Influence on Vertical Response Spectra of Near-fault Long-period Pulse-type Earthquake Ground Motions
Jiang Hui1 Li Xinle＊2 Dou Huijuan2 Zhu Xi1
1.School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;2. School of Civil Engineering and Architecture, Dalian Nationalities University, Dalian 116600, China
[1] Bertero V V et al. Establishment of design earthquakes: Evaluation of present methods[J]．Proceedings Interntl. Symp. On Earthq. Struct. Engrg. St. Louis，Univ. of Missouri-Rolla, 1976, Vol.1: 551-580 [2] Niazi M, Bozorgnia Y M. Behavior of near-source peak vertical and horizontal ground motion over SMART-1 array[M]. Taiwan, BSSA, 1991,81: 715-732 [3] Campbell K W. Empirical near-source attenuation relationships for horizontal and vertical components of peak ground acceleration, peak ground velocity and pseudo-absolution response spectra[J]. Seismological Research Letter, 1997, 68:154-179 [4] 王国权．台湾集集地震近断层地面运动特征[D]．中国地震局地质研究所， 2001,106-108 Wang guoquan．Characteristics of near-fault earthquake motions for the Chi Chi earthquake [D]．Institute of Geology of China Seismological Bureau, 2001,106-108 (in Chinese) [5] 李新乐．近断层区桥梁结构的设计地震与抗震性能研究[D]．北京交通大学博士学位论文，2005：130-153 Li Xinle． Study on design earthquake and seismic performance of bridge in near-fault area [D]. Beijing: Beijing Jiaotong University,2005:130-153 (in Chinese) [6] UBC97, International Council of Building Officials(ICBO)．Uniform Building Code[M]. Whittier CA 1997 [7] GB50011-2010．建筑抗震设计规范[S]．北京：中国建筑工业出版社, 2010， 20-80 GB50011-2010．China Seismic Design Code [S]．China building industry press,beijing, 2010,20-80 (in Chinese) [8] JTG/T B 02-01-2008．公路桥梁抗震设计细则[S]．北京：人民交通出版社， 2008，17-18 JTG/T B 02-01-2008．Guidelines for seismic design of highway bridges [S]．People's Communications Publishing House, Beijing, 2008, 17-18 (in Chinese) [9] Niazi M. Behavior of peak values and spectral ordinates of near-source strong ground motion over the SMART 1 array[M]. Tenera, L.P. 1995 University Avenue Berkeley, CA 94704, 1990 [10] Ambraseys N N, Douglas J. Near-field horizontal and vertical earthquake ground motions[J]. Soil Dynamics and Earthquake Engineering, 2003, 23: 1-18 [11] 耿淑伟, 陶夏新,王国新．对抗震设计规范中地震作用规定的三点建议[C]．现 代地震工程进展, 2003, 919-925 Gen shuwei, Tao xiaxin, Wang guoxin. Three suggestions for earthquake action of seismic design code[C]. Modern advances in Earthquake Engineering, 2003, 919-925 (in Chinese) [12] Newmark N M, Hall W J. Seismic Design Criteria for Nuclear Reactor Facilities[C]. Proceedings of 4th World Conference on Earthquake Engineering, Sandiago de Chile, Vol.II, B5, 1969, 1-12 [13] Eurocode 8, Design Provision for Earthquake Resistance of Structure[S]. Brussels: European Committee for Standardization, 2003 [14] Chopra A K, Chintanapakdee C. Comparing response of SDOF systems to near-fault and far-fault earthquake motions in the context of spectral regions[J]. Earthquake Engineering and Structural Dynamics, 2001, 30: 769-1789
Abstract：Abstract：The long-period large-amplitude pulse is a remarkable characteristic of near-fault earthquake ground motions, which is also an important factor leading the structure to damage or collapse. The database and regression relation for near-fault long-period pulse-type earthquake records are established based on the achieved data. The influence of pulse period and structural natural vibration period on the acceleration response spectra ratio of vertical to horizontal components was discussed in-depth. The response spectra ratios for near-fault long-period pulse-type records are larger than that given by existing seismic design codes. The simplified relationship of response spectra ratio obtained using piecewise linearization method varies as a function of pulse period and structural natural vibration period. The statistical results and attenuation relationship of characteristic ratio for vertical response spectra curve are given in this paper，which controls the inflection point periods of vertical response spectra and is related to earthquake magnitude and fault distance.
2012, Vol. 31 
