TITLE:
Influential aspects on seismic performance of confined masonry construction
AUTHORS:
Ajay Chourasia, Sriman K. Bhattacharyya, Pradeep K. Bhargava, Navratan M. Bhandari
KEYWORDS:
Confined Masonry; Reinforcement Detailing; Panel Aspect Ratio; Masonry Interface; Multiple Confining Column; Damage Pattern
JOURNAL NAME:
Natural Science,
Vol.5 No.8A,
August
20,
2013
ABSTRACT:
Recent earthquakes
around the world have resulted in loss of human lives and high economic losses
due to poor performance of unreinforced masonry constructions as well as
poorly-built reinforced concrete framed buildings. This has necessitated alternative
building technologies with improved seismic performance. Confined masonry (CM)
construction, has shown excellent behavior during past earthquakes across the
world and requires similar skill at a marginally higher cost than that of
unreinforced masonry. This paper summarizes the main features of generic
construction and gains insight into the behavior of CM elements under
earthquake excitations, representing a viable alternative for safe and
economical construction in seismic areas.The paper discusses
various influential aspects like sequence of construction, properties
and type of masonry material, structural configuration, reinforcement detailing
in tie column/beam and masonry, panel aspect ratio, interface between concrete
and masonry, axial stress, multiple confining column, opening in wall panels
and damage pattern etc. along with solution to overcome the limitations.