Department of Civil and Environmental Engineering Stanford University

STRENGTH AND DUCTILITY CONSIDERATIONS IN SEISMIC DESIGN

by

John David Osteraas

and

Helmut Krawinkler

Report No. 90

June 1990

The John A. Blume Earthquake Engineering Center was established to promote research and education in earthquake engineering. Through its activities our understanding of earthquakes and their effects on mankind’s facilities and structures is improving. The Center conducts research, provides instruction, publishes reports and articles, conducts seminar and conferences, and provides financial support for students. The Center is named for Dr. John A. Blume, a well-known consulting engineer and Stanford alumnus. Address: The John A. Blume Earthquake Engineering Center Department of Civil and Environmental Engineering Stanford University Stanford CA 94305-4020 (650) 723-4150 (650) 725-9755 (fax) earthquake @ce. stanford.edu http://blume.stanford.edu

©1990 The John A. Blume Earthquake Engineering Center

Strength and Ductilil.y Considerations in Seismic Design

vii

 

 

     

ACKNOWLEDGMENTS    

This report was originally published as the Ph.D. dissertation of the first author.

The authors wish to acknowledge the following: Luis Esteva supplied building

code information, subsurface investigation reports, and, most importantly,

facilitated our access to the Pino Suarez complex. Damage survey and technical

data on the office building at 77 Amsterdam Street were provided by Enrique

Martinez-Romero. The comments and observations of Oscar de Buen's office

regarding Pino Suarez were most helpful. Eduardo Miranda's first hand accounts of

building damage and assistance with building identification is greatly

appreciated. Hiroyuki Fuyama translated portions of the report prepared by the

Japanese reconnaissance teams, which made this excellent reference accessible.

 The study upon which this dissertation is based was supported, in part, by the

National Science Foundation through the Grant ECE-8611054. The generous

support provided by the Northern California Chapter of the Achievement Rewards

for Col1age Scientists (ARCS) Foundation is greatly appreciated.

Strength and Ductilily Considerations in Seismic Design

viii