International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 10 | Oct 2024
p-ISSN: 2395-0072
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Performance Investigation of Carbon Fiber Reinforced Polymer Cable Stayed Bridge Vishal Patil1, Dr. Chandrakant Pol2 1Student, Dept. of Applied Mechanics, Engineering, Walchand College of Engineering, Sangli,
Maharashtra, India
2Assistant Professor, Dept. of Applied Mechanics, Engineering, Walchand College of Engineering, Sangli,
Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------their quick and easy building process; and 4) the bridge’s Abstract: The innovative use of Carbon Fiber Reinforced
components’ comparatively small sizes. The bridge’s deck is provided with support by carbon fiber reinforced polymer (CFRP) cables. Because of its distinctive characteristics, carbon fiber-reinforced polymer (CFRP) cables are being considered growing in popularity for use in long-span cablestayed bridges. A composite material is carbon fiberreinforced polymer. Composite material is made up of two or more different materials bonded together. Pitch-based carbon fibers and epoxy resin are combined to create carbon fiber reinforced polymer, or CFRP. 65 percent of the volume is made up of fiber, while 35 percent is made up of resin.[1]. The cable profile was employed in the cable stayed bridge’s construction to support the deck. Generally, it is Harp pattern, Fan pattern and Semi-Harp pattern. This cable profiles are important while considering lateral load. Reinforced with Carbon Fiber Instead of using steel cables as a stay cable to hold the bridge deck, polymer cable is a sophisticated composite material. Because of its excellent fatigue resistance, low weight, great strength, and lack of corrosion. The material specifications of Carbon Fiber Reinforced Polymer (CFRP) cables vary significantly due to the production process employed by different manufacturers. As compared to steel cable, the tensile strength is higher. A carbon fiber reinforced polymer cable’s temperate deformation is just 1/20 that of steel cables. The unit weight is 1/5 that of steel cable. Finite element analysis was then used to examine their structural performance, both in a static and dynamic state. A model for the study and design of the static and dynamic properties of a long span cable stayed bridge using carbon fiber reinforced polymer (CFRP) cables is established using MIDAS Civil. Cable stayed bridge models consist of main span 600 m with H shaped pylon. Fan type cable profile considered having 21 number of cables. For vibration, it can be found that damping increases with vibration amplitude and this is more obvious for steel cable than Carbon Fiber Reinforced Polymer (CFRP) cable. Therefore, compared to steel cables, carbon fiber reinforced polymer (CFRP) cables have a lower vibration amplitude. CFRP cables perform better than steel cables in a few critical mechanical domains, such as creep and relaxation. These flexible constructions’ dynamic and aerodynamic responses may be significantly impacted by the introduction of Carbon Fiber Reinforced Polymer (CFRP) cables.
Polymer (CFRP) materials in cable-stayed bridge construction presents a promising alternative to traditional steel cables, offering significant benefits in terms of strength-to-weight ratio, corrosion resistance, and long-term durability. This study investigates the performance characteristics of CFRP cable-stayed bridges through a comprehensive analysis encompassing material properties, structural behavior, and long-term performance under various loading conditions. A series of numerical simulations and experimental tests were conducted to evaluate the mechanical properties and performance metrics of CFRP cables. The research focuses on critical aspects such as tensile strength, fatigue resistance, and the impact of environmental factors on material degradation. The study also includes a comparative analysis with traditional steel cables, highlighting the advantages and potential challenges associated with the adoption of CFRP in bridge engineering. The results demonstrate that CFRP cables exhibit superior performance in terms of weight reduction and resistance to environmental corrosion, which can significantly enhance the lifespan and reduce the maintenance costs of cable-stayed bridges. However, the study also identifies potential challenges, including higher initial material costs and the need for specialized installation techniques. Overall, this research underscores the viability of CFRP as a sustainable and efficient material for modern cable-stayed bridges, providing valuable insights for engineers and decisionmakers in the field of bridge construction and maintenance.
Key Words: Carbon fiber reinforced polymer, cable stayed bridge, CFC cable, cable configuration, Unknown load Factor
1.INTRODUCTION Cable stayed bridges are common types of bridge in which bridge deck is sup- ported by the cables. Usually, such cables are of steel which is having group of strands the reason of Modern cable-stayed bridges are very popular among bridges for four reasons: 1) their visually pleasing design; 2) their efficient and complete use of structural materials; 3)
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