| Naslov: | Multiparametric ▫$Cost–CO_2$▫ optimization of bored reinforced-concrete piles under combined loading in cohesive soils |
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| Avtorji: | ID Jelušič, Primož (Avtor) |
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| Datoteke: |  buildings-15-04519-v2.pdf (6,87 MB)
MD5: BEEE1D7203F3D720A045B50600973EF4
 https://www.mdpi.com/2075-5309/15/24/4519
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Članek v reviji |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FGPA - Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo
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| Opis: | Laterally loaded slender piles present a classic soil–structure interaction problem where pile displacements and flexural demands are governed by the mobilized lateral resistance of the surrounding soil and the axial-bending capacity of the reinforced concrete section. In response to increasing pressure to reduce embodied emissions, this study develops LAVERCO, an optimization framework for cost- and CO2-efficient design of bored reinforced-concrete piles in cohesive soils subjected to combined lateral and axial actions. The framework integrates Eurocode-based geotechnical checks with full N–M section verification of the RC pile and applies a genetic algorithm over a multi-parametric grid of lateral load, vertical load, and undrained shear strength, using economic cost and embodied CO2 as alternative single objectives. Rank-based (Spearman) sensitivity analysis quantifies how actions, soil strength, and design variables influence the optimal solutions. The results reveal two consistent geometry regimes: CO2-optimal piles are systematically longer and slimmer, while COST-optimal piles are shorter and thicker. In both cases, the objective is dominated by pile length and is reduced by higher undrained shear strength; vertical load has a moderate direct effect, while horizontal load contributes mainly through deflection and bending checks. Feasibility improves significantly in stronger clays, and CO2-optimal geometries generally incur higher costs, clarifying the trade-off between economic and environmental performance. The framework provides explicit geometry-level guidance for selecting bored pile designs that balance cost and embodied CO2 across a wide range of soil and loading conditions and can be directly applied in both preliminary and detailed designs. |
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| Ključne besede: | laterally loaded pile, reinforced-concrete piles, structural analysis, reinforced-concrete design, optimization, CO2 emissions, genetic algorithm, multiparametric analysis, civil engineering practice |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 18.11.2025 |
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| Datum sprejetja članka: | 12.12.2025 |
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| Datum objave: | 14.12.2025 |
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| Založnik: | MDPI |
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| Leto izida: | 2025 |
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| Št. strani: | 19 str. |
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| Številčenje: | Vol. 15, iss. 24, [article no.] 4519 |
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| PID: | 20.500.12556/DKUM-96552  |
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| UDK: | 624.131:519.8 |
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| COBISS.SI-ID: | 263996419 |
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| DOI: | 10.3390/buildings15244519 |
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| ISSN pri članku: | 2075-5309 |
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| Datum objave v DKUM: | 19.01.2026 |
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| Število ogledov: | 132 |
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| Število prenosov: | 10 |
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| Metapodatki: |    |
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| Področja: | Ostalo
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