Equivalent Frame Modelling of an Unreinforced Masonry Building in Finite Element Environment

摘要: Equivalent frame method (EFM) is a viable modelling option for global seismic analysis of masonry buildings in comparison to more refined techniques, such as finite elements (FE), especially professional practice [1, 2, 3]. EFM takes advantage building’s geometric regularity, both plan and elevation, well the good quality floors stiffness, required activation box-like behaviour under loads. However, typical vulnerabilities existing unreinforced (URM) buildings, e.g. highly flexible floors, openings too close one another, poor masonry, isolated pillars or non-vertically aligned walls, limit effectiveness application. Recently, many studies have been devoted expanding possibilities applying which do not meet box-behaviour hypotheses [4, 5, 6].