Fyfe System Projects and Case Studies

Fyfe®'s Tyfo® FRP systems - Advanced composites for structural strengthening - have been used for the rehabilitation of a range of applications covering many industries. Here you will find details of many of our projects supported by detailed case studies. 

5959 Century Blvd Repairing Old Foundations

5959 W. Century Blvd, a 13-story non-ductile concrete building originally built in 1966, underwent conversion into a dual-branded select service hotel with rooftop amenities including a swimming pool. As part of the conversion, a full seismic retrofit is performed that includes adding new concrete shear walls and foundations and wrapping the interior columns with fiber-reinforced polymer (FRP).

Palomar College Parking Structure Seismic Rehab

STRUCTURAL STRENGTHENING, TYFO® SYSTEMOVERVIEWFyfe Company was successful in designing the carbon fiber-reinforced polymer (CFRP) materials for a comprehensive seismic rehabilitation of an existing parking structure. The Palomar Community College District procured a property to expand its campus and quickly initiated design activities due to a proposed change in occupancy from commercial office building to an…

Northwest Doors Shear Transfer

Northwest Doors purchased two adjoining buildings within the same commercial building complex that did not have direct access to one another. The buildings were divided by existing precasted tilt-up panels. To gain access between buildings, two 20-ft. by 21-ft. openings were formed. By creating these openings, panel to slab steel connections were lost, causing a deficiency in in-plane sliding shear capacity.

Laguardia Delta Terminal

The redesign of the arrivals deck at Delta Airlines Terminal C required an upgrade to the loading of the beams and girders.

BYU Hawaii Student Housing Phase 1B

Brigham Young University’s Hawaii campus began construction in 2012 for its major expansion of the North Shore campus as it prepares to double its enrollment to about 5,000 students. The new renovation included modifications to 11 buildings, including two existing dormitories.

Allstate Tower Wrap Repairing Old Foundations

As part of a rehabilitation of a series of utility towers, the structural engineer recommended repairs to the foundations. The concrete footing needed to be excavated, repaired and backfilled. Morris and Ritchie Engineers called for a Tyfo® fiber-reinforced polymer (FRP) system to wrap the concrete after it was repaired.

500 Airport Structural And Seismic Office Building Upgrades

500 Airport is an office building owned and operated by one of the country’s most high-tech manufacturers of government contracting software. The building consists of four stories and 45 individual offices along with a fully operational kitchen and a covered parking structure.

Mission Hospital Structural Strengthening

The short captive columns were wrapped with the Tyfo® Fibrwrap® system to ensure a flexural controlled performance. In addition to strengthening columns, collector beams were strengthened using our Tyfo® SCH-41 system and Tyfo® composite anchors to provide a better path for transferring tension forces.

Columbia Square Structural Strengthening

The Tyfo® SCH-41 system (unidirectional carbon composite) was selected to provide additional shear and flexural reinforcement to the structural members as required by the engineer-of-record. The Tyfo® Fibrwrap® system was able to provide a cost-efficient and innovative solution compared to conventional construction methods.

Consumer Financial Protection Bureau Blast Strengthening

Consumer Financial Protection Bureau building has started a tenant fit out of an existing building located next to the White House in Washington D.C. The super structure requires a blast strengthening component due to new terror concerns. In addition, the mid century modern aesthetics of the building carries the exposed column finish up the outside of the building from the first floor. The exposed columns located on the first level required blast strengthening using fiber-reinforced polymer (FRP) while maintaining the current visual aesthetic.

Kresge Centennial Hall

All structural members were strengthened to the demands specified in a timely manner and with minimal increase in size. Ultimately, the Tyfo® systems were able to provide a cost-efficient and minimal impact alternative solution to conventional construction methods.

Northwest Crossings Structural Strengthening

This unique application of the Tyfo® system, allowed for the deficient CMU walls to receive the additional strengthening required without changing the architecture of the structure.

