FRP Retrofit & Strengthening System
FAQ’s
Why Retrofit and Strengthening?
- Increase Capacity or Change of structure purposes.
- Correct construction errors/omissions.
- Replace deteriorated materials (steel, concrete, etc. )
- Accidental damage (e.g. boat hitting underwater structure)
- Comply with new code requirements (e.g. ties for confining R/C columns)
- Blast Protection
Advantages of using FRP?
- High Tensile Strength (3-5 times stronger than Steel)
- Low Weight Corrosion Resistance & Acid Protection
- Waterproof
- Excellent Fatigue Behavior
- Speed of Construction
- Versatility
- Cost Effective
How FRP Strengthening Works?
FRP introduces new additional tension force, thus producing larger moment capacity.
FRP Confinement
Retrofitting with BMJP FRP Systems
Results showing Original Pipe vs Strengthened Pipe with 3 layers of GFRP+ BMJP 300 SR (2 layers hoops + 1 layer longitudinal) has an additional 70% of confinement strength compare than original pipe
FRP confinement can
- Increase axial capacity of columns
- Increase stiffness
- Protection against chemical, corrosion, aggressive environments
- Delay splitting failure of lap splices
- Improve the performance under seismic loading
- Blast Protection
- Enhance capacity and drift
- Allow yielding of beam reinforcement
FRP Retrofit & Strengthening System Project
Jetty, Piers, Wharves
Demolishing and reconstructing a structure was considered to be an uneconomical and time-consuming process. Hence strengthening of new and existing structures had become popular in the construction field.
For more information, check this project application
