TY - JOUR
T1 - Seismic assessment of irregular masonry macro-elements through a nonlinear framed model
T2 - a case study
AU - Torres, Wilson
AU - Almazán, José Luis
AU - Sandoval, Cristián
AU - Boroschek, Rubén
N1 - Publisher Copyright:
© 2019, Springer Nature B.V.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - The seismic assessment of heritage structures with complex architecture, such as masonry churches, remains a challenging task. In most cases, an accurate and reliable assessment of this type of constructions requires computationally expensive nonlinear analyses. Due to this, simplified models, with an optimal compromise between accuracy and computational burden, continue to be necessary. This paper focuses on assessing the performance of an equivalent framed model, built from beam–column elements with concentrated plasticity at the ends, to simulate the in-plane seismic response of irregular masonry macro-elements. The case under study is the nave macro-element of the Metropolitan Cathedral of Santiago, Chile. The performance of the proposed model is evaluated by comparing its results with the results of a previously generated model based on the rigid body spring model, considering both static and dynamic analysis. The proposed model, which is generated in the open source software OpenSees, shows that can satisfactorily reproduce the macro-element’s state of deterioration for different seismic intensities.
AB - The seismic assessment of heritage structures with complex architecture, such as masonry churches, remains a challenging task. In most cases, an accurate and reliable assessment of this type of constructions requires computationally expensive nonlinear analyses. Due to this, simplified models, with an optimal compromise between accuracy and computational burden, continue to be necessary. This paper focuses on assessing the performance of an equivalent framed model, built from beam–column elements with concentrated plasticity at the ends, to simulate the in-plane seismic response of irregular masonry macro-elements. The case under study is the nave macro-element of the Metropolitan Cathedral of Santiago, Chile. The performance of the proposed model is evaluated by comparing its results with the results of a previously generated model based on the rigid body spring model, considering both static and dynamic analysis. The proposed model, which is generated in the open source software OpenSees, shows that can satisfactorily reproduce the macro-element’s state of deterioration for different seismic intensities.
KW - Bar-type elements
KW - Heritage constructions
KW - Macro-element modelling
KW - Masonry building
KW - Non-linear analysis
KW - Seismic performance
UR - http://www.scopus.com/inward/record.url?scp=85068153773&partnerID=8YFLogxK
U2 - 10.1007/s10518-019-00657-6
DO - 10.1007/s10518-019-00657-6
M3 - Article
AN - SCOPUS:85068153773
SN - 1570-761X
VL - 17
SP - 4937
EP - 4960
JO - Bulletin of Earthquake Engineering
JF - Bulletin of Earthquake Engineering
IS - 9
ER -