A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pushover analysis of unreinforced irregular masonry buildings: Lessons from different modeling approaches
The present paper addresses the seismic performance of a half-scale two-story unreinforced masonry (URM) building with structural irregularity in plan and in elevation. The main objectives are (i) to understand the seismic response of URM buildings with torsional effects, and (ii) to evaluate the reliability of using simplified approaches for irregular masonry buildings. For this purpose, nonlinear static analyses are carried out by using three different modeling approaches, based on a continuum model, beam-based and spring-based macro-element models. The performance of each approach was compared based on capacity curves and global damage patterns. Reasonable agreement was found between numerical predictions and experimental observations. Validation of simplified approaches was generally provided with reference to regular structures but, based on the differences in the base shear capacity found here, it appears that structural irregularities are important to be taken into account for acquiring higher accuracy on simplified methods when torsion is present. ; The first author acknowledges the financial support from the Portuguese Foundation for Science and Technology (FCT) through the Ph.D. Grant SFRH/BD/143949/2019. This work is financed by national funds through FCT, in the scope of the research project "Experimental and Numerical Pushover Analysis of Masonry Buildings (PUMA) (PTDC/ECI-EGC/29010/2017).
Pushover analysis of unreinforced irregular masonry buildings: Lessons from different modeling approaches
The present paper addresses the seismic performance of a half-scale two-story unreinforced masonry (URM) building with structural irregularity in plan and in elevation. The main objectives are (i) to understand the seismic response of URM buildings with torsional effects, and (ii) to evaluate the reliability of using simplified approaches for irregular masonry buildings. For this purpose, nonlinear static analyses are carried out by using three different modeling approaches, based on a continuum model, beam-based and spring-based macro-element models. The performance of each approach was compared based on capacity curves and global damage patterns. Reasonable agreement was found between numerical predictions and experimental observations. Validation of simplified approaches was generally provided with reference to regular structures but, based on the differences in the base shear capacity found here, it appears that structural irregularities are important to be taken into account for acquiring higher accuracy on simplified methods when torsion is present. ; The first author acknowledges the financial support from the Portuguese Foundation for Science and Technology (FCT) through the Ph.D. Grant SFRH/BD/143949/2019. This work is financed by national funds through FCT, in the scope of the research project "Experimental and Numerical Pushover Analysis of Masonry Buildings (PUMA) (PTDC/ECI-EGC/29010/2017).
Pushover analysis of unreinforced irregular masonry buildings: Lessons from different modeling approaches
Asikoglu, Abide (author) / Vasconcelos, Graça (author) / Lourenço, Paulo B. (author) / Panto, Bartolomeo (author)
2020-01-01
doi:10.1016/j.engstruct.2020.110830
Article (Journal)
Electronic Resource
English
DDC:
690
Higher Mode Effects in Pushover Analysis of Irregular Masonry Buildings
| Taylor & Francis Verlag | 2021
AN EFFICIENT APPROACH FOR PUSHOVER ANALYSIS OF UNREINFORCED MASONRY (URM) STRUCTURES
| Online Contents | 2006