Œf�ÚŽGŽ��i˜a�j�F
“ú–{’n�k�HŠwƒVƒ“ƒ|ƒWƒEƒ€�u‰‰�W
Vol�F
5Šª
”N�F
1978”N
•Å�F
1129-1136•Å
’˜ŽÒ�i˜a�j�F
-
ƒ^ƒCƒgƒ‹�i˜a�j�F
-
|
�´˜^�i˜a�j�F
-
|
|
ƒL�[ƒ��[ƒh�i˜a�j�F
-
|
Œf�ÚŽGŽ��i‰p�j�F
PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
’˜ŽÒ�i‰p�j�F
Koichiro ASANO, Sanshiro SUZUKI
ƒ^ƒCƒgƒ‹�i‰p�j�F
EFFECT OF TIME-DEPENDENT SPECTRA OF RANDOM EARTHQUAKE EXCITATIONS ON HYSTERETIC STRUCTURAL RESPONSE
|
�´˜^�i‰p�j�F
A new analytical technique for the assessment of random response of the bi-linear hysteretic system with single-degree-of freedom is presented to investigate the effect of time-dependent spectra of earthquake excitation on nonlinear hysteretic response of the building structure. Earthquake excitations considered herein are random processes whose non-stationarity and nonwhite spectral characteristics are prescribed by an energy envelope function and time-dependent predominant angular frequency respectively. Numerical computations are carried out concerning to r.m.s. values of non-stationary relative displacement response of the structural system with bi-linear hysteretic characteristics by considering or neglecting time-dependence of power spectra of earthquake excitations. It is concluded, from the results, that time-dependence of power spectra of earthquake excitations can't be ingnored from the earthquake damages of the structural system point of view.
|
|
ƒL�[ƒ��[ƒh�i‰p�j�F
-
|
‹LŽ–‹æ•ª�F
-
‹æ•ª
�@�@�@ˆÏˆõ‰ï˜_•¶�W