時刻歴免震データベースに基づく既存免震建物の構造特性と長周期地震動に対する影響評価

森田 高市; 井上 波彦

doi:10.3130/aijt.22.901

AIJ Journal of Technology and Design

Online ISSN : 1881-8188
Print ISSN : 1341-9463
ISSN-L : 1341-9463

Structures

STRUCTURAL CHARACTERISTICS OF EXISTING SEISMICALLY ISOLATED BUILDINGS ANALYSED BY TIME HISTORY BASED ON DATABASE AND ESTIMATION TO LONG PERIOD GROUND MOTIONS

Koichi MORITA, Namihiko INOUE

Author information

Keywords: Seismically isolated building, Long period ground motions, Structural characteristics, Base shear coefficient, Clearance

JOURNAL FREE ACCESS

2016 Volume 22 Issue 52 Pages 901-904

DOI https://doi.org/10.3130/aijt.22.901

Details

Abstract

Structural characteristics of super structures and seismic isolation devices were shown by the analysis of database of 3202 seismically isolated buildings.
In the recent buildings, natural period of seismically isolated buildings becomes longer, and base shear coefficient becomes smaller.
By the simple estimation to long period ground motions to isolated buildings, 15% buildings should be examined by time history analysis.