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Structural performance assessment of demountable GFRP dowel bar | ||
| Al-Qadisiyah Journal for Engineering Sciences | ||
| Articles in Press, Accepted Manuscript, Available Online from 02 May 2026 PDF (6.95 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.30772/qjes.2026.163854.1692 | ||
| Authors | ||
| Nabaa A Al-Shrifi1; Haider M. Al-Jelawy* 1; Hisham Jashami* 2 | ||
| 1Department of Roads and Transport Engineering, University of Al-Qadisiyah, Al Diwaniyah 58001, Iraq. | ||
| 2School of Civil and Construction Engineering, Oregon State Univ., 1491 SW Campus Way, Corvallis, OR 97331, USA. | ||
| Abstract | ||
| For jointed precast concrete pavements, this study suggests a novel demountable dowel bar system made of glass fiber reinforced polymer (GFRP). The conventional steel dowel systems have limited reuse, corrosion, and concentrated stress. On the other hand, the suggested solution features a stainless steel sleeve that accommodates the GFRP bar, providing both removability and durability. Under monotonic loading circumstances, four slab specimens measuring 300 mm, 400 mm, and 800 mm in width were put to the test. The findings demonstrated that, in contrast to specimens with traditional steel dowels, those with GFRP dowels had distinct failure processes. The suggested system's potential application in modular pavement systems was indicated by its encouraging load-bearing capability and flexibility. | ||
| Keywords | ||
| Demountable joints; GFRP dowels; Modular pavement systems; Precast concrete pavement; Stress concentration | ||
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