Beam and Girder Repair

Glass Fiber Reinforced Polymer (GFRP) or Carbon FRP offer economical and efficient solutions for strengthening concrete beams for flexure and shear. The technique works for strengthening concrete, steel, timber and glulam beams.

Thin sheets of FRP with a thickness of approximately 0.05 inch (1.3 mm) can be applied similar to wallpaper to strengthen the beam. These materials cure within a day and reach a tensile strength three times that of steel. QuakeWrap engineers will determine the number and orientation of fibers in each layer of the FRP fabric and will provide sealed engineering drawings for such repairs.

Features & Benefits:

Among the advantages of GFRP and CFRP are:

  • Increases flexural strength for both positive and negative moment regions
  • Increases shear strength
  • Increases stiffness at service loads
  • Reduces crack widths for enhanced durability and corrosion resistance
  • Delays future corrosion rate by reducing moisture penetration into beams
  • No reduction in overhead clearance (e.g. in parking garages)
  • Lower cost than conventional methods


  • Art Gallery, FRP Retrofit of Reinforced Concrete Beams in Historic Building, Phoenix, AZ
  • Challenger Middle School, FRP Repair of Bridge Beams, Tucson, AZ
  • BMC Parking Structure, FRP Strengthening of Corbels in Parking Structure, Mesa, AZ
  • City Court Garage, FRP Repair of Reinforced Concrete Beams in Parking Structure, Tucson, AZ
  • Coolidge High School Gymnasium, FRP Strengthening of Glulam Beams in School Gym, Coolidge, AZ
  • Dallas Roberts Elementary, FRP Strengthening of Prestressed Concrete Beams in School Gym, Dallas, TX
  • Dunes Condominiums, FRP Retrofit of Wooden Beams in Condominium Building, Charlevoix, MI
  • FRP Strengthening of prestressed DT beams in parking garage, Phoenix, AZ
  • High School Gym Snowflake, FRP Repair of Wooden Beams in High School Gymnasium, Snowflake, AZ
  • Kinder Morgan Plant Glulam Beam, Carbon FRP Repair of Glulam Beam Kinder Morgan Plant, Tampa, FL
  • Martini Park Parking Garage, Carbon FRP Repair of Double Tee Beams in Parking Structure, Scottsdale, AZ
  • Oceans One Condominium, FRP Repair of Concrete Beams in Condominium Building, Daytona, FL
  • Panorama Condominiums, FRP Repair of Prestressed Concrete Beams in Parking Structure, Las Vegas, NV
  • Phoenician Resort, FRP Retrofit of Concrete Frames in Parking Structure, Scottsdale, AZ
  • Tucson Police Station, FRP Repair of Wooden Beams in Warehouse Facility, Tucson, AZ