Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《地震学报(英文版)》 2010-01
Add to Favorite Get Latest Update

Torsional phenomena in 2008 great Wenchuan earthquake

Fan Yang 1 Qifeng Luo 2, and Wei Che 3 1 Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China 2 Shanghai Institute of Disaster Prevention and Relief, Tongji University, Shanghai 200092, China 3 School of Engineering and Technology, China University of Geosciences, Beijing 100083, China  
It is well known that there are some torsional damages in earthquakes. In Taibai park, Jiangyou city, Sichuan province, most of the stone statues, which were placed upon the banisters of one zigzag bridge, exhibited different torsional phenomena in 2008 Wenchuan earthquake. This paper introduces the torsional phenomena of all the statues on the zigzag bridge firstly. Then one eccentricity model is established and the equivalent rotational accelerations are calculated in order to analyze the causes of the torsional damage. In addition, the torsional components are synthesized by using translation accelerations recorded at Jiangyou station in the Wenchuan earthquake. The results show that the equivalent rotational acceleration is larger than the synthesized rotational components, which suggests that the torsional phenomena of the statues on the zigzag bridge might mainly come from its eccentricity. The comparison between the estimated torsional component at Jiangyou and that presented by Trifunac shows that they are in the same order. The research im-plies that the torsional phenomena in earthquakes are very complicated, and not only caused by torsional motions.
【Fund】: supported by the National Natural Science Foundation of China (No. 50578125)
【CateGory Index】: P315.9
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 1 Hits
1 HE Chao1,LUO Qi-feng2,HONG Zhong3(1.Research Institution of Structural Engineering and Disaster Reduction,Tongji University,Shanghai 200092,China)(2.Shanghai Institution of Disaster Prevention and Relief,Tongji University,Shanghai 20092,China)(3.National Nuclear Engineering Limited Company,Shanghai 20092,China);Brief Discussion on the Study of the Seismic Rotational Components[J];Journal of Seismological Research;2011-01
【Co-citations】
Chinese Journal Full-text Database 1 Hits
1 Wei Che 1 and Qifeng Luo 2, 1 School of Engineering & Technology, China University of Geosciences, Beijing 100083, China 2 Shanghai Institute of Disaster Prevention and Relief, Tongji University, Shanghai 200092, China;Time-frequency response spectrum of rotational ground motion and its application[J];地震学报(英文版);2010-01
【Co-references】
Chinese Journal Full-text Database 7 Hits
1 Wang Junjie (Institute of Engineering Mechanics, State Seismological Bureau)Hu Yuxian (Institute of Geophysics, State Seismological Bureau);A STUDY ON ROTATIONAL COMPONENTS OF SURFACE GROUND MOTION[J];Earthquake Engineering and Engineering Vibration;1991-02
2 Jin Xing Liao Zhenpeng(Institute of Engineering Mechanics, S.S.R.);ENGINEERING PREDICTION OF ROTATIONAL COMPONENTS ON GROUND SURFACE[J];Earthquake Engineering and Engineering Vibration;1991-04
3 LI Hong-nan, SUN Li-ye (Shenyang Architectural and Civil Engineering Institute, Shenyang 110015, China);Rotational components of earthquake ground motions derived from surface waves[J];Earthquake Engineering and Engineering Vibration;2001-01
4 Sun Shijun (Architectural and Planning Design Institute of Dalian Development Zone, Dalian, 116600) Chen Guoxing (Institute of Geotechnical Engineering, Nanjing Architectural and Civil Engineering Institute, Nanjing, 210009);SYNTHESIS METHOD FOR ESTIMATION OF ROTATION COMPONENTS OF GROUND MOTION[J];JOURNAL OF SEISMOLOGY;1998-01
5 Wei Che 1 and Qifeng Luo 2, 1 School of Engineering & Technology, China University of Geosciences, Beijing 100083, China 2 Shanghai Institute of Disaster Prevention and Relief, Tongji University, Shanghai 200092, China;Time-frequency response spectrum of rotational ground motion and its application[J];地震学报(英文版);2010-01
6 SUN Shi jun 1 , CHEN Guo xing 2 ( 1 Architectural and Planning Design Institute of Dalian Development Zone, Dalian 116600,China;2.Institute of Geotechnical Engineering,Nanjing Architectural and Civil Engineering In;Standard Response Spectrum of Ground Motion Rotational Components[J];JOURNAL OF NANJING ARCHITECTURAL AND CIVIL ENGINEERING INSTITUTE;1999-04
7 CHEN Guo xing 1 , SUN Shi jun 2 , ZAI Jing min 1 ( 1 Institute of Geotechnical Engineering,Nanjing Architectural and Civil Engineering Institute, Nanjing 210009,China;2 Architectural and Planning Design Institute of;A General Response Spectrum Analytical Method of Structure for Multi Dimension Coherence Ground Motion Inputs[J];JOURNAL OF NANJING ARCHITECTURAL AND CIVIL ENGINEERING INSTITUTE;1999-04
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved