A Study on Transient and Modal Analysis of a GFRP Bridge Deck Under the Action of Heaviest Main Battle Tank Currently Available in India (T-90S Bhishma)

To enhance the mobility of the military forces to the impregnable areas and also to provide a temporary access for rescue force to the disaster area when the existing landline of communication system is damaged or destroyed, lightweight portable bridges are very much useful. Nowadays, fiber-reinforced polymer (FRP) composite becomes an integral part of the construction industry. But for most of the cases, use of FRP is restricted in combinations of FRP and conventional materials or in retrofitting areas. The relative lightness and high strength-to-weight ratio makes it possible to enhance the portability of the bridges made by FRP only. The use of such materials for major load-bearing members is increasingly being promoted because of its superior material properties like high resistance to fatigue, corrosion free, enhanced durability, huge heat resistance, lower maintenance and life-cycle costs, etc. Present study includes the modeling and simulation analysis of FRP bridge deck slab subjected to moving load of heaviest battle tank currently available in India (T-90S Bhishma) by using ANSYS 19.2 FEA software. ANSYS 19.2 FEA software is selected to simulate the proposed design model bridge in the ANSYS Composite PrepPost (ACP). This research examines the performance of a FRP bridge deck in terms of modal and transient analysis. Glass-fiber reinforced polymer (GFRP) is being used as a primary material for this bridge deck.