强震作用下地铁车站结构损伤破坏的高效分析方法
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摘要
地下结构的关键构件(如柱子等)在地震作用下可能发生破坏,进而影响结构体系的整体稳定性。在借鉴传统反应位移法的基础上,提出了一种新的位移时程反应分析方法,采用该方法对日本神户大开地铁车站进行地震响应分析。结果表明:位移时程反应分析方法能够考虑土-结构相互作用、材料非线性、几何非线性、水平地震与竖向地震的耦合作用及地震动传播的时空效应,适用于地下结构地震反应分析,利用该方法得出的地铁车站结构变形及损伤破坏与实际震害观察具有较好的一致性,并指出大开地铁车站结构的整体垮塌是由于柱子剪坏和高轴压联合作用所致。
Under the action of earthquakes, some key components of underground structures may be damaged, and the stability of the whole structure may deteriorate. Based on the traditional response displacement method, a new response analysis method of displacement time-history is proposed, and the characteristics and solution procedure of the method are introduced. Seismic response analysis of the Daikai subway station in Kobe, Japan, was conducted using the proposed method, which takes several aspects, e.g., the soil-structure interaction, material nonlinearity, geometry nonlinearity, coupling effect of horizontal shock and vertical shock, and the time-space effect of ground motion propagation, into consideration simultaneously. As the deformation and damage failure of the metro station obtained by the proposed method agreed well with actual results, the method is suitable for seismic analysis of underground structures.
Under the action of earthquakes, some key components of underground structures may be damaged, and the stability of the whole structure may deteriorate. Based on the traditional response displacement method, a new response analysis method of displacement time-history is proposed, and the characteristics and solution procedure of the method are introduced. Seismic response analysis of the Daikai subway station in Kobe, Japan, was conducted using the proposed method, which takes several aspects, e.g., the soil-structure interaction, material nonlinearity, geometry nonlinearity, coupling effect of horizontal shock and vertical shock, and the time-space effect of ground motion propagation, into consideration simultaneously. As the deformation and damage failure of the metro station obtained by the proposed method agreed well with actual results, the method is suitable for seismic analysis of underground structures.
引文
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[16] 禚一,李忠献.钢筋混凝土纤维梁柱单元实用模拟平台[J].工程力学,2011,22(4):18-25.ZHUO Yi,LI Zhongxian.A Practical Simulation Platform of Reinforced Concrete Fiber Beam-Column Element[J].Engineering Mechanics,2011,22(4):18-25.
[17] IZZUDDIN B A,FANG Qin.Rate-sensitive Analysis of Framed Structures Part I:Model Formulation and Verification[J].Structural Engineering & Mechanics,1997,5(3):221-237.
[18] FANG Qin,IZZUDDIN B A.Rate-sensitive Analysis of Framed Structures Part II:Implementation and Application to Steel and R/C Frames[J].Structural Engineering & Mechanics,1997,5(3):239-256.
[19] 方秦,柳锦春,张亚栋,等.爆炸荷载作用下钢筋混凝土梁破坏形态有限元分析[J].工程力学,2001,18(2):1-8.FANG Qin,LIU Jinchun,ZHANG Yadong,et al.Finite Element Analysis of Failure Modes of Blast-loaded RC Beams[J].Engineering Mechanics,2001,18(2):1-8.
[2] AN X H,SHAWKY A A,MAEKAWA K.The Collapse Me-chanism of a Subway Station during the Great Hanshin Earthquake[J].Cement and Concrete Composites,1997,19(3):241-257.
[3] YORSSEF M A,HASHASH,et al.Seismic Design and Analysis of Underground Structures[J].Tunneling and Underground Space Technology,2001,16(4):247-293.
[4] 还毅,方秦,柳锦春,等.提高地铁车站结构抗震能力的理论及数值分析[J].振动与冲击,2011,30(3):252-257.HUAN Yi,FANG Qin,LIU Jinchun,et al.Theoretical and Numerical Investigations on Enhancement of Aseismic Capability of Metro Stations[J].Journal of Vibration and Shock,2011,30(3):252-257.
[5] 还毅,方秦,陈力,等.强震作用下地铁车站结构损伤破坏的三维非线性动力分析[J].北京工业大学学报,2011,37(6):852-861.HUAN Yi,FANG Qin,CHEN Li,et al.3D Nonlinear Damage Analysis of Metro-station Structures under Strong Seismic Loading[J].Journal of Beijing University of Technology,2011,37(6):852-861.
