Indian Journal of Science and Technology
Year: 2023, Volume: 16, Issue: 4, Pages: 299-308
Yasir Jari1*, Abdulrazak Abdulghafour2
1Graduate, Civil Engineering Department, Umm Al-Qura University, Saudi Arabia
2Associate Professor, Civil Engineering Department, Umm Al-Qura University, Saudi Arabia
Email: [email protected]
Received Date:28 October 2022, Accepted Date:05 January 2023, Published Date:03 February 2023
Objectives: This study investigates the optimization of reinforced concrete flat slabs and establishes a relationship between span, live load, and material costs. Methods: The study used the direct design method per Saudi Building Code limitations, iterative design, and pattern search methods to establish a mathematical model that prescribes the span-cost relationship. The study conducted variable live loading tastings and cost estimates on multiple flat slab panels with distinct dimensions. Findings: The results showed that slab material unit cost increases significantly with span while live load had little impact. Material costs included concrete, steel, and forms which compose 36%, 52%, and 12%, respectively of the total. Each increment in span by 1 meter raises slab material unit cost by 19% starting form 4 meters span as a baseline. Increasing live load by 1 kN/m2 increase cost by roughly 2% for square panels and 1% for rectangular ones. However, results proved that using 1:1 panel dimension is more economical than panels with 2:1 ratio. Novelty: The study provided a mathematical model to estimate flat slab cost more accurately in preliminary estimations before the design phase.
Keywords: Material Costs; Flat Slab Cost; Live Load Impact on Cost; Span Impact on Cost; Slab Unit Cost; Cost Optimization
© 2023 Jari & Abdulghafour. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)
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