Behavior And Analysis Of Masonry-infilled
Reinforced Concrete Frames Subjected To
Lateral Load
Author(s)
P. Farshidnia
Abstract
Infilled frame constructions have been in use for more than 200 years. Masonry
infills have often been treated as nonstructural elements and their structural
presence is often ignored by engineers. The infill panels may interact with
bounding frames when the structure is subjected to strong lateral loads induced
by seismic load. Such interaction shows some positive and negative effects on
the structure and has been the subject of many debates. The experimental results
demonstrated that the masonry infill walls benefit the buildings due to the
amount of increase in the initial stiffness of the reinforced concrete frames. On
the other hand, infill walls have been related to failures, such as the development
of soft stories and the brittle shear failure of columns induced by the shortcolumn
effect. In spite of the structural effects of bounding frames, masonry
infills have not been treated in EC 8. During the last 50 years, a number of
different analytical models (micro- and macro-models) have been developed to
evaluate infilled structures under in-plane and out-of-plane horizontal dynamic
actions. This paper presents a literature review of analytical research conducted
on infilled frames, compares design provisions related to masonry infill in
seismic design codes of different countries and discusses the shortcomings of the
national guidelines.
Keywords: masonry infilled, RC Frame, lateral load, micro and macro modeling.
1 Introduction
Masonry-infilled panels can be found as interior and exterior walls in reinforced concrete (RC) and steel-framed structures in several countries worldwide. The
interaction of the masonry infills with the surrounding frames has a major
Keywords
masonry infilled, RC Frame, lateral load, micro and macro modeling.
Related Book
Other papers in this volume
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