Structural Particularities for an Irregular Building, in Plan and Elevation, Situated in a Seismic Area
Tomme: 65 (69) Fascicle: 3 | 2019
Pages: 77-88
Abstract text:
One of the requirements when designing a structure in a seismic area is to choose a regular structural system, uniformly distributed in plan and elevation, in order to ensure a good seismic behaviour. The uniformly distribution on elevation leads to the reduction of possible effort concentration and ductility requirements in isolated areas of the building. In practice, there are many cases where the additional stiffness from the masonry panels led to the severe damage in the columns causing local mechanisms, respectively, until global collapse. For the case study, a mixed structural system of frames and structural walls, with irregularities in plan and in elevation, was considered. For the infill panels two materials were considered: masonry with vertical voids and autoclaved concrete. The analysis studies the stiffness increase for the considered situations and the cracks development in the linear elements of the frame. Based on the obtained results, it can be stated that the most effective solution for the infill panels of the studied structure is the autoclaved concrete.
Key Words:
seismic joint; masonry infill; stiffness; seismic behaviour; plastic hinge
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