Waikiki Skybar Structural Strengthening

The Engineer of Record provided the demand values and Fyfe Engineering designed the Tyfo® SCH-41 system to strengthen these structural walls and regain the loss shear and moment capacities. The design of the Tyfo® SCH composite anchors ensured continuous tension transfer of forces through the slab. The Tyfo® SCH-41 system installed on the topside of the slab provided the required negative flexural capacity for the pre-cast planks and beams.

San Diego City College Buildings A, D And T Renovations Multiple Building Rehabilitation

The Tyfo® system was designed by Fyfe Co. and approved by the DSA and the engineer of record, Hope-Amundson. The fiber-reinforced polymer (FRP) materials have been approved by DSA on previous installations at SDCCD. In this instance,Tyfo® SCH-41 FRP materials were designed and installed to provide structural reinforcement of columns, beams, joists and slabs. While advanced FRP composites have gained wide acceptance with national and international codes, principally ACI-440.2R-08, there are still various structural rehabilitation options available to the structural engineer when reviewing their analysis and design activities.

University Of California, Davis - Olson Hall

Olson Hall was one out of nine buildings requiring a seismic upgrade according to Phase 5 of the UC Seismic Corrections Plan. Fyfe Company’s pre-qualified certified applicator, Fibrwrap Construction, was awarded the design-build project. The project documents specified existing concrete columns and diaphragms to be strengthened with the addition of fiber-reinforced polymers (FRP). The project drawings also included specific FRP detailing at obstructing concrete walls and depressions in the existing terrazzo flooring.

USC – COL And URL Strengthening Structural Improvements To Residence Halls

University of Southern California has been on the forefront of using advanced and cost-effective solutions to improve it’s infrastructure. USC Capital Construction Development worked with Fyfe to complete a seismic retrofit of the College Residence Hall (COL) and the University Residence Hall (URH). Both are three stories tall with a total of approximately 30,400 sq. ft. (15,201 sq. ft. each).

USC Raulston Memorial Research Building

The University of Southern California is completely renovating a 1952 concrete frame, brick facade building to construct a new research facility. The building is comprised of five floors, plus basement and a mechanical penthouse with a total area of 35,227 gross square feet. The project includes seismic, fire/life safety/disabled access upgrades, the installation of a fiber optic connection to the USC Norris Cancer Hospital, and the construction of a new adjoining building to house the MRI’s. FYFE Company was contacted to provide additional structural and seismic strengthening to several beams, columns and walls.

GMOL Project Dory Re-Tool Of General Mills’ Food Processing Plant

General Mills closed their Vineland, New Jersey plant in 2017 and moved a soup line to their Hannibal, Missouri plant. To accommodate the new soup line, numerous modifications, additions and relocations were required in the Hannibal plant. Work included removal of the salsa production line, a new freezer, parts storage and warehouse expansions and an office area to replace the existing displaced areas. The work included civil, structural and architectural modifications as well as the addition of new packaging equipment, process piping, mechanical, utilities and electrical modifications to support the new line.

Structural Strengthening of Elevated Slab Due to Damaged Reinforcing Steel

The project included the installation of 50 conduits through an elevated floor slab, requiring the contractor to core through the elevated floor slab. Core sizes ranged in diameter from 3 to 10 inches. During the coring process, grade 60 #4 reinforcing steel was damaged at 43 of the coring locations. The 50 cores would significantly reduce the overall strength of the elevated floor slab, requiring strengthening of the slab.

St. Paul’s Hospital Structural Strengthening

The Tyfo® SCH-41 system (unidirectional carbon fibers) was selected to provide the reinforcement needed on the steel deficient slab. Due to many physical obstacles in the project, close on-site interaction with Fibrwrap Construction, the certified applicator, was crucial. Fibrwrap Construction was able to communicate effectively with Fyfe to provide the steel equivalent reinforcement and work around the obstacles without removal of any existing equipment.

