Journal of Social Safety Science
Online ISSN : 2187-9842
Print ISSN : 1345-2088
ISSN-L : 1345-2088
Basic Study on Seismic Zoning Factors
Tadashi SEIKENaotsune TAGA
Author information
JOURNAL FREE ACCESS

1999 Volume 1 Pages 19-24

Details
Abstract

We selected 5sites,that is Niigata. Tokyo. Nagoya. Osaka and I Fukuoka. as study areas. Then we investigated the regional differences of the seismic load by calculating on the condition which the probability of damage corresponding to the damage of the low-middle RC building is equal in each site. Conclusions are as follows: (1) Recommendations for Loads on Huildingsbv A.I.J. adopt 100years return expected valueas the basic valueofthe seismic load. When the zoning factor of th seismic load is made only 1. the return period is insufficientfor 100years and necessary for about 300years.(2) As for the present design by 2 steps. thouuh recommendations by A.l.J.are effective against the regional dietbrences toward the design of the first step. another zoning factor is necessary for the design of the second step.

Content from these authors
© 1999 Institute of Social Safety Science
Previous article Next article
feedback
Top