Inspection and Strengthening Methodology of N- Type Steel Truss Bridge

Steel Foot Bridge is a Significant Infrastructure They Helps in Pedestrian Movements in Industrial Operations They are especially Useful in Factories and Plants Steel Bridges Can Be Affected by The Environment This Can be Compromise Their Safety. This Present Research Paper N- type Truss Bridges Having an Overall Span of 360 m having 12 Span, Each Span 30 m, These Span Have Concrete Foundation. This Bridge Exposed to a River and an Aggressive Environment. Perform a Structural Audit for Assess their Current Condition, In This Assessment Visual Inspection and Design and Construction Drawing Reviewed and Non-Destructive Test Includes Ultrasonic Pulse Velocity, Rebound Hammer, Dye Penetration Test Thickness Gauge and PH Scale and Cover Test Were Performed and identified Sectional Loss and Detoriation of Structure. Thus, Investigation Found Differences in Concrete Quality in Pile Caps and Piles with Areas Showing Weaker Material Some Steel Truss Part Had Slight Thinning and Surfaces Rust but The Welded Were Strong, Using This Inspection a Structural Review Was Done to Check Load Carrying Capacity and Epicenter Problem. Depend On This Context Repair Plan Was Proposed Targeting Corrosion Protection Fixing Damage Concrete and Improve Durability with Protective Statement and And Local Strengthening, Our Aim is To Regain the Strength of a Bridge Which Can Increase the Aging of Steel Foot Bridge. This Study Provides a Clear and Practical Methodology for Strengthening a Bridges.