Century Plaza Hotel Seismic Retrofit and Rehabilitation

The Century Plaza Hotel was marked for demolition in 2008. The National Trust for Historic Preservation added to its list of endangered historic locations in 2009 in 2010, plans to renovate the building, including a seismic retrofit, were set in motion. The Tyfo® system was a major part of the retrofit of the main building. The project, consisting of column, beam and slab strengthening, started in October 2017 and was completed in spring 2019. As with most seismic retrofits, the Tyfo® systems was only part of the solution. There was additional conventional steel added along with buckling restrained braced frames.

YWCA On Beatty Street Structural Upgrades and Tying In Adjacent Structures

The YWCA Hotel in Vancouver, British Columbia was in the process of expanding its footprint to incorporate a new tower directly adjacent to the existing structure. The engineer of record, who was to oversee these expansions, had the challenge of not only structurally upgrading the existing tower to handle increased loading but to also tie the existing and new structures together. After careful consideration of multiple options to achieve these goals, the EOR decided that using the Tyfo® fiber-reinforced polymer (FRP) system was the most sound and cost effective method to meet all the hotel’s needs.

Tower Of Hope Columns and Shear Walls Remodel

Tower of Hope, a 13-story structure built in 1968 and located in Garden Grove, California underwent a voluntary seismic rehabilitation and full remodel. The remodeled Tower of Hope will provide housing to the Christ Cathedral Catholic Corp. upon its completion in 2016. Fyfe Company was contacted to design an advanced composite system that would strengthen the existing columns and shear walls for flexure and shear.

Gaetz Ave Shear Strengthening

Fibrwrap Construction provided a complete fiber-reinforced polymer (FRP) shear reinforcement solution required at the Gaetz Avenue and 60th St. overpass in the City of Red Deer, Alberta. Fyfe Co LLC certified applicators, Fibrwrap Construction, installed the Tyfo® SCH system for shear strengthening within the critical shear zone at abutments of the bridge girders due to load increasing capacity requirements. The crew installed the high strength, low-profile system to the existing girders with minimal site impact. This installation provided a time and cost-efficient solution to ensure the bridge can continue to safely perform for the community of Red Deer.

Highway 616 Over Highway 2 FRP Repair

The Fyfe® design was based on replacing the equivalent tensile capacities of the damaged FRP system as well as adding additional strength to areas that were unreinforced in the original retrofit. Without the need for heavy equipment, the highway could stay functional by only blocking off a single lane at a time to perform the extensive clean up of fire damaged material and soot that covered most of the structure.

Greenway Bridge End Rehabilitation

WIDOT required shear reinforcement for a bridge in Monroe, Wisconsin. The bridge has been in service for many years and required concrete repairs and fiber reinforcement to supplement the loss in reinforcement steel.

California Bridge Column Shear Enhancement

Three Caltrans-owned bridge overpasses in central California were found to have columns deficient in shear capacity. As an innovative alternate to steel jacketing, the prequalified Tyfo® system pioneered the use of fiber reinforced polymers for wrapping bridge columns since the late 1980s.

Arkansas I-440 Bridge Rehabilitation

The Arkansas I-440 bridge spanning the Arkansas River was experiencing repeated cracking throughout several concrete piers. Traditional repair methods often involve short-term crack injections that require additional maintenance in the near future, leading to substantial additional costs in the following years.

Roosevelt – Kipapa Stream Bridge Structural Strengthening

The Tyfo® system was used for the design by the DOT under section 577.02 calling for the fiber-reinforced polymer (FRP) system to be carbon fiber and conform to ACI 440.2R, Guide for the Design and Construction of Externally Bonded FRP System for Strengthening Concrete Structures and the AASHTO 2012 Guide Specification for Design of Bonded FRP System for Repair and Strengthening of Concrete Bridge Elements.

