土-结构相互作用的岩溶区框架结构抗震研究
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摘要
岩溶区地质条件复杂,采用土-结构动力相互作用的方法,探讨一些特殊的地质条件对上部结构的地震反应影响,对岩溶区的建筑抗震研究具有重要意义。研究表明:岩溶地基中土洞的发育会使土层对地震波的放大效应增强,导致上部结构位移和剪力增加;与垂向分布土洞的工况相比,当土洞水平分布时,岩溶地基上部框架结构地震反应更强,框架结构位移和剪力较大。
The geological conditions of karst there is complex. In this paper,with the method of pile- soil- structure dynamil intevaction to discuss some special geological on setsmice response of the upper structure hos the important meanning for the research of the luve area building seismic This study shows that: the soil caves can enhance the amplification for the soil of karstic area and so that makes internal force and displacement of structure to be larger; Compared with the condition of soil cave vertical distribution,the seismic responses of structure could be more stronger in the condition of soil cave horizontal distribution,the shear and the displacement of structure is larger
The geological conditions of karst there is complex. In this paper,with the method of pile- soil- structure dynamil intevaction to discuss some special geological on setsmice response of the upper structure hos the important meanning for the research of the luve area building seismic This study shows that: the soil caves can enhance the amplification for the soil of karstic area and so that makes internal force and displacement of structure to be larger; Compared with the condition of soil cave vertical distribution,the seismic responses of structure could be more stronger in the condition of soil cave horizontal distribution,the shear and the displacement of structure is larger
引文
[1]杨仕升,何声,谢开仲,等.我国岩溶区建筑震害分析与抗震研究进展[J].地震研究,2013,36(3):401-406.Yang Shisheng,He Sheng,Xie Kaizhong.Seismic damage analysis and seismic resistance research progress of architectural structures in karst area of China[J].Journal Of Seismological Research,2013,36(3):401-406.
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[2]光耀华.岩溶区工程地质研究的若干新进展概述[J].中国岩溶,1998,17(4):378-383.Guang Yaohua.An introduction to the progress of the geologic engineering researches in karst regions[J].Carsologica Sinica,1998,17(4):378-383.
[3]周含川,李正良.高层建筑与岩溶洞穴地基基础共同作用分析[J].重庆大学学报,2006,29(3):138-142.Zhou Hanchuan,Li Zhengliang.Analysis on superstruct-foundation-soil interaction on karst region[J].Joumal Of Chongqing University(Natural Science Edition),2006,29(3):138-142.
[4]刘晶波,王振宇等.波动问题中三维时域粘弹性人工边界[J].工程力学,2005,22(6):46-51.Liu Jingbo,Wang Zhenyu,Du Xiuli.Three dimensional viscous-spring artificial boundaries in time domain for wave motion problems[J].Engineering Mechanics,2005,22(6):46-51(in Chinese)
[5]刘晶波,王振宇,张克峰等.考虑土-结构相互作用大型动力机器基础三维有限元分析[J].工程力学,2002,19(3):34-38.Liu Jingbo,Wang Zhenyu,Zhang Kefeng Pei Yuxiao.3D finite element analysis of large dynamic machine foundation considering soil-structure interaction[J].Engineering Mechanics,2002,19(3):34-38.(in Chinese)
[6]Kenzo Toki.Generalized method for non-linear seismic response analtsis of three dimensional soil-structure interaction system[J].Earthequake Engineering&Structure Dynamics,1987,15:945-961.
[7]陆怀民.切土部件与土壤相互作用的粘弹性塑性有限元[J].土木工程学报,2002,35(6):79-81.Lu Huaimin.Finite element analtsis for the interaction of soil cutting part and soil[J].China Civil Engineering Journal,2002,35(6):79-81.
[8]陈清军.土-桩-结构相互作用体系随机地震反应分析[J].力学季刊,2004,25(3):417-423.Chen Qingjun,Zhu Qingqun.Random seismic response analysis of soil pile structure interaction system[J].Chinese Quarterly of Mechanics,2005,25(2):417-423.
[9]刘立平.水平地震作用下桩-土-上部结构弹塑性动力相互作用分析[D].重庆:重庆大学博士论文,2004.Liu Liping.Study on pile-soil-superstructure elasto-plastic dynamic interaction under the horizontal earthquake action[D].Chongqing:Ph.D.Dissertation of Chongqing University,2004.
[10]白建方.场地地震反应分析导论[M].北京:中国铁道出版社,2010.Bai Jianfang.Introduction to analysis of site earthquake[M].Beijing:China Railway Publishing House,2010.
[11]工程地质手册(第四版)[S].北京:中国建筑工业出版社,2007,181.Engineering Geology Manual(4ed)[S].Beijing:China Architecture&Building Press,2007,181.
[12]GB50011-2010,建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB50011-2010,Code for seismic design of buildings[S].Beijing:China Architecture Industry Press,2010.(in Chinese)
[13]龙安明.广西特殊地震研究[J].华南地震,1992,12(4):22-31.Long Anming.On The Special Earthquakes in Guangxi[J].South China Journal of Seismology,1992,12(4):22-31.
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