基于玻璃珠–砂垫层的岩土隔震系统振动台试验研究

doi:10.13722/j.cnki.jrme.2019.1138

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摘要为了保护农村房屋免受地震破坏，提出一种基于玻璃珠–砂垫层的岩土隔震系统(简称GSI-GBSC)，即在结构基础与地基土之间回填玻璃珠–砂垫层材料进行隔震。对有、无隔震系统的单层砌体结构模型开展考虑场地的大比例振动台模型试验，单层砌体结构模型缩尺比例为1/4。选取1940年记录到的El-Centro波南北分量作为输入波，输入加速度幅值分别为0.1 g，0.2 g，0.4 g。试验结果表明：在小震时，GSI-GBSC系统的隔震效果不明显，随着地震量级的增大隔震效果也随之增强；在输入加速度幅值为0.4 g时，GSI-GBSC系统使结构的屋面板加速度反应以及层间位移反应分别减小了50%和47.5%；即该隔震系统可以显著减少上部结构的地震反应，实现隔震的目的。

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	景立平1
	2
	3
	尹志勇1
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	孙海峰4
	董瑞1
	2
	徐琨鹏1
	2
	程新俊5

关键词 ：土力学；岩土隔震；玻璃珠&ndash, 砂垫层；振动台试验；叠层剪切箱；砌体结构

Abstract：In this paper，a geotechnical seismic isolation system(GSI-GBSC) based on glass bead-sand cushions is proposed to protect structures against the destroying effects of earthquakes，which is to backfill the glass bead-sand cushion material between the structural foundation and the foundation soil for isolation. A large-scale shaking table model test which considers the field was carried out through the single-layer masonry structure model with and without isolation system. The scale ratio of the single-layer masonry structure model was 1/4. The north-south component of the El-Centro wave recorded in 1940 was selected as the input wave，and the peak input acceleration(PIA) was adjusted to 0.1 g，0.2 g and 0.4 g respectively. The test results show that the isolation effect of GSI-GBSC system is not significant enough when the minor earthquake occurs but the isolation effect strengthens with enhancing the earthquake intensity. When PIA is 0.4 g，the GSI-GBSC system decreases the roof acceleration and the inter-story drift of the structure by 50% and 47.5%，respectively，which means the GSI-GBSC system can significantly reduce the earthquake response of the superstructure and achieve seismic isolation.

Key words： soil mechanics')" href="#">

soil mechanics geotechnical seismic isolation glass bead-sand cushions shaking table test laminated shear box ')" href="#">masonry structure

引用本文:

景立平1，2，3，尹志勇1，2，孙海峰4，董瑞1，2，徐琨鹏1，2，程新俊5. 基于玻璃珠–砂垫层的岩土隔震系统振动台试验研究[J]. 岩石力学与工程学报, 2020, 39(7): 1458-1467.
JING Liping1，2，3，YIN Zhiyong1，2，SUN Haifeng4，DONG Rui1，2，XU Kunpeng1，2，CHENG Xinjun5. Shaking table test of geotechnical seismic isolation system based on glass bead-sand cushions#br#. , 2020, 39(7): 1458-1467.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2019.1138 或 http://rockmech.whrsm.ac.cn/CN/Y2020/V39/I7/1458

