基于隔震结构平移-摇摆耦合模型建立核电厂隔震结构的运动方程，提出支座受拉地震动峰值界限公式，并分析了高宽比和隔震周期对峰值界限影响规律。根据某核电厂结构设计了1:10的振动台试验缩尺模型，分别进行了核电厂隔震结构在单向、双向和三向地震输入下的振动台试验和数值分析，结果表明隔震技术能有效降低核电厂上部结构的地震响应，在单向和双向输入下，上部结构具有良好减震效果，水平向各层加速度反应谱峰值较台面输入峰值降低且结构主频向低频移动。在超设计地震输入下，隔震支座存在受拉现象。并进一步对核电厂隔震结构振动台模型进行数值分析、试验结果及支座受拉临界输入理论对比，结果显示理论公式、数值分析及试验结果一致。
Abstract
The motion equation of a base-isolated nuclear power plant structure in consideration of uplift and rocking effects was established.The formula for the bound of earthquake input when the bearings were in tension was obtained.The effect of high-width ratio and isolation period on the peak bound was analyzed.Shaking table tests and numerical simulations on the base-isolated nuclear power plant structure were conducted with a 1/10 scale model under one-way, two-way and three-way earthquake input.The analysis results show that the seismic isolation technology can effectively reduce the seismic response of the upper structure.The horizontal peak accelerations of the upperstructure are less than those of the table under one-way and two-way earthquake input.The peak accelerations in the horizontal response spectrum move toward low frequency.The phenomenon of rubber bearings in tension can be observed when the earthquake input is beyond the designed one.The bound of earthquake input obtained by the analysis was compared with the results of model tests and numerical simulations, and it is found they are in good agreement.
关键词
核电厂 /
支座受拉 /
振动台试验 /
地震响应
{{custom_keyword}} /
Key words
nuclear power plant /
tension of bearing /
shaking table test /
seismic response
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 谢礼力. 核电工程应用隔震技术的可行性探究[J].地震工程与工程振动，2012,32(1):1-10.
XIE Lili. A prospective study on applicability of base isolation in nuclear power plants[J]. Earthquake Engineering and Engineering Vibration, 2012, 32(1)：1-10.
[2] TANAKA T. The development of seismic-isolated APWR plants[C]// Proceedings of 16th International Conference on Structural Mechanics in Reactor Technology. Okinawa: International Committee on Reactor Structural Mechanics, 2001.
[3] CAL. Seismic base isolation for nuclear facilities[C]// Proceedings of 10th International Conference on Structural Mechanics in Reactor Technology. Los Angeles :International Committee on Reactor Structural Mechanics,1989.
[4] NARA. Seismic isolation, passive energy dissipation and active control of Vibrations of structures[C]// Proceedings of 13th International Conference on Structural Mechanics in Reactor Technology. Los Angeles: International Committee on Reactor Structural Mechanics, 1995.
[5] Coladant Ch. Seismic isolation of nuclear power plants – EDF’s philosophy[J].Nuclear Engineering and Design, 1991, 127: 243-251.
[6] 刘浩吾.核建筑与普通建筑隔震技术的进展[C]//第七届全国反应堆结构力学会议论文集.上海:中国力学学会反应堆结构力学专业委员会, 1992.
LIU Haowu.Progress in isolation technology of nuclear buildings and common buildings[C].The 7th national reactor structural mechanics conference, 1992.
[7] Kato, Watanabe, Suhara, Shirahama.Design study of the seismic-isolated reactor building of demonstration FBR plant in Japan. SMiRT-13, Japan, 1995.
[8] Mitsuru Kageyama, Tsutomu Iba, Katsuhiko Umeki, Takahiro Somaki, Satoshi Moro. Development of three-dimensional base isolation system with cable reinforcing air spring.SMiRT-17, Japan, 2003.
[9] GENOVA, BOLOGNA. A sensitivity investigation upon the dynamic structural response of a nuclear plant on aseismic isolating devices[C]// Proceedings of 16th International Conference on Structural Mechanics in Reactor Technology. Okinawa: International Committee on Reactor Structural Mechanics, 2001.
[10] 李冬梅.某核电厂安全壳的隔震地震反应分析[D]. 哈尔滨:哈尔滨工程大学，2007.
LI Dongmei. Seismic response analysis of the containment of a nuclear power plant[D]. Harbin :HarbinEngineering University, 2007.
[11] 曾奔,周福霖,徐忠根.基于功率谱密度函数法的核电厂房增加隔震措施后的楼层反应谱分析[J]. 核动力工程，2009,30(3):13-16.
ZENG Ben，ZHOU Fulin，XU Zhonggen. Floor response spectra analysis of nuclear reactor buildings with additional base-isolation measures based on PSDF[J]. Nuclear Power Engineering, 2009, 30(3): 13-16.
[12] 花磊.核电厂的三维减震分析模型及地震响应研究[D]. 上海:上海大学，2010.
HUA Lei.Three-dimensional seismic analysis model and seismic response study of nuclear power plant[D]. Shanghai: ShanghaiUniversity, 2010.
[13] 马永宏.三维减震装置的力学性能及核电厂结构的三维减震分析研究[D]. 上海:上海大学，2011.
MAYonghong.The mechanical properties of three-dimensional shock absorber and three-dimensional seismic analysis of nuclear power plant structure[D]. Shanghai: ShanghaiUniversity, 2011.
[14] 王飞. 核电厂整体基础隔震系统的理论与试验研究[D].中国地震局工程力学研究所，2013.
WANG Fei.Theoretical and experimental study on the whole basic isolation system of nuclear power plant[D].Institute of Engineering Mechanics, China Earthquake Administration, 2013.
[15] 王涛，王飞，丁路通.核电厂三维隔震技术的理论和试验研究[J]. 土木工程学报，2012,S1:238-242．
WANG Tao，WANG Fei，DING Lutong. Theoretical and experimental study on three-dimensional base-isolated nuclear power plant[J]. China Civil Engineering Journal, 2012, S1: 238-242.
[16] 王涛，王飞，丁路通. 采用三维隔震技术的核电厂抗震性能研究[A]. 中国力学学会反应堆结构力学专业委员会.第十七届全国反应堆结构力学会议论文集[C].中国力学学会反应堆结构力学专业委员会：，2012:6.
[17] 王涛,王飞,侯钢领等. 核电厂隔震结构的振动台试验研究[J]. 工程力学，2014,10:62-68+84.
WANG Tao，WANG Fei，HOU Gangling etal. Shaking table tests on base-isolated nuclear power plant[J]. Engineering Mechanics, 2014, 10: 62-68+84.
[18] 刘文光. 橡胶隔震支座力学性能及隔震结构地震反应分析研究[D].北京:北京工业大学，2003.
LIU Wenguang. Mechanical properties of rubber bearings and earthquake responseanalysis of isolation structure[D].Beijing: Beijing University of Technology, 2003.
[19] 张强，刘文光，何文福等. 隔震结构的强震观测及数值响应分析结果[J].结构工程师，2012,28(3):109-116.
ZHANG Qiang, LIU Wenguang, HE Wenfu. Strong Motion Observation and Numerical Response Analysis of Isolation Structures[J]. Structural Engineers. 2012, 28（3）: 109-116.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
PDF(1339 KB)
