[1]于旭,庄海洋,刘帅.软弱场地上考虑SSI效应的隔震结构水平向减震系数研究[J].世界地震工程,2017,33(03):183-191.
 YU Xu,ZHUANG Haiyang,LIU Shuai.Investigation into the seismic reduction factor of isolated structure with SSI effect on soft sites[J].,2017,33(03):183-191.
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软弱场地上考虑SSI效应的隔震结构水平向减震系数研究
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《世界地震工程》[ISSN:/CN:]

卷:
33
期数:
2017年03期
页码:
183-191
栏目:
出版日期:
2017-09-23

文章信息/Info

Title:
Investigation into the seismic reduction factor of isolated structure with SSI effect on soft sites
作者:
于旭12 庄海洋2 刘帅2
1. 南京工程学院 建筑工程学院, 江苏 南京 211167;
2. 南京工业大学 交通学院, 江苏 南京 210009
Author(s):
YU Xu12 ZHUANG Haiyang2 LIU Shuai2
1. Department of Civil Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
2. Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, China
关键词:
隔震结构软弱场地水平向减震系数SSI效应
Keywords:
isolated structuresoft siteseismic reduction factorsoil-structure interaction
分类号:
TU311
摘要:
依据建筑抗震设计规范反应谱曲线,同时考虑SSI效应对隔震结构及非隔震结构水平地震作用的影响,建立了软弱场地上考虑SSI效应的隔震结构水平向减震系数的简化算法。在此基础上给出了软弱场地上考虑SSI效应的隔震结构计算流程,深入研究了考虑SSI效应的隔震结构水平向减震系数在不同影响参数下的变化规律。通过参数研究发现:软弱场地条件下多层隔震结构考虑SSI效应的的水平向减震系数随波速参数、周期比和高宽比的增大而增大,相应的隔震效果越差;而软弱场地条件下高层隔震结构在达到一定的周期比时,考虑SSI效应的水平向减震系数随波速参数的增大而增大,但增幅较小,考虑SSI效应的水平向减震系数随高宽比的增大而减小。研究表明:软弱场地条件下隔震结构经过合理的设计,水平向减震系数可达到预期值,隔震结构能取得较理想的隔震效果。
Abstract:
According to the response spectrum curve of code for seismic design of buildings, the influence of the SSI effect on seismic dynamic load of isolated structure and non-isolated structure is considered, simplified calculation method of seismic reduction factor for multiple-story on soft sites with SSI effect is established, calculation process for the design of isolated structure on soft sites with SSI effect is given,the law of variability of seismic reduction factor with SSI effect is analyzed when influence factors are changed. It is demonstrated through the factors research that seismic reduction factor of multiple-story isolated structure with SSI effect becomes larger with wave velocity parameter, ratio of period and depth-width ratio larger, and its isolation efficiency becomes lower, when multiple-story isolated structure lies on soft sites. However, seismic reduction factor of high-rise isolated structure with SSI effect becomes slightly larger with wave velocity parametre larger, and it becomes lower with depth-width ratio larger, when high-rise isolated structure meets certain requirement for ratio of period on soft sites. This paper’s findings indicate that isolated structure has a good vibration isolation effect, and its seismic reduction factor comes up to expected values,when the isolated structure designs reasonably on soft sites.

参考文献/References:

