Yibin,Pang Yongshi,LI Junhong,Yu Qianwei,Chen Deyi.Study on the new engineering-technique application of Guangdong Science Center[J].Journal of Guangzhou University(Natural Science Edition),2008,7(5):71―74.(in Chinese)
[5]CECS126:2001,叠层橡胶支座隔震技术规程[S].北京:中国建筑工业出版社,2001.CECS126:2001,Technical specification for seismic-isolation with laminated rubber bearing isolators[S]Beijing:China Building Industry Press,2001.(in Chinese)
[6]刘文光,杨巧荣,周福霖,冯德民.橡胶座非线性弹性界限特性和屈曲特性理论和实验研究[J].地震工程与工程振动,2004,24(3):5―10.Liu Wenguang,Yang Qiaorong,Zhou Fulin,Feng Demin.Nonlinear elastic extreme and buckling theory and experiment research on rubber isolators[J].EarthquakeEngineering and Engineering Vibration,2004,24(3):5―10.(in Chinese)
[7]金建敏,谭平,黄襄云,庄学真,沈朝勇.铅芯橡胶支座微分型恢复力模型屈服前刚度的研究[J].广州大学学报(自然科学版),2008,7(1):87―90.Jin Jianmin,Tan Ping,Huang Xiangyun,Zhuang Xuezhen,Shen Chaoyong.Study on preyield shear stiffness of differential restoring force model of lead rubber bearing[J].Journal of Guangzhou University(Natural Science Edition),2008,7(1):87―90.(in Chinese)
[8]Antonio D Lanzo.On elastic beam models for stability analysis of multilayered rubber bearings[J].International Journal of Solids and Structures,2004,41:5733―5757
[9]刘文光,杨巧荣,冯德民.橡胶座非线性弹性压缩特性的理论和实验研究[J].地震工程与工程振动,2003,23(5):12―21.Liu Wenguang,Yang Qiaorong,Feng Demin.Theoretical and experimental studies on nonlinear elastic compression property of rubber isolators[J].Earthquake Engineering and Engineering Vibration,2003,23(5):12―21.(in Chinese)
[10]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.GB50011-2001,Code for seismic design of buildings[S].Beijing:China Building Industry Press,2001.(in Chinese)
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