Published Online:July 2025
Product Name:The IUP Journal of Structural Engineering
Product Type:Article
Product Code:IJSE020725
DOI:10.71329/IUPJSE/2025.18.3.21-41
Author Name:Pruthviraj S R, K Manjunatha and C M Ravi Kumar
Availability:YES
Subject/Domain:Engineering
Download Format:PDF
Pages:21-41
The paper evaluates the behavior of a mid-rise building supported by a pile foundation subjected to lateral loads, particularly for liquefaction-induced soil. The objective is to understand the seismic behavior of mid-rise buildings, considering Soil-Structure Interaction (SSI) for medium stiff soil (in general) and liquefiable soil. To achieve this, a ten-story building is considered and modeled using ETABS software. Subsequently, SSI was analyzed using Abaqus considering a pile depth of 15 meters. The findings show that the building on liquefaction-prone soil experiences a larger displacement, whereas the same building on medium stiff soil shows a lesser displacement. This indicates that displacement in liquefiable soil is significantly higher than that of medium stiff soil. The stresses in the liquefiable soil are also higher compared to those of medium stiff soil. This is attributed to the loose structure of sandy soil, which has a higher tendency to undergo liquefaction. Consequently, structures on liquefiable soil exhibit greater settlement than those of medium stiff soil.
In earthquake-prone areas with liquefiable soils, civil engineers face significant challenges when designing safe and economical high-rise buildings (Choudhury et al., 2015).