TY - JOUR
T1 - Irregularity of the distribution of masonry infill panels and its effect on the seismic collapse of reinforced concrete buildings
AU - Vielma, Juan Carlos
AU - Aguiar, Roberto
AU - Frau, Carlos
AU - Zambrano, Abel
N1 - Funding Information:
Funding: This research was funded by the Pan‐American Institute of Geography and History (grant number IPGH GEOF 01‐2018), and the article processing charge (APC) was funded by Pontificia Universidad Católica de Valparaíso.
Funding Information:
This research was funded by the Pan?American Institute of Geography and History (grant number IPGH GEOF 01?2018), and the article processing charge (APC) was funded by Pontificia Universidad Cat?lica de Valpara?so.
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/9
Y1 - 2021/9
N2 - On 16 April 2016, an earthquake of Mw 7.8 shook the coast of Ecuador, causing the de-struction of buildings and a significant number of casualties. Following a visit by the authors to the city of Portoviejo during the debris removal and recovery stage, it was noted that several reinforced concrete buildings located on corners had collapsed in the central part of the city. These buildings were characterized by the presence of masonry at the edges of the buildings but not between the two mostly open‐plan facades on the corner for practical reasons. This article reviews the effect of masonry infill panels on the seismic response of reinforced concrete structures. For this, a model that contains the geometric and mechanical characteristics typical of collapsed buildings was gen-erated and subjected to nonlinear analysis, with both static and dynamic increments. The results show the clear influence of the masonry infill panels on the structural response through the torsional behavior that is reflected in the evolution of the floor rotations. Finally, dynamic incremental analysis is used to obtain the collapse fragility curve of the building, and a new damage measure based on floor rotations is proposed.
AB - On 16 April 2016, an earthquake of Mw 7.8 shook the coast of Ecuador, causing the de-struction of buildings and a significant number of casualties. Following a visit by the authors to the city of Portoviejo during the debris removal and recovery stage, it was noted that several reinforced concrete buildings located on corners had collapsed in the central part of the city. These buildings were characterized by the presence of masonry at the edges of the buildings but not between the two mostly open‐plan facades on the corner for practical reasons. This article reviews the effect of masonry infill panels on the seismic response of reinforced concrete structures. For this, a model that contains the geometric and mechanical characteristics typical of collapsed buildings was gen-erated and subjected to nonlinear analysis, with both static and dynamic increments. The results show the clear influence of the masonry infill panels on the structural response through the torsional behavior that is reflected in the evolution of the floor rotations. Finally, dynamic incremental analysis is used to obtain the collapse fragility curve of the building, and a new damage measure based on floor rotations is proposed.
KW - Collapse fragility curve
KW - Damage measure
KW - Incremental dynamic analysis
KW - Masonry infill panels
KW - Torsional behavior
UR - http://www.scopus.com/inward/record.url?scp=85115315607&partnerID=8YFLogxK
U2 - 10.3390/app11188691
DO - 10.3390/app11188691
M3 - Article
AN - SCOPUS:85115315607
VL - 11
JO - Applied Sciences (Switzerland)
JF - Applied Sciences (Switzerland)
SN - 2076-3417
IS - 18
M1 - 8691
ER -