Bi-normalized response spectra and seismic intensity in Bucharest for 1986 and 1990 Vrancea seismic events

作     者：Florin Pavel Radu Vacareanu Cristian Neagu Andrei Pricopie 

作者机构：Department of Reinforced Concrete StructuresTechnical University of Civil Engineering BucharestRomania Department of Strength of MaterialsBridges and TunnelsTechnical University of Civil Engineering BucharestRomania 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2014年第13卷第1期

页      面：125-135页

核心收录：

学科分类：081405[工学-防灾减灾工程及防护工程] 070801[理学-固体地球物理学] 07[理学] 08[工学] 0708[理学-地球物理学] 0814[工学-土木工程] 

基　　金：provided by the Romanian National Authority for Scientific Research (ANCS) under Grant Number 72/2012 

主　　题：response spectra bi-normalized response spectra dynamic amplifi cation factor control period damage potential parameters 

摘      要：The Vrancea subcrustal earthquakes of August 30,1986 and May 30,1990 are the two most recent seismic events that have occurred in Romania with moment magnitudes M W ≥ *** spectral analysis of the strong ground motions recorded in Bucharest reveals that despite small differences in magnitude between the 1986 and 1990 earthquakes,their frequency contents are very different,sometimes even *** main focus of this study is to conduct a comparative analysis of the response spectra in terms of the bi-normalized response spectra(BNRS) proposed by Xu and Xie(2004 and 2007) for strong ground motions recorded in Bucharest during these two seismic *** mean absolute acceleration and relative velocity response spectra for the two earthquakes are discussed and ***,the mean bi-normalized absolute acceleration and normalized relative velocity response spectra with respect to the control period T C are computed for the ground motions recorded in Bucharest in 1986 and *** predominant period T P is also used in this study for the normalization of the spectral period ***,the methodology proposed by Martinez-Perreira and Bommer(1998) is applied in order to estimate the seismic intensity of the two *** results are discussed and several conclusions regarding the possibility of using the bi-normalized response spectra(BNRS) are given.