# Strengthening and Cost Efficiency of GFRP-Reinforced Bridge Deck Slabs: A Case Study
> Amir M.

URL kanonis: https://discover.unhas.ac.id/publications/pub_scopus_105038302179
Jurnal / Konferensi: Engineering Technology and Applied Science Research
Tahun terbit: 2026
DOI: https://doi.org/10.48084/etasr.16798
ISSN: 22414487
Kuartil SJR: Q2
Citations: 0

## Authors
- Amir M.

## Abstract
Bridges are essential for national and regional connectivity, yet their deck slabs often deteriorate over time due to excessive loads, material fatigue, and environmental exposure, potentially reducing their structural safety. This study evaluates (1) the structural performance improvement of the Pute Bridge-river deck slab after strengthening with Glass Fiber Reinforced Polymer (GFRP) and (2) the cost efficiency of GFRP compared to conventional slab replacement. The methodology involved structural modeling using the SAP2000 v22, static load testing using a Deflection Multimeter (DMM), and cost analysis based on Analisa Harga Satuan Pekerjaan (AHSP) translated as Unit Price Analysis. The results indicate a 20.80% increase in load capacity (from 274 to 331 tons) and over 90% reduction in deflection at critical points, with mid-span deflection decreasing from -66.70 mm to -3.50 mm. Economically, GFRP strengthening costs 518,792,152.60 Rp, making it 28.62% more economical than slab replacement. Overall, GFRP proves both technically effective and cost-efficient, making it a significant solution for bridge deck slab rehabilitation due to its time efficiency, minimal traffic disruption, and long-term durability.

## Keywords
- Deck
- Slab
- Deflection (physics)
- Structural engineering
- Fibre-reinforced plastic
- Bridge deck
- Structural load
- Engineering
- Cost effectiveness
- Forensic engineering
- Economic efficiency
- Cost reduction
- Structural system
- Cost efficiency
- Glass fiber
- Unit cost
- Load factor
- Cost analysis
- Structural health monitoring
- Reinforced concrete
- Civil engineering

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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