This document discusses and illustrates how to analyze infill building with an example in
ETABS© building analysis and design software by Computers and Structures, Inc. of a 2-D
nonlinear static “pushover” analysis of a six storey RC building with URM infill walls, based
on guidelines and modeling procedures given in the ATC-40 and FEMA-356 documents. The
procedures for defining the strength and stiffness of equivalent strut members used to model
infill walls are also applicable for linear analyses.
This manual was developed as part of a project that NED University of Engineering (NED)
and Technology and GeoHazards International (GHI), a California based non-profit
organization that improves global earthquake safety, conducted together to assess and design
seismic retrofits for existing buildings typical of the local building stock, such as the one
described in this report. The project was funded by the Pakistan Higher Education
Commission (HEC) and The National Academies through a grant from the United States
Agency for International Development (USAID).