ESTIMATION OF INPUT SEISMIC ENERGY BY MEANS OF A NEW DEFINITION OF STRONG MOTION DURATION
This study presents a new method to estimate the earthquake input energy for medium to long period structures. The method is based on a new definition of the strong motion duration, combining the well known bracketed and significant duration definitions. The proposed duration presents high correlation with the duration of intense energy release. Two normalized parameters are introduced permitting a good approximation of the input energy by taking into account an effective value of the ground velocity and an equivalent number of excitation cycles depending on the frequency content of the ground velocity time history. The proposed parameters present a large correlation coefficient and the resulting error is minimal in comparison with existing methods that estimate the earthquake input energy.
seismic input energy strong-motion duration cycles of seismic loading
I.M. Taflampas Ch.A. Maniatakis C.C. Spyrakos
Civil Engineer, Dept. of Civil Engineering, Laboratory for Earthquake Engineering National Technical Civil Engineer, PhD Candidate, Dept. of Civil Engineering, Laboratory for Earthquake Engineering Nat Professor, Dept. of Civil Engineering, Laboratory for Earthquake Engineering National Technical Univ
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）