NUMERICAL MULTI-MODELING AND SEISMIC ANALYSIS OF HISTORICAL URM BUILDING
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Abstract:
In recent years, it has been observed that historical unreinforced masonry buildings are the most damaged structures after an earthquake event, mainly due to the degradation of materials and the non symmetric distribution of bearing walls. Its conservation is then important when it represent an architectural artistic asset especially when it is still functional. In this paper, the seismic performance-based assessment developed within the European PERPETUATE project was applied adopting two different modeling strategies, structural element model SEM for macroelements with regular geometric forms and continuum constitutive law model CCLM for arcades. The case of this study is an historical masonry building, considered as a valuable architectural heritage of Mostaganem city in Algeria. The assessment is performed by static non linear analysis of the building assuming that the response of the structure is well described by a set of macroelements that are analyzed separately. Pushover analysis of each bearing wall was implemented using Tremuri software for SEM model and the finite element Ansys software for CCLM model by supposing a micro-modeling of materials. The results obtained by combination of the aforementioned models allowed us to establish fragility curves that represent the response of the whole asset corresponding to four performances levels.
Language:
English
Published:
Asian journal of civil engineering, Volume:18 Issue: 8, Dec 2017
Page:
1341
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