Specialty engineering firm FRP experts Materials systems supplier Applicator and Architectural Finishes Who is Composites Advantage, LLC ?
FRP is a strengthening tool Conventional strengthening tools Concrete enlargement (shotcrete), underpinning, post tensioning, steel plates Fiber-reinforced polymers (FRP) A composite system (carbon/glass fabric + epoxy matrix) used to augment another composite system (concrete + rebar) Formats: “wrap”, prefab: dowel bars, plates, strips FRP provides on the outside what concrete is missing inside (e.g. hoop steel for columns).
Strengthening applications Change of use…increased live/wheel loads Installation of heavy machinery expansion of existing facilities Construction or design defects Code changes…new design criteria legislature driven Seismic retrofit Blast protection Deterioration remediation For concrete columns, beams, slabs, walls
Fiber composites Fabric can be custom cut at project site Easy to handle and install
Fabric Manufacturing Spools of fibers are combined into fabrics and pre-cured strips
Key FRP concepts Confinement Columns Think of a weightlifter’s waist belt FRP keeps column rebar from buckling Added tensile strength Underside of beams Shear strength Walls Adds in and out-of-plane strength
History of FRP for construction Mid 1980s EU and Japan begin FRP research and development Late 80s, early 90s Funding for US universities begins Leverage technology developed during the Cold War FHWA, CalTrans*, DARPA UCSD, UofM/Rolla, Penn State, Brown University, North Carolina State, University of Arizona
Composites are now accepted for retrofit and rehabilitation
20 years of history, over 20,000 projects completed worldwide
ICC, LARR, ACI, Caltrans, FHWA, cities, DSA, and OSHPD* have accepted for a variety of projects
COMPOSITE OVERLAYS FOR BLAST RETROFITS
Blast test results Unprotected column severely deformed from C4 blast Column wrapped in carbon fiber holds up in same blast
FRP’s benefits Engineering benefits Very high tensile strength (10-14x steel) but also ductile (complements concrete’s properties) Very corrosion resistant Architectural and construction benefits Easier to apply/install Lightweight, thin, unnoticeable Minimal structure/tenant intrusion & disruption Economic benefits Low installation costs Great, tangible, ROI FRP works. It’s been reviewed, validated, approved, documented and incorporated worldwide.
Building owner benefits Shorter projects Lower cost Safe and effective Much less tenant disruption Industry/Agency/Peer acceptance
Installation expertise Proper usage (structural engineering) Safety & insurance (look for qualified contractors) Installation environment (doing your homework) Demolition Surface preparation Proper installation techniques Keen attention to detail QA/QC (core competence) Samples collection and mgt. Finishing (virtually any finish can be applied)
FRP benefit: ROI Case Study $18.5M D/B Renovation Project: “BEQ-26”
San Diego based Navy barracks underwent renovation, including seismic.
Original plan called for shotcrete for strengthening.
Through collaborative efforts, FRP was VE’d in its place
Navy saved $500,000 and 9months (roughly a 36 mo prjt)
Project was 1 of 21 nominees for the 2002 Charles Pankow Award for Innovation
Next steps Composites Advantage, LLC. can meet with you or your SE/architect to discuss FRP’s benefits in more detail VE analysis Free consultation Information is available in CD or print form For projects already spec’d or on the street, we are ready to do the work
Thank You Composites Advantage, LLC Steve Behrens 24031 El Toro Road Suite 304 Laguna Hills, California 92653 714-926-8056 office/mobile Email: firstname.lastname@example.org