Evaluation of the Seismic Performance of a Building with Integrated System of 'Confined Masonry' and 'Concrete Frame' (ISMF)

Advancements in structural engineering
continue to develop more efficient models for various
applications. However, traditional structural systems
remain predominant in construction despite their
limitations in ensuring adequate performance under static
or dynamic loads. The main challenge lies in the
vulnerability of concrete frame (CF) systems, which tend
to experience large displacements and stiffness degradation
compared to confined masonry (CM) systems, which,
while rigid, exhibit limited ductility. This study analyzes
the seismic behavior of a hybrid system that combines CF
and CM, referred to as the Integrated system of 'Confined
Masonry' and 'Concrete Frame' (ISMF). The proposed
system leverages the stiffness and shear absorption
capacity of CM while benefiting from the ductility and
moment resistance of CF. The methodology includes static
and dynamic analyses on representative structural models,
evaluating key parameters such as displacements, drifts,
base shear forces, and overturning moments in structures
up to four stories. The results demonstrate that hybrid
configurations efficiently control deformations and
distribute forces more uniformly, highlighting the
contribution of masonry to lateral stiffness and the role of
frames in resisting moments. Finally, optimal models were
identified, and regulatory adjustments were proposed to
ensure structural safety and economic feasibility in
seismic-prone regions of Peru.