2023 TDA 5-1 ONGOING
Release time: 2024/07/22 Publisher： original Views：
Fire endurance and creep resistance improvement for
application of GFRP rebars
Principal Investigator：
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Hu Lili Shanghai Jiao Tong University |
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Project Background：
Glass Fiber reinforced polymer (GFRP) has gained significant popularity in the domains of civil engineering, aerospace, and harbor engineering owing to its high specific strength, specific modulus, excellent corrosion and fatigue resistance, and low carbon emissions. However, despite these advantages, the application of GFRP bars in practical construction projects remains limited. This can be attributed to several factors, including the poor fire resistance of GFRP, incomplete investigation of its creep properties, and the limited availability of long-term design methods for GFRP reinforced concrete structures. It is imperative to address these challenges to promote the wider utilization of GFRP bars and associated
Outcomes:
PATENT 1: Modification of vinyl ester resin and preparation method thereof (filed)
Glass Fiber reinforced polymer (GFRP) has gained significant popularity in the domains of civil engineering, aerospace, and harbor engineering owing to its high specific strength, specific modulus, excellent corrosion and fatigue resistance, and low carbon emissions. However, despite these advantages, the application of GFRP bars in practical construction projects remains limited. This can be attributed to several factors, including the poor fire resistance of GFRP, incomplete investigation of its creep properties, and the limited availability of long-term design methods for GFRP reinforced concrete structures. It is imperative to address these challenges to promote the wider utilization of GFRP bars and associated
Aims & Goals:
1. To propose a novel technology for improving the fire resistance of GFRP reinforcement based on the degradation law of its tensile strength at high temperatures;
2. To explore the degradation behavior of GFRP reinforced concrete components under fire conditions and establish a performance-based fire resistance design method;
3. To propose a technology for improving the creep performance of GFRP based on the influence law of its creep fracture performance.
Outcomes:
PATENT 1: Modification of vinyl ester resin and preparation method thereof (filed)