A new method for application of pre-stressed FRP laminates for strengthening of concrete structures
Conference contribution, 2016

Using bonded fiber reinforced polymer (FRP) laminates for strengthening and repair of structural members has been proven to be an effective and economic method. High strength and stiffness, light weight and good fatigue and durability properties of FRP composites together with advantages offered by adhesive bonding have made FRP bonding a suitable alternative for traditional strengthening and repair techniques. It has also been recognized that pre-stressing the FRP laminates prior to bonding would bring additional advantages such as reduced crack widths, postponing the yielding in tensile reinforcement, increasing the load bearing capacity and saving reinforcement material. Using pre-stressed laminates, however, is associated with very high interfacial stresses in the bond line at the laminate ends, which necessitates the use of mechanical anchors. This paper presents a new method and a device for applying pre-stressed FRP laminates to flexural structural members without the need for mechanical anchorage of the laminates.

Repair

Concrete

FRP

Pre-stressing

Anchorage

Strengthening

Bonding

Author

Reza Haghani Dogaheh

Chalmers, Civil and Environmental Engineering, Structural Engineering

Mohammad Al-Emrani

Chalmers, Civil and Environmental Engineering, Structural Engineering

19th IABSE Congress Stockholm 2016

1556-1563

Subject Categories

Materials Engineering

ISBN

9783857481444

More information

Created

10/8/2017