Static nonlinear analysis with incremental thrust for the evaluation of the performance level of a typical residential building with reinforced concrete walls
DOI:
https://doi.org/10.21703/0718-2813.2024.35.2802Keywords:
Pushover analysis, Performance-based design, Seismic demand, N2 methodAbstract
The static nonlinear analysis has been developed for a reinforced concrete building to study the flexo-compression behaviour of the shear walls and estimate the damage beginning when the structures reach the limit state defined in ACHISINA performance-based seismic design document. A refined fiber model has been incorporated throughout the entire height of the building considering the confined behaviour of the concrete from the detailing of the structural elements. A stiff diaphragm has been considered in the structure to model the behaviour of the reinforced concrete slab. The N2 method has been implemented considering a seismic demand in acceleration displacement format based on the displacement spectrum establish in the DS61, enacted after the Mw = 8.8 Maule Earthquake in 2010. Regarding this result, it is concluded that the building obtains an immediate occupancy performance level for drifts close to 5‰ in the symmetrical Y direction, a greater amount of structural damage, proportional to a life safety performance level, is observed.
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