Segmental Concrete Bridge Construction

Partha Pratim Roy, General Manager (Technical), ADAPT International Pvt. Ltd. Kolkata

Most Modern Bridges are Built Segmentally

Most Modern Bridges are Built Segmentally. In such bridges, the components carry loading in a configuration other than thecompleted structure. Stress during construction exceeds that of the completed structure. Early-age loading of concrete results in large deformations. Bridge engineers must keep these aspects in mind while designing segmental bridges. Major design objectives are:
  • Geometry Control During Construction (Deflection and Camber)
  • Crack Control During Construction (Stress Check)
  • Structural Safety and Stability During Construction
  • Control of Stresses in Completed Structure
  • Control of Strength of Completed Structure

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