[1] 日本建筑学会著.隔震结构设计[M].刘文光,译. 北京: 地震出版社, 2006: 110-140. Architectural Institute of Japan. Recommendation for the Design of Base Isolated Buildings[M]. Translated by Liu Wenguan. Beijing: Earthquake Press, 2006, 110-140. (in Chinese)
[2] SPYRAKOS C C, KOUTROMANOS I A, MANIATAKIS C A. Seismic response of base-isolated buildings including soil-structure interaction[J]. Soil Dynamics and Earthquake Engineering, 2009, 29(4): 658-668.
[3] ZHUANG Haiyang, YU Xu, ZHU Chao, et al. Shaking table tests for the seismic response of a base-isolated structure with the SSI effect[J]. Soil Dynamics and Earthquake Engineering, 2014, 67(6): 208-218.
[4] 于旭,庄海洋,朱超. 软夹层地基上多层隔震结构模型振动台试验研究[J].振动与冲击,2015, 34(24):109-115. YU Xu, ZHUANG Haiyang, ZHU Chao. Shaking table model test for multi-story isolated structure on softer interlayer foundation[J]. Journal of Vibration and Shock, 2015, 34(24): 109-115.
[5] 李昌平, 刘伟庆, 王曙光, 等. 软土地基上高层隔震结构模型振动台试验研究[J].建筑结构学报, 2013, 34(7): 72-78. LI Changping, LIU Weiqing, WANG Shuguang, et al. Shaking table test on high-rise isolated structure on soft soil foundation[J]. Journal of Building Structures. 2013, 34(7): 72-78. (in Chinese)
[6] 符蓉, 叶昆, 李绍进, 等. 基于结构设计的LRB基础隔震结构水平向减震系数研究[J].工程力学, 2012, 29(增刊I):130-135. FU Rong, YE Kun, LI Shaojin, et al. Investigation into the seismic isolation coefficient of LRB base-isolated structures for structural design[J]. Engineering Mechanics, 2012, 29(SI): 130-135. (in Chinese)
[7] 郭佩佩. 隔震结构水平向减震系数取值方法与支墩设计技术研究[D]. 济南: 山东大学硕士学位论文,2013. GUO Peipei. Research on calculation method of horizontal seismic reduction factor and design technology of pier in isolated structure[D]. Jinan: Shandong University, 2013. (in Chinese)
[8] 翁大根,刘帅, 李霄龙, 等. 软土地基结构隔震方案及其工程应用[J].建筑结构学报, 2015, 36(2): 41-50. WENG Dagen, LIU Shuai, LI Xiaolong, et al. Research and application of structural seismic isolation in soft ground[J]. Journal of Building Structures, 2015, 36(2): 41-50.
[9] 王德才, 徐勤, 叶献国, 等. 地震动对隔震结构减震系数的影响研究[J].工业建筑, 2015, 45(11): 19-24. WANG Decai, XU qin, YE Xianguo, et al. The influence of ground motion records on the seismic reduction coefficients of isolated structure[J]. Industrial Construction, 2015, 45(11): 19-24.
[10] 于旭, 庄海洋, 朱超. 考虑SSI效应的隔震结构体系简化分析方法[J].地震工程与工程震动. 2014,34(6): 192-199. YU Xu, ZHUANG Haiyang, ZHU Chao. Simplified calculate method for isolated structure system with the dynamic soil-structure interaction[J]. Earthquake Engineering and Engineering Vibration. 2014, 34(6): 192-199. (in Chinese)
[11] 于旭. 考虑土与结构相互作用的隔震结构体系性能研究[D]. 南京: 南京工业大学, 2009. YU Xu. Performance research on seismic isolated structure system considering soil-structure dynamic interaction[D]. Nanjing: Nanjing University of Technology, 2009. (in Chinese)
[12] 苏经宇, 曾德民, 田杰.隔震建筑概论[M]. 北京: 冶金工业出版社,2012:26-27. SU Jingyu, ZENG Demin, TIAN Jie. Introduction to Isolated Structure[M], Beijing: Press of Metallurgical Industry. 2012: 26-27. (in Chinese)
[13] 庄海洋, 于旭. 土-桩-隔震结构动力相互作用[M].北京:中国建筑工业出版社, 2016: 117-119. ZHUANG Haiyang, YU Xu. Dynamic Soil-pile-isolated Structure Interaction[M], Beijing: Press of Architectural Industry. 2016: 117-119. (in Chinese)
[14] 李昌平, 刘伟庆, 王曙光,等. 土-隔震结构相互作用体系动力特性参数的简化分析方法[J]. 工程力学, 2013, 30(7): 173-179. LI Changping, LIU Weiqing, WANG Shuguang, et al. Simplified method for calculation dynamic characteristics of soil-isolated structure system[J]. Engineering Mechanics, 2013, 30(7): 173-179. (in Chinese)
[15] GB 50011—2010, 建筑抗震设计规范[S].北京: 中国建筑工业出版社, 2010. GB 50011—2010, Code for Seismic Design of Buildings[S].Beijing: China Architecture& Building Press, 2010.(in Chinese)

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备注/Memo

备注/Memo:
收稿日期:2016-08-18;改回日期:2016-09-13。
基金项目:国家自然科学基金面上基金资助项目(51778282);南京工程学院校级科研基金项目(CKJA201505,JCYJ201618)
作者简介:于旭(1977-),男,博士,副教授,主要从事土与结构动力相互作用研究.E-mail:yuxurichard@sina.com
通讯作者:庄海洋(1978-),博士,教授,主要从事土与结构动力相互作用研究.E-mail:zhuang7802@163.com
更新日期/Last Update: 1900-01-01