Retrofitting of Existing Structures

Retrofitting Expertise

Soil and Structure Consulting specializes in the design and implementation of retrofit solutions for reinforced concrete structures, masonry buildings, bridges, and steel roof trusses. Retrofitting involves engineered interventions aimed at restoring or enhancing a structure’s load-bearing capacity, safety, and service life. Widely adopted international retrofit techniques include fiber-reinforced polymer (FRP) systems, post-tensioning, grout injection, concrete jacketing, concrete stitching, and ferrocement overlays, among others.

Criteria for Selecting an Appropriate Retrofitting Method

The choice of retrofitting strategy is based on a comprehensive evaluation of several key factors:

  • Nature, extent, and location of structural damage
  • Structural type and functional requirements
  • Cost-effectiveness of the intervention
  • Criticality and importance of the structure
  • Availability of:
    • Suitable technology and equipment
    • Approved construction materials
    • Experienced engineering and skilled labor
  • Project duration, feasibility, and occupancy constraints during construction

Standard Retrofitting Process

A systematic and performance-based approach is followed to ensure safe and effective retrofitting:

  1. Identification and documentation of structural deficiencies and damage
  2. Detailed structural assessment and performance evaluation of the existing facility
  3. Selection of suitable retrofit technique and preparation of the retrofit design scheme
  4. Performance verification of the proposed retrofit system using analytical or numerical methods
  5. On-site implementation, supervision, and quality control of the retrofit works