This system innovates prestressed concrete beam construction by using Basalt Fibre Reinforced Polymer (BFRP) bars instead of traditional steel. It includes a T-frame structure with a spandrel beam and steel formworks. BFRP bars are pre-tensioned using a hydraulic jack, casting concrete around them, and then releasing the prestress to reinforce the concrete. The system aims to improve durability and reduce corrosion concerns compared to steel prestressing methods.
The proposed system offers a unique approach to prestressed concrete beam construction by integrating Basalt Fibre Reinforced Polymer (BFRP) bars. Unlike traditional steel methods, it eliminates the need for end blocks, simplifying construction and reducing costs. The use of BFRP bars enhances durability by mitigating corrosion issues and offers potential for widespread application in infrastructure projects. The system's design includes innovative features such as adjustable mechanisms and stiffener plates, tailored for efficient and reliable prestressing operations using non-metallic, high-strength BFRP materials.
The proposed system offers a unique approach to prestressed concrete beam construction by integrating Basalt Fibre Reinforced Polymer (BFRP) bars. Unlike traditional steel methods, it eliminates the need for end blocks, simplifying construction and reducing costs. The use of BFRP bars enhances durability by mitigating corrosion issues and offers potential for widespread application in infrastructure projects. The system's design includes innovative features such as adjustable mechanisms and stiffener plates, tailored for efficient and reliable prestressing operations using non-metallic, high-strength BFRP materials.
- Unique Features: The prototype features Basalt Fibre Reinforced Polymer (BFRP) bars, offering exceptional durability and corrosion resistance compared to traditional steel reinforcement. This makes it ideal for long-lasting and sustainable infrastructure projects.
- Prototype Details: The prototype includes a T-frame with ISMB-450 beams and an ISMB-150 spandrel beam, supported by steel formworks made from EN250 material. It employs 8 mm diameter BFRP bars threaded through holes in the beams and anchored with mechanical wedges. A 50T hydraulic jack applies pre-tensioning force, supported by adjustable bolts and rubber rollers for precise alignment and smooth operation. This setup demonstrates BFRP's lightweight properties, ease of handling, and suitability for environments requiring robust, corrosion-resistant materials.
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- Environmental Sustainability: Reduces environmental impact by BFRP bars, which are non-corrosive and have lower carbon footprint compared to steel.
- Infrastructure Durability: It mitigates the corrosion issues and hence enhance the lifespan of infrastructure
- Cost Efficiency: Reduces maintenance costs over the lifetime of structures due to BFRP's durability and lower maintenance requirements.
Construction and Infrastructure, Materials Science, Manufacturing, Environmental Engineering:
- Infrastructure Construction: Bridges, viaducts, flyovers, and other large-span structures where durability and long-term performance are critical.
- Building Construction: High-rise buildings, parking structures, and residential complexes requiring strong and durable concrete elements.
- Transportation:Railway sleepers, tunnel linings, and other transportation infrastructure benefiting from lightweight and corrosion-resistant materials.
- Environmental Engineering: Applications in water treatment plants, dams, and coastal structures due to BFRP's resistance to corrosion and environmental degradation.
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