Trial Design of RCS Structures

US - Japan Composite and Hybrid Systems Research Program

Title of Project	Trial Design of RCS Structures
Principle Investigator	Eiji Ishii

Institution	Taisei Corp.
Mailing Address	3-25-1 Hyakunincho, Shinjuku-ku, Tokyo, Japan
Email	ishii@kiku.taisei.co.jp

Research Associates	M. Mizuta, M. Fujimura
Research Sponsor	Building Research Institute, Building Contractors Society, Japan Structural Consultants Association, Building Center of Japan,Kozai Club

Objectives

Investigate the designed system of RCS structure
Investigate the inelastic dynamic analyses on RSC structure

Technical Approach

for the plan: 32-column type (theme structure)
for the height: 12 stories
at this time (1997) we ignored the shear deformation of the panel

Summary of Research Results to Date

The trial design is based on the current seismic design code in Japan. The sizes of the columns are 100 cm by 100 cm for stories one through nine, and 80 cm by 80 cm for stories ten through twelve. The estimated ultimate shear strength is 1.37 times of that required in the x-direction and 1.48 times of that required in the y-direction.

Four motions are used in the inelastic dynamic analyses. Each of the motions is scaled to 25 kine and 50 kine. The maximum story drifts are 1/303, 1/285 under 25 kine input, and 1/131, 1/148 under 50 kine input. The ductility ratio is just above 2.0 and under 25 kine input.

References

Ishii, E., and M. Mizuta. Trial Design of RCS RCS Structures. Proceedings of the Third Joint Technical Coordinating Committee Meeting, Hong Kong, December 12-14, 1996.

US - Japan Composite and Hybrid Systems Research Program