Numerical investigation of the interaction between structure and foundation in masonry structures

Abstract

The behavior of masonry structures is significantly influenced by structure–foundation interaction. Considering the interaction between the superstructure and the foundation is particularly important in regions exposed to seismic hazards. Although many studies have investigated the behavior of masonry walls

research focusing on the influence of the structure–foundation interface on structural performance remains limited. To address this gap

six numerical models representing different contact conditions and interlayer solutions at the structure–foundation interface are modelled. The effects of contact with and without mortar

as well as wooden

reinforced concrete

and elastomeric tie beams

on the behavior of masonry structures are evaluated. Numerical analyses are conducted using material parameters validated through experimental studies. The results demonstrate that the structure–foundation interface detail has a significant influence on lateral load capacity

stiffness

deformation distribution

and damage development. The reinforced concrete tie beam provides the highest strength

whereas the elastomeric tie beam reduces damage within the wall. The findings highlight the important role of structure–foundation interface design in the overall performance of masonry structures.