Route 8 Naugatuck River Bridge Strengthening Pier Cap Shear Reinforcement

Five pier caps required shear reinforcement for a total of 5,500 square feet of carbon fiber. In addition to performing the installation on the pier caps, Fyfe engineering was required to send a certified material representative onsite to oversee the ASTM D4541 pull off adhesion testing on site.

Milwaukee South First Street Bridge Rehab

In order to provide protection from specified environmental exposure for the desired extended service life, two layers of the Tyfo® SEH 51A system were applied to 64 bridge piles in a full coverage wrap scheme. Because the bridge piles in question are partially submerged in the Kinnickinnic River; the Tyfo® SW-1S water resistant epoxy was used in the saturation and application of the Tyfo® SEH 51A fabric.

Markland Bridge Phase 2 Beam Repair Using FRP

Fyfe worked with the Army Corps of Engineers on a bridge project in Warsaw, Kentucky. The Army Corps was assigned to deal with repairs needed on this bridge’s AASHTO beams due to water drainage from the bridge causing spalling and corrosion.

JFK Bridge Rehabilitation Over Risley Channel

The number of layers required to supplement the flexural capacity lost by the corroded steel varied per location. Beyond this, one layer U-wraps were installed to provide a protective membrane to the AASHTO girders at each repaired location. At the end of the project, the use of fiberwrap materials was noted as a large cost-savings to the owner that allowed the bridge to remain in service during repairs and immediately increased the bridge’s lifespan.

I-84 Bridge Overpass

As a result, some ductility was required at the plastic hinge locations at the top and bottom of each column for a total of five-foot, zero inches in both locations. The Tyfo® system was utilized along the full column height, allowing for a uniform aesthetic finish.

Indiana Dot 40314 Bridge Beam and Column Wrapping

Fyfe Co. worked with, Hydratech, a certified applicator in Ohio, who installed the Tyfo® SEH-51A glass fiber on a project for the Indiana Department of Transportation (DOT). Tyfo® RR, was used after the FRP installation as an aesthetic finish as well as a flame and smoke protection.

Triborough Bridge and Tunnel Authority

The Triborough Bridge and Tunnel Authority required the repair of the existing Robert F. Kennedy Bridge concrete super structure due to concrete spalling and deterioration.

Grove Isle Bridge Rehabiliation

The bulk of the repairs involved reinforcement treatment and concrete patching to the underside of the bridge deck slab units. In lieu of conventional hand-patching techniques at the underside of the concrete deck, a “form and pump” method was utilized.

Intermountain Power Plant

Intermountain Power (IMP) has been a user of carbon fiber-reinforced polymer (CFRP) for strengthening of their circulating cooling water systems (CW) for over 10 years.

Beacon Street Pipeline Rehabilitation

In 1870, a new 48-inch cast iron water main was installed in the Brookline area of Boston to provide additional potable water supply to residents. Almost 150 years later, this pipeline today now supplies over 21 million gallons (or approximately 15 percent of the total daily water supply) per day to the region. In 2000, the Massachusetts Water Resources Authority (MWRA) performed maintenance on the pipeline and relined it with a non-structural cement mortar lining.

66-Inch I-25 Steel Pipeline Rehabilitation

PIPELINE REHABILITATION, TYFO® SYSTEMOVERVIEWDenver Water experienced a catastrophic failure in February 2008 when a section of a 66-inch steel pipeline that conveys water to the northern part of the City failed under I-25 due to a sudden surge from a pump failure. To put the line quickly back into service and rebuild the roadway, Denver…

A120-Inch Dominion Pipe Rehabilitation

The Tyfo® system was used as a liner to provide corrosion protection and nominal hoop tension strength on a 120-inch diameter steel pipe at a nuclear power plant in Yorktown, Virginia.
The 120-inch diameter steel pipe at this power plant was severely rusted due to the surrounding corrosive environment. A repair solution was needed that could not only withstand the harsh environment but could also be installed with minimal shut down time at the plant.

