Effect of shell spacing on mechanical behavior of multi-span soil-steel composite structure

Legese, Alemu Mosisa; Różański, Adrian; Sobótka, Maciej

doi:10.1016/j.heliyon.2023.e23376

Heliyon

2024

DOI: 10.1016/j.heliyon.2023.e23376

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Effect of shell spacing on mechanical behavior of multi-span soil-steel composite structure

Alemu Mosisa Legese,

Adrian Różański,

Maciej Sobótka

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2024

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Cited by 2 publications

References 29 publications

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Numerical analysis of soil–steel composite structure performance at ultimate load: impact of stiffening ribs and geotextile reinforcement

Legese,

Różański,

Sobótka

et al. 2024

Arch. Civ. Mech. Eng.

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This study investigates soil–steel composite structures, emphasizing the role of stiffening ribs and geotextile reinforcement through comprehensive numerical modeling. This study presents a two-dimensional finite element analysis (FEA) and compares the influence of stiffening rib and geotextile on the ultimate bearing capacity of the soil–steel composite structures. The results of this study demonstrate a significant enhancement in load capacity. Specifically, a notable 47% improvement was observed with a stiffening rib, and a 26% increase was noted with the use of a single layer of geotextile. Under peak load, the vertical displacement at the crown exceeds the permissible standard for all models except for one model, while bending moments reach their limits, marking a failure mode of composite system considered. Structures with stiffened ribs reach their load capacity due to the creation of a plastic hinge around the shoulder and haunch of the shell. On the other hand, in structures without stiffening ribs, the crown and haunch section of the shell becomes fully plastic under peak load. The maximum axial thrust is shown in geotextile-reinforced structure, reaching 78% of the shell maximum capacity due to compression. Eventually, stiffening rib substantially improves overall load-bearing capacity of the soil–steel composite structures, and geotextile placement in the upper part of the backfill reduces shell deflection due to bending.

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Numerical analysis of soil–steel composite structure performance at ultimate load: impact of stiffening ribs and geotextile reinforcement

Legese,

Różański,

Sobótka

et al. 2024

Arch. Civ. Mech. Eng.

View full text Add to dashboard Cite

show abstract

Influence of geotextile soil reinforcement layout on the deformation of a model soil-steel composite structure

Legese,

Wysokowski,

Różański

et al. 2024

Engineering Structures

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Effect of shell spacing on mechanical behavior of multi-span soil-steel composite structure

Cited by 2 publications

References 29 publications

Numerical analysis of soil–steel composite structure performance at ultimate load: impact of stiffening ribs and geotextile reinforcement

Numerical analysis of soil–steel composite structure performance at ultimate load: impact of stiffening ribs and geotextile reinforcement

Influence of geotextile soil reinforcement layout on the deformation of a model soil-steel composite structure

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