Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Yasuda, Masahiro; Uryu, Mitsuru; Yamazaki, Toshihiko; Kirita, Fumio; Fujihara, Satoru*; Kawaji, Kaoru*
no journal, ,
no abstracts in English
Kirita, Fumio; Uryu, Mitsuru; Yamazaki, Toshihiko; Yasuda, Masahiro; Fujihara, Satoru*; Kawaji, Kaoru*
no journal, ,
no abstracts in English
Igarashi, Sayaka*; Sakamoto, Shigehiro*; Nishida, Akemi; Muramatsu, Ken; Takada, Tsuyoshi*
no journal, ,
In the preceding study, the ground-motion time histories, which are consistent with seismic hazard and incorporate the uncertainties of seismic-source characteristics, were generated for advanced seismic PRA utilizing structural response analyses. However, the relationships between seismic-source characteristics, seismic intensities and structural responses have not been clarified. In this study, total 2,736 ground motions are generated for one seismic source of "Southern-Kanto earthquakes" where the magnitude is 7.1 and the fault distances are 45-65 km. These ground motions also incorporate the uncertainties of seismic-source characteristics. Moreover, the structural response analyses of simple RC structure are conducted with these time histories. The influence of seismic-source characteristics on the seismic intensities and structural response are examined.
Nishida, Akemi; Sakamoto, Shigehiro*; Igarashi, Sayaka*; Muramatsu, Ken; Takada, Tsuyoshi*
no journal, ,
In the preceding study, the ground-motion time histories, which are consistent with seismic hazard and incorporate the uncertainties of seismic-source characteristics, were generated for advanced seismic PRA utilizing structural response analyses. In this paper, results of structural analyses with generated ground motions, 250 ground motions with peak accelerations of 5-10 m/s
, are presented. In the response spectra of ground motions on the rock surface, correlation gap range was found around the period of 0.1-0.2 s, which could be found in the input ground motions and in the structural responses. While ductility factors of the structural response were high, their influences on the correlations were not large.
Sakamoto, Shigehiro*; Igarashi, Sayaka*; Nishida, Akemi; Muramatsu, Ken; Takada, Tsuyoshi*
no journal, ,
This paper is intended to clarify the difference of building function loss possibilities which depend on the realization way of the variation and/or inter-period correlation in the response spectra of ground motions. The authors prepared some cases of GMs sets shown in following. The response analyses of a simple RC structure were conducted for each cases and the damage frequencies of equipment system were compared. case(n): simulated GMs which have no variation in response spectra. case(p): simulated GMs which have the same variation in response spectra with case(r), while the inter-period correlation coefficient is 1.0.. case(c): simulated GMs which the same variation with case(r) and the modeled inter-period correlation of case(r) in the response spectra. where, case(r) is the set of original ground motions.
Choi, B.; Itoi, Tatsuya*; Takada, Tsuyoshi*
no journal, ,
no abstracts in English