Effect of brick masonry infill walls on seismic performance of reinforced concrete frame structures in Afghanistan

Scientific paper - Original scientific paper

• Author: Qudratullah Sharafi
• Author: Ahmad Naqi
• Author: Saito Taiki
• Author's institution: University of Zagreb; Faculty of Civil Engineering
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract (english)

Reinforced Concrete (RC) frame structures are designed and constructed in the major parts of
Afghanistan. Meanwhile, the brick masonry wall is one of the most common material that is used
as internal and external walls inside the reinforced concrete frame for the building construction.
The brick masonry infill wall is defined as a non-structural element for the common structural
design software, where only weight is considered, not its strength or stiffness. The Hindu-Kush
earthquake, October 2015 that happened in Afghanistan showed that, the buildings with brick
masonry walls had less damage or small cracks on the walls. While the buildings without brick
masonry walls (bare frames) had serious damage or shear failure on columns. Therefore, the
current research aims to find out the effects of brick masonry walls to the seismic performance
of RC frame structures by conducting earthquake response analyses of the frame models with
and without brick masonry walls. The structural model is based on an actual school building (the
24-classroom school building project that has been designed as a special moment resisting frame
with three-stories and constructed in Kabul, Afghanistan). Input earthquake ground motions are
generated artificially based on the Afghanistan design spectrum and the phase spectrum of actual
earthquake records, such as 1940 El Centro earthquake, 1995 Kobe earthquake and 2003 Bamearthquake. The nonlinear frame analysis program, STERA 3D, developed by one of the authors
is used for the analysis, where the backbone curve of the masonry element is defined including
the deterioration of the bearing capacity after yielding. The performance of the frame model is
examined to verify the effects of masonry elements from the natural period, the story drift and
the damage of the frame and brick masonry walls.

• Keywords (english): Reinforced concrete buildings, brick masonry wall, earthquake response analysis
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Unknown
• Publication version: Published version
• Publication title: 1st Croatian Conference on Earthquake Engineering 1CroCEE
• Numbering: pp. 921-930
• p-ISSN: 3043-8071
• DOI: https://doi.org/10.5592/CO/1CroCEE.2021.76
• URN:NBN: urn:nbn:hr:237:450431
• Publication: 2021-03
• Conference: Title: st Croatian Conference on Earthquake Engineering; Location: Zagreb, Croatia; Start date: 2021-03-22; End date: 2021-03-24; Assembly type: Lecture
• Type of resource: Text
• Publisher: Sveučilište u Zagrebu Građevinski fakultet
• Access conditions: Open access
• Created on: 2024-09-02 06:03:00