Seismic Vulnerability Of Masonry Infilled
Reinforced Concrete Frame Structures
Author(s)
A. Madan
Abstract
Despite intense worldwide research in the area of masonry infilled frame
structures during the past half a century, displacement-based non-linear analyses
of masonry infilled frames with explicit consideration of infill panels as
structural elements is far from common practice in earthquake resistant design of
such structures. The displacements are of particular interest from the viewpoint
of performance-based design (PBD), the emerging paradigm for the next
generation of standard codes of practice for earthquake resistant design. The
present paper is based on an analytical study of the seismic performance and
vulnerability of typical planar masonry infilled reinforced concrete (R/C) frames
considering the effect of distribution of masonry infill panels over the elevation
of the R/C frame using rational displacement based analysis methods such as
non-linear dynamic time-history analysis based on realistic and efficient
hysteretic models of the structural elements. The results of the displacementbased
analyses are used to develop seismic vulnerability curves in probabilistic
terms for the populations of typical medium-rise masonry infilled reinforced
concrete (R/C) framed buildings. The proposed seismic vulnerability curves are
termed as fragility curves in the present study that provide useful tools for
predicting life and economic losses in the event of a future earthquake.
Keywords: seismic vulnerability, seismic demand, fragility analysis,
performance based seismic design.
1 Introduction
More than 90 percent of multi-story buildings in urban India and, in general,
Asia are constructed as reinforced concrete (R/C) framed structures with
Keywords
seismic vulnerability, seismic demand, fragility analysis,
performance based seismic design
Related Book
Other papers in this volume
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