Journal of Materials and Engineering Structures
Volume 12, Numéro 4, Pages 611-623
2025-12-30

A Comparative Analysis Of Isolated And Tapered Footing With Insertions For Eccentric Load



Authors : Saraogi Anurag . Garg Vivek . Dubey S.k. .

Abstract

Conventional footings for boundary line columns often suffer from tilt and uneven pressure distribution due to eccentric loading, reducing their performance. While combined and strap footings are commonly used to address eccentric loads, they rely on adjacent footings, limiting their effectiveness in independent foundation systems. This study develops and evaluates two innovative designs—Isolated Footing with Insertion (IFI) and Tapered Footing with Insertion (TFI)—to mitigate these challenges. Using finite element analysis in ANSYS, the performance of these designs was assessed under varying eccentric loading conditions, with insertion depth ratios (H/B) ranging from 0 to 1.0 and eccentricity ratios (x/B) from 0.1 to 0.5. Results indicate that both designs significantly outperform conventional footings, with the IFI design reducing settlement and tilt by up to 5 times at H/B = 1.0. The TFI design demonstrated further improvements, delivering 1.18 to 1.39 times better performance than IFI across all insertion depths while reducing material usage by 15–20%. Optimal performance for TFI was observed at H/B = 0.4, striking a balance between structural efficiency and material economy. These findings highlight TFI as an efficient and economical solution for managing eccentric loads, particularly for boundary columns and space-constrained sites.

Keywords

Eccentric loading ; Finite element analysis ; Footing with insertion ; Settlement analysis ; Tapered footing with insertion ; Tilt control

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