Effects of local soil class on dynamic behavior of masonry structures
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Keywords:
Masonry Structures, Seismic Behavior, Time History Analysis, Finite Element Modeling, SAP2000, Soil ClassAbstract
Masonry structures are a pervasive construction type in our country, particularly in rural and
historical settlement areas, due to their economic and straightforward construction. Nevertheless, the
seismic resistance of such structures is generally low and is significantly affected by soil properties. This
study investigates the effects of different soil classes on the dynamic behaviour of a multi-storey masonry
structure. To this end, a prototype three-storey masonry structure was modelled in the SAP2000 program,
and modal analysis and time history analyses were conducted for five distinct soil classes as defined in
TBDY 2018. The modal analysis yielded the first natural period of the structure as 0.084 s. The time history
analysis results demonstrated that the soil class had a significant effect on the structural responses. While
the ZC soil class produced the highest base shear force, displacement and stress values, the ZE soil class
produced the lowest values. The findings indicate the effect of soil conditions on the structural behaviour
and emphasise the necessity of considering the soil-structure interaction in the earthquake design of
masonry structures.
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