[6] 杜修力,马超,路德春,等.大开地铁车站地震破坏模拟与机理分析[J].土木工程学报,2017,50(1):53-62.DU Xiuli,MA Chao,LU Dechun,et al.Collapse Simulation and Failure Mechanism Analysis of the Daikai Subway Station under Seismic Loads[J].China Civil Engineering Journal,2017,50(1):53-62.
[7] 李绿宇,国巍,蒋丽忠,等.沈阳地铁车辆段上盖双子楼隔震性能的振动台试验研究[J].振动与冲击,2017,36(6):56-62.LI Lüyu,GUO Wei,JIANG Lizhong,et al.Shaking Table Tests on the Isolation Performance of Two Buildings Built on the Top Head of Shenyang Metro Depot[J].Journal of Vibration and Shock,2017,36(6):56-62.
[8] 刘晶波,刘祥庆,杜修力.地下结构抗震理论分析与试验研究的发展展望[J].地震工程与工程振动,2007,27(6):38-46.LIU Jingbo,LIU Xiangqing,DU Xiuli.Prospects for the Development in Theoretical Analysis and Experimental Study of Seismic Response of Underground Structures[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(6):38-46.
[9] 袁勇,禹海涛,陈之毅.软土浅埋框架结构抗震计算方法评价[J].振动与冲击,2009,28(8):50-56.YUAN Yong,YU Haitao,CHEN Zhiyi.Evaluation of Seismic Calculation Methods for Shallow-buried Frame Structures in Soft Soil[J].Journal of Vibration and Shock,2009,28(8):50-56.
[10] 还毅.强震作用下地铁车站结构损伤破坏的精细化数值仿真及隔震技术研究[D].南京:解放军理工大学,2011.HUAN Yi.Sophisticated Numerical Study on the Dynamic Response of Metro Station Structure under the Action of Intensive Seismic Shock and Shock Isolation Technique[D].Nanjing:PLA University of Science and Technology,2011.
[11] 谷拴成,高宗祺.土层隧道动力分析[J].西安科技学院学报,2002,22(4):404-410.GU Shuancheng,GAO Zongqi.Seismic Analysis of Tunnels in Soil[J].Journal of Xi'an University of Science and Technology,2002,22(4):404-410.
[12] 蒋通,宋晓星.有接头埋管在地震行波作用下的弹塑性分析[J].岩土工程学报,2007,29(12):1837-1843.JIANG Tong,SONG Xiaoxing.Analysis of Buried Pipes with Joints under Action of Seismic Motion[J].Chinese Journal of Geotechnical Engineering,2007,29(12):1837-1843.
[13] 李彬.地铁地下结构抗震理论分析与应用研究[D].北京:清华大学,2005.LI Bin.Theoretical Analysis and Application Research of Subway Underground Structures against Earthquake[D].Beijing:Tsinghua University,2005.
[14] 陆新征,叶列平,缪志伟.建筑抗震弹塑性分析[M].北京:中国建筑工业出版社,2009.LU Xinzheng,YE Lieping,MIU Zhiwei.Elastic-plastic Analysis of Buildings against Earthquake[M].Beijing:China Architecture & Building Press,2009.
[15] 聂利英,李建中,范立础.弹塑性纤维梁柱单元及其单元参数分析[J].工程力学,2004,21(3):15-20.NIE Liying,LI Jianzhong,FAN Lichu.Elastic-plastic Fiber Beam-Column Element and Its Parametric Analysis[J].Engineering Mechanics,2004,21(3):15-20.
[16] 禚一,李忠献.钢筋混凝土纤维梁柱单元实用模拟平台[J].工程力学,2011,22(4):18-25.ZHUO Yi,LI Zhongxian.A Practical Simulation Platform of Reinforced Concrete Fiber Beam-Column Element[J].Engineering Mechanics,2011,22(4):18-25.
[17] IZZUDDIN B A,FANG Qin.Rate-sensitive Analysis of Framed Structures Part I:Model Formulation and Verification[J].Structural Engineering & Mechanics,1997,5(3):221-237.
[18] FANG Qin,IZZUDDIN B A.Rate-sensitive Analysis of Framed Structures Part II:Implementation and Application to Steel and R/C Frames[J].Structural Engineering & Mechanics,1997,5(3):239-256.
[19] 方秦,柳锦春,张亚栋,等.爆炸荷载作用下钢筋混凝土梁破坏形态有限元分析[J].工程力学,2001,18(2):1-8.FANG Qin,LIU Jinchun,ZHANG Yadong,et al.Finite Element Analysis of Failure Modes of Blast-loaded RC Beams[J].Engineering Mechanics,2001,18(2):1-8.