文档介绍：Effects of Strength and
Stiffness Degradation on
Seismic Response
FEMA P440A
June 2009
FEMA
FEMA P440A/ June 2009
Effects of Strength and Stiffness Degradation on
Seismic Response
Prepared by
APPLIED TECHNOLOGY COUNCIL
201 Redwood Shores Parkway, Suite 240
Redwood City, California 94065
Prepared for
FEDERAL EMERGENCY MANAGEMENT AGENCY
Department of Homeland Security (DHS)
Michael Mahoney, Project Officer
Robert D. Hanson, Technical Monitor
Washington, .
ATC MANAGEMENT AND OVERSIGHT PROJECT REVIEW PANEL
Christopher Rojahn (Project Executive) h Elwood
Jon A. Heintz (Project Quality Control Monitor) Subhash Goel
William T. Holmes (Project Tech. Monitor) Farzad Naeim
PROJECT MITTEE CONSULTANT
artin (Project Technical Director) Dimitrios Vamvatsikos
Eduardo Miranda
Michael Valley
Notice
Any opinions, findings, conclusions, or mendations expressed in this publication do not necessarily
reflect the views of the Applied Technology Council (ATC), the Department of Homeland Security (DHS), or
the Federal Emergency Management Agency (FEMA). Additionally, neither ATC, DHS, FEMA, nor any of
their employees, makes any warranty, expressed or implied, nor assumes any legal liability or responsibility
for the accuracy, completeness, or usefulness of any information, product, or process included in this
publication. Users of information from this publication assume all liability arising from such use.
Foreword
One of the primary goals of the Federal Emergency Management Agency
(FEMA) and the National Earthquake Hazards Reduction Program (NEHRP)
is to encourage design and construction practices that address the earthquake
hazard and minimize the potential damage resulting from that hazard. This
document, Effects of Strength and Stiffness on Degradation on Seismic
Response (FEMA P440A), is a follow-on publication to Improvement of
Nonlinear Static Seismic