US Army Corp of Engineers/Zoar Levee 36-Inch Box Culvert Joint Strengthening

Site preparation and bypass pumping of the creek water and storm flows was provided by the prime contractor, Massillon Stone Company, which utilized an 8-inch dry prime pump and 8-inch irrigation piping. The pumping system had to overcome a 150 vf levee wall to force the water from the base of the levee wall to the top of the levee for discharge. The trenchless repair was performed by entering the line and hand applying the Tyfo® Fibrwrap® CFRP system.

Penstock Rehabilitation Using CFRP

Once Mississippi River Power approved the design, installation of the FRP was completed by Fyfe Company’s certified FRP applicator, Fibrwrap Construction. Prior to the FRP application, Fibrwrap Construction hydroblasted all concrete surfaces receiving FRP to achieve the minimum ICRI concrete surface profile (CSP) level 3, defined as a uniform exposure of the core’s coarse aggregate such that the surface will be void of latent materials. The materials were then applied with an epoxy using the wet layup method. These materials included Tyfo® SEH 51A (GFRP) over all exposed steel surfaces and Tyfo® SCH 41-2X (CFRP) in all other areas.

Mississippi River Power Corporation Pipe Rehab

Fibrwrap overcame significant leakage issues and installed a series of CFRP layers in the longitudinal and hoop direction to take the place of removed steel pipe. As an added precaution in the transition structure that had a unique geometry, the Tyfo® system was anchored into the concrete using carbon fiber anchors installed on a square grid. The repair provides a standalone, fully structural pipe enhancement.

Nuclear Power Plant Pipe Rehabilitation

The fiber wrap design was standalone throughout the straight pipe segments and designed as a composite section at the bends and at the supports; this allowed for the remaining steel section to provide the stiffness required in resisting thrust forces at those locations. Once the fiber installation was completed, compression rings were applied at the fiber terminations for improved detailing and to prevent shear slipping due to longitudinal forces.

Fibrwrap Helps Strengthen a Las Vegas Power Plant

The scope of work included conducting the internal surface preparation by media blasting and internal installation of the Tyfo® carbon fiber material on 440ft of 36-inch diameter steel pipe and 310 ft of 32-inch diameter steel pipe including numerous eight tees, five 90° elbows, two reducers and one dead head.

Refinery Flare Line Repair

Fyfe/Fibrwrap worked closely with the client to develop a solution that would both satisfy the client’s process safety requirements, and be cost effective to install. Ultimately, a high temperature Tyfo® system was proposed that met the client’s needs and specifications.

SJRA – Lake Houston Pump Station #2 Effluent Pipe Lines Rehabilitation

The scope of work included strengthening segments on each of the three effluent pipe lines, including conducting the required surface preparation, end detailing, fiber installation, finish coat installation and conducting all the required quality control measures. The pipe length of each repaired section was 13, 18 and 27 lineal feet.

66-Inch, I-270 PCCP Pipeline Rehabilitation

Fibrwrap Construction installed the Tyfo® SCH-41 2X system (unidirectional carbon fiber) both in the circumferential and longitudinal directions. The materials were designed as a standalone repair to withstand operating and transient pressures as well as gravity loads.

Large Diameter PCCP Rehabilitation

Fibrwrap Construction was selected to perform the rehabilitation work. The scope of work included strengthening nine (10) segments of PCCP, including conducting the required surface preparation, end detailing, fiber installation, finish coat installation and all the required quality control measures. Both the return and supply cooling water lines had segments which required structural strengthening. The access limitations only allowed for man entry and ventilation on each end of a the two 1,200-ft long segments of pipe.

Intermountain Power Plant

Intermountain Power (IMP) has been a user of carbon fiber-reinforced polymer (CFRP) for strengthening of their circulating cooling water systems (CW) for over 10 years.