[3]	ATHANASIOS A M，GEORGE S，GEORGE D M. Stochastic response of structures with hybrid base isolation systems[J]. Engineering Structures，2018，172：629-643.
[1]	MAKOTO O，TOMOSHI M，MASAYUKI K，et al. Finite-element analysis of laminated rubber bearing of building frame under seismic excitation[J]. Earthquake Engineering and Structural Dynamics，2015，44(11)：1 881-1 898.
[4]	IOANNIS V K，MICHAEL C C，ANDREW S W. Modeling strength degradation in lead-rubber bearings under earthquake shaking[J]. Earthquake Engineering and Structural Dynamics，2010，39(13)： 1 533-1 549.
[6]	尚守平，姚菲，刘可. 一种新型隔震层的构造及其振动台试验研究[J]. 土木工程学报，2011，44(2)：36-41.(SHANG Shouping，YAO Fei，LIU Ke. Study of the structure of a new type of isolation layer and shaking table test[J]. China Civil Engineering Journal，2011，44(2)：36-41.(in Chinese))
[8]	TSANG H H. Seismic isolation by rubber-soil mixtures for developing countries[J]. Earthquake Engineering and Structural Dynamics，2008，37(2)：283-303.
[9]	TSANG H H，LO S H，XU X，et al. Seismic isolation for low- to-medium-rise buildings using granulated rubber-soil mixtures：numerical study[J]. Earthquake Engineering and Structural Dynamics，2012，41(14)：2 009-2 024.
[10]	TSANG H H，PITILAKISB K. Mechanism of geotechnical seismic isolation system：Analytical modeling[J]. Soil Dynamics and Earthquake Engineering，2019，122：171-184.
[2]	LU X L，WANG D，WANG S S. Investigation of the seismic response of high-rise buildings supported on tension-resistant elastomeric isolation bearings[J]. Earthquake Engineering and Structural Dynamics，2016，45(13)：2 207-2 228.
[5]	曹万林，叶炜，张玉山，等. 玻璃珠-石墨基础滑移隔震砌体结构工作性能试验研究[J]. 自然灾害学报，2015，(5)：37-46.(CAO Wanlin，YE Wei，ZHANG Yushan，et al. Experimental study on working performance of the base sliding isolated masonry structure with glass beads-graphite layer[J]. Journal of Natural Disasters，2015，(5)：37-46.(in Chinese))
[7]	李英民，卜长明，刘凯，等. 简易消能减震砌体结构模型振动台试验[J]. 重庆大学学报，2013，36(6)：46-52.(LI Yingmin，BU Changming，LIU Kai，et al. Shaking table experiment on a simple energy dissipation masonry structure[J]. Journal of Chongqing University，2013，36(6)：46-52.(in Chinese))
[12]	刘方成，陈璐，王海东. 橡胶砂动剪模量和阻尼比循环单剪试验研究[J]. 岩土力学，2016，37(7)：1 903-1 913.(LIU Fangcheng，CHEN Lu，WANG Haidong. Experimental study on dynamic shear modulus and damping ratio of sand-rubber mixture by cyclic simple shear test[J]. Rock and Soil Mechanics，2016，37(7)：1 903-1 913.(in Chinese))
[14]	FENG Z Y，SUTTER K G. Dynamic properties of granulated rubber-sand mixtures[J]. Geotechnical Testing Journal，2000，23(3)：338-344.
[15]	SENETAKIS K，ANASTASIADIS A，PITILAKIS K. Dynamic properties of dry sand/rubber(SRM) and gravel/rubber (GRM) mixtures in a wide range of shearing strain amplitudes[J]. Soil Dynamics and Earthquake Engineering，2012，33(1)：38-53.
[17]	熊伟，曾庆豪，尚守平，等. 新型岩土隔震系统试验研究[J]. 筑结构学报，2010，31(增2)：39-45.(XIONG Wei，ZENG Qinghao，SHANG Shouping，et al. Experimental study on innovative geotechnical seismic isolation system[J]. Journal of Building Structures，2010，31(Supp.2)：39-45.(in Chinese))
[11]	刘方成，杨峻，王海东. 大应变下干燥橡胶砂动力特性试验研究[J]. 岩石力学与工程学报，2016，35(增2)：4 265-4 278.(LIU Fangcheng，YANG Jun，WANG Haidong. Experimental study on dynamic characteristics of dry rubber-sand mixture at large strains[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35( Supp.2)：4 265-4 278.(in Chinese))
[21]	张敏政. 地震模拟实验中相似律应用的若干问题[J]. 地震工程与工程振动，1997，(2)：52-58.(ZHANG Minzheng. Study on similitude laws for shaking table tests[J]. Earthquake Engineering and Engineering Vibration，1997，(2)：52-58.(in Chinese))
[13]	刘方成，吴孟桃，刘娜，等. 橡胶砂泊松比试验研究[J]. 岩石力学与工程学报，2017，36(增1)：3 596-3 606.(LIU Fangcheng，WU Mengtao，LIU Na，et al. Experimental study on Poisson¢s ratio of rubber-sand mixtures[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(Supp.1)：3 596-3 606.(in Chinese))
[16]	ANASTASIADIS A，SENETAKIS K，PITILAKIS K. Small-strain shear modulus and damping ratio of sand-rubber and gravel-rubber mixtures[J]. Geotechnical and Geological Engineering，2012，30(2)：363-382.
[19]	刘方成，张永富，周亚栋. 土工格室加筋橡胶砂垫层隔震试验研究[J]. 建筑结构学报，2016，37(增1)：93-100.(LIU Fangcheng，ZHANG Yongfu，ZHOU Yadong. Experimental study on isolating performance of geo-cell reinforced rubber-sand mixture cushion[J]. Journal of Building Structures，2016，37(Supp.1)：93-100.(in Chinese))
[18]	刘方成，任东滨，刘娜，等. 土工格室加筋橡胶砂垫层隔震效果数值分析[J]. 土木工程学报，2015，48(增1)：109-118.(LIU Fangcheng，REN Dongbin，LIU Na，et al. Numerical analysis of isolating effect of geo-cell reinforced rubber sand mixture cushion[J]. China Civil Engineering Journal，2015，48(Supp.1)：109-118.(in Chinese))
[20]	孙海峰，景立平，王宁伟，等. 振动台多功能叠层剪切箱研制[J]. 岩石力学与工程学报，2011，30(12)：2 498-2 506.(SUN Haifeng，JING Liping，WANG Ningwei，et al. Development of multifunctional laminar shear container for shaking table test[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(12)：2 498-2 506.(in Chinese))