Applications

Fyfe delivers structural strengthening solutions to a range of infrastructure and applications such as bridges, buildings, pipelines, marine structures, Industrial and power generation facilities, and silos, stacks and chimneys.

 

Building Rehabilitation & Structural Strengthening

Fyfe®’s Tyfo® FRP Systems have proven themselves to be ideal for the structural strengthening of reinforced concrete, reinforced and unreinforced masonry buildings. However, there are unique applications that have been developed for both wood and steel structural elements. Tyfo strengthens columns, walls, beams, diaphragms and connections.

Fyfe Tyfo structural Strengthening
Bridges & Transportation

Initially developed for seismic strengthening of bridge columns, the Tyfo Systems have since been used to strengthen and protect columns, piles, piers, beams, AASHTO girders, box girders, bent caps, pile or pier caps and bridge decks across the world. Our systems have undergone rigorous structural and durability testing to gain acceptance by transportation departments and ministeries world-wide.

Fyfe Tyfo Bridge Strengthening
Pipelines, Water & Wastewater

When a large-diameter pre-stressed concrete cylinder pipe (PCCP, ECP), reinforced concrete pipe (RCP), steel pipe, ductile iron, cast iron, wrought iron, FRP, or other types of pipe suffer from corrosion or another form of decay, they can experience significant structural loss. The Tyfo System strengthens structurally deficient pipes and enables them to accommodate all internal loads and all external loads.

Fyfe Tyfo Pipe Strengthening
Waterfront & Marine Structures

The corrosive nature of marine environments can severely damage waterfront structures, destroy their aesthetics, and render them unable to support the loads they were designed to carry.  Fyfe is a leader in rehabilitating and preserving existing reinforced concrete, wood, and steel structural elements that are periodically or permanently submerged in water using Tyfo Systems.

Fyfe Tyfo Pier Strengtheningf
Silos, Stacks & Chimneys

This infrastructure can often be found in harsh environments such as near the ocean and can be subjected to high levels of damaging chemicals. Silos must also withstand high-pressure variants as they are filled and emptied - this pressure can cause structural weakening. Fyfe's Tyfo range of products has proven itself to offer second-to-none structural strengthening properties to silos, stacks and chimneys around the world. 

Fyfe Tyfo Chimney strengthening
Industrial Facilities & Power Generation

The Tyfo System is ideal for strengthening industrial structures and tanks as it can easily be installed around existing equipment and instrumentation. Its ease of constructability can be achieved in extreme working conditions with industrial processes remaining operational significantly reducing repairs during shutdown and turnaround periods.

Fyfe System Projects and Case studies

100-Year-Old Bridge Piers Rehabilitated

100-year-old concrete piers rehabilitated with Tyfo FRP system. Work carried out during extended periods of below freezing temperatures to enable access to pier surface (low water levels). Floating and enclosed platforms constructed to enable the
installation. Project completed by a 10-person team over four months.

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.