Mississippi River Power Corporation Pipe Rehab

Fibrwrap overcame significant leakage issues and installed a series of CFRP layers in the longitudinal and hoop direction to take the place of removed steel pipe. As an added precaution in the transition structure that had a unique geometry, the Tyfo® system was anchored into the concrete using carbon fiber anchors installed on a square grid. The repair provides a standalone, fully structural pipe enhancement.

Nuclear Power Plant Pipe Rehabilitation

The fiber wrap design was standalone throughout the straight pipe segments and designed as a composite section at the bends and at the supports; this allowed for the remaining steel section to provide the stiffness required in resisting thrust forces at those locations. Once the fiber installation was completed, compression rings were applied at the fiber terminations for improved detailing and to prevent shear slipping due to longitudinal forces.

Fibrwrap Helps Strengthen a Las Vegas Power Plant

The scope of work included conducting the internal surface preparation by media blasting and internal installation of the Tyfo® carbon fiber material on 440ft of 36-inch diameter steel pipe and 310 ft of 32-inch diameter steel pipe including numerous eight tees, five 90° elbows, two reducers and one dead head.

Refinery Flare Line Repair

Fyfe/Fibrwrap worked closely with the client to develop a solution that would both satisfy the client’s process safety requirements, and be cost effective to install. Ultimately, a high temperature Tyfo® system was proposed that met the client’s needs and specifications.

SJRA – Lake Houston Pump Station #2 Effluent Pipe Lines Rehabilitation

The scope of work included strengthening segments on each of the three effluent pipe lines, including conducting the required surface preparation, end detailing, fiber installation, finish coat installation and conducting all the required quality control measures. The pipe length of each repaired section was 13, 18 and 27 lineal feet.

Ocean Sciences Tanks Strengthening For New Openings

Fibrwrap Installations reinforced the bottom six-feet of the two tanks with 4 layers of Tyfo SEH-51A System. An additional two-layers (16-inches wide), was then applied around the openings extending 12-inches beyond the opening edges.

Water Tank Strengthening Gear Island WTP

Five layers of Tyfo SEH® 51A was applied in a band around the top of the tank walls to provide confinement and prevent flexing. The Tyfo® was painted with Tyfo® A Acrylic Finish Coat to protect the Fibrwrap from UV and blend the retrofit area to the rest of the tank.

Prilling Tower Repairing Deteriorated Concrete Towers

Concrete repair work was required and the Tyfo® Fibrwrap® Systems were utilized to supplement the corroded longitudinal and transverse steel reinforcement. Fyfe worked with the engineer of record to detail a carbon fiber strengthening system that would not only make up for the loss of structural capacity due to the section loss in the reinforcing steel, but also provide additional strength and protection to the structures moving forward.

Fort Mason Municipal Pier Strengthening

A United States Army post for more than 100 years, Fort Mason is now a National Historic Landmark and part of the Golden Gate National Recreation area in San Francisco. The marine environment had corroded the concrete pier serving the area, with the rebar on the underside of the deck suffering from corrosion. Approximately 250 4-foot diameter cassions were found to be in need of additional confinement and shear strength to resist anticipated seismic loads.

Nassco Berths 3 & 4 Pier Strengthening

The 90 ton gantry crane in the photo above, is being supported by a 50 ton rated pier. Although the crane is not typically fully loaded, the pier experienced some overloading from time-to-time.
The beams directly below the crane rails required both shear and flexural enhancement to accommodate the service loads. Fibrwrap Construction provided a design build proposal based on the engineers performance requirements.

Repair and Retrofit of Corroded Beams, Slabs & Columns

An upscale restaurant and adjoining apartment complex, which was in poor condition structurally and aesthetically mostly due to exposure to marine weather conditions was in dire need of structural rehabilitation. The restaurant actually sets out into the ocean on concrete pilings and ocean surf is continually surging up against the bottom of the restaurant’s floor. The city required a permanent repair of corrosion damage to pilings, beams and slab or the restaurant would have to be demolished.