Authors :
Arifujjaman; Ibnul Warah; Ashraful Alam
Volume/Issue :
Volume 9 - 2024, Issue 1 - January
Google Scholar :
http://tinyurl.com/mr25daf4
Scribd :
http://tinyurl.com/m4nwwhuk
DOI :
https://doi.org/10.5281/zenodo.10538389
Abstract :
Masonry infill wall RC structures are the most
vulnerable against earthquake load because of rapid deg-
radation of stiffness, strength, and energy dissipation ca-
pacity that lead to the brittle failure of the masonry infill
walls. In Bangladesh commonly seen most of the RC
structures have open the ground floor uses for parking
and other purposes that causes the soft story problem.
This study concentrates on the laboratory tests to assess
the safety and performance of masonry infilled (clay
brick, sand-cement hollow block and hollow clay block)
RC frames due to seismic loads as well as to develop prac-
tical and cost-efficient techniques for the seismic retrofit
and repair of these structures using indigenous materials.
Cyclic load is applied by means of Reverse Loading Hy-
draulic Jack (capacity 60 tons) mounted on the Reaction
Frame. At the time of applying cyclic load the behavior of
the test model specimens is observed by means of Data
Acquisition System. After the application of cyclic load,
the damaged specimens are retrofitted with ferrocement
laminates for observing their behavior under same load.
This study provides a justified and cost-effective preven-
tive and retrofit measure to protect “soft-story” or “weak-
story” problem for infill wall RC frame structures.
Keywords :
Cyclic Load, Hydraulic Jack, Infill wall, RC Frames, Retrofit, Ferrocemet, Soft -Story.
Masonry infill wall RC structures are the most
vulnerable against earthquake load because of rapid deg-
radation of stiffness, strength, and energy dissipation ca-
pacity that lead to the brittle failure of the masonry infill
walls. In Bangladesh commonly seen most of the RC
structures have open the ground floor uses for parking
and other purposes that causes the soft story problem.
This study concentrates on the laboratory tests to assess
the safety and performance of masonry infilled (clay
brick, sand-cement hollow block and hollow clay block)
RC frames due to seismic loads as well as to develop prac-
tical and cost-efficient techniques for the seismic retrofit
and repair of these structures using indigenous materials.
Cyclic load is applied by means of Reverse Loading Hy-
draulic Jack (capacity 60 tons) mounted on the Reaction
Frame. At the time of applying cyclic load the behavior of
the test model specimens is observed by means of Data
Acquisition System. After the application of cyclic load,
the damaged specimens are retrofitted with ferrocement
laminates for observing their behavior under same load.
This study provides a justified and cost-effective preven-
tive and retrofit measure to protect “soft-story” or “weak-
story” problem for infill wall RC frame structures.
Keywords :
Cyclic Load, Hydraulic Jack, Infill wall, RC Frames, Retrofit, Ferrocemet, Soft -Story.
