Retrofitting Of Balance Cantilever Narmada River 1st Bridge Through Slab, Pier Cap And Bearing Replacement

• Author(s):

  Chintan Patel | Javal Patel | Vinod S. Patel

• Keywords:

  Bridge Retrofitting, Balanced Cantilever Bridge, Slab Replacement, Bearing Replacement, Pier Cap Rehabilitation, MIDAS Civil, Seismic Analysis, Structural Strengthening.

• Abstract:

  The Present Study Deals With The Retrofitting And Rehabilitation Of The First Balanced Cantilever Bridge Over The Narmada River Through Slab Replacement, Pier Cap Strengthening, And Bearing Replacement. Due To Aging, Increased Traffic Loading, And Environmental Effects, The Existing Bridge Components Showed Deterioration Affecting Structural Performance And Serviceability. To Restore The Bridge Capacity And Extend Its Service Life, A Detailed Structural Assessment And Retrofitting Methodology Were Carried Out. The Bridge Consists Of A Total Length Of 1360 M With 14 Spans Of 100 M Each. Structural Analysis Was Performed Using MIDAS Civil Software Considering Dead Load, Live Load, Wind Load, Braking Load, Temperature Effects, And Seismic Forces As Per Relevant IRC Provisions. Dynamic Analysis Using The Response Spectrum Method Was Also Conducted To Evaluate Seismic Behavior. The Proposed Retrofit Method Involved Replacement Of The Existing Slab And Bearings While Retaining The Foundation And Pier System. The Results Showed A Reduction Of Approximately 1000 Tons In Superstructure Dead Load, Which Significantly Reduced The Load On The Substructure And Improved Overall Bridge Performance. The Study Concludes That The Proposed Retrofitting Approach Is Economical, Safe, And Effective Compared To Complete Bridge Reconstruction, While Ensuring Enhanced Durability And Extended Service Life.

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Other Details

• Paper id:

  IJSARTV12I4105035

• Published in:

  Volume: 12 Issue: 4 April 2026

• Publication Date:

  2026-04-16

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