ELONGATION OF THE FUNDAMENTAL PERIODS OF REINFORCED CONCRETE FRAME BUILDINGS DURING NONLINEAR SEISMIC RESPONSE
(0) This paper presents results from a study on the relationship between the increase (i.e., the elongation) of the fundamental periods of reinforced concrete frame buildings designed according to the National Building Code of Canada and the intensity of seismic ground motions. For the purpose of this study, three buildings were designed including a 4-storey, a 10-storey, and a 16-storey building, that can be considered typical of low,intermediate, and high rise buildings respectively. The buildings were designed for the city of Vancouver,Canada, which is in a high seismic region. A set of 40 recorded accelerograms representative of seismic motions in the Vancouver region were selected for use in the seismic analysis. Each building was subjected to a series of seismic excitations producing responses that ranged from elastic to significant inelastic responses. The free vibrations of the buildings, after the end of each excitation motion, were analyzed to determine the postexcitation fundamental (i.e., the first mode) periods. The computed periods were statistically analyzed to determine the relationship between the elongation of the fundamental period and the intensity level of the seismic excitation.
reinforced concrete building period elongation seismic analysis.
L. Lin N. Naumoski S. Foo M. Saatcioglu
Dept. of Civil Engineering, University of Ottawa, Ottawa, Canada Risk specialist, Public Works and Government Services Canada, Gatineau, Quebec, Canada
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）