FRP, Renewable Energy and Technology

Dr. Naguib has extensive experience in renewable energy system design, layout and construction management. Dr. Naguib and WIN Structural team managed sub-consultant teams of Electrical, Civil and Mechanical engineers for the development of hundreds MW solar plant in CA.

With high academic personnel on staff, the research and development team and knowledge of state-of–the-art technologies, WIN Structural became a pioneer in using new material such as FRP in real life construction application as a consequence of WIN Structural staff participation in science and technology research.


PROJECT: Solar System Heavy Piling and Structural Design – SunPower, Richmond, CA

Developed design criteria and applied structural loading including wind and seismic.

Review of the sensor tower foundations and guy cables anchorage. Designed and reviewed the heaving piles design, the constructability and the solar track system support.

The work included design of the temporary construction facility for SunPower and sub-consultants as well as fire and water tanks on the site.

WIN structural engineers designed the foundations for the O&M building, inverters and heavy transformers.

FRP project - garage

PROJECT: Westin Hotel Parking Garage, Long Beach, CA

WIN Structural Consulting GRP investigated, developed conceptual strengthening schemes for the parking structure slabs that were cracked and deteriorated due to multiple factors among them: the chemical spills attack, lack of adequate reinforcement and improper detailing.

The work included design and retrofit using FRP carbon strips. Developed the design for the FRP strips added for top and bottom strengthening. In addition to that, performed shop drawings and detailing for the fabrication and construction team. Supervised the application and performed pull-out bonding tests to confirm that FRP application was done according to ACI guidelines and bonding stress was achieved.

WIN structural engineers developed specifications for concrete repairs of the slabs before the application of FRP to ensure the composite concrete/FRP system will be functional.

Seismic Retrofit

PROJECT: Design of Sludge Canopy System-Secondary Clarifiers, San Lorenzo, CA

Based on the peak capacity restoration technical memorandum prepared by HDR engineering, Oro Loma sanitation district decided to install sludge canopy baffle system made of FRP (also known as Sludge Protector Canopy Baffle system-CANBAF) in the new secondary clarifiers. The baffle system was made of interconnected FRP panels. The system is supported from the energy dissipating inlet (EDI) and flocculation center well (FCW). The new baffle system is sloped, spanning and supported by the EDI and FCW.

WIN structural engineers performed structural design using API provisions to verify the proposed thickness of the panels and attachment location and full scale testing protocol at a specialized laboratory to validate the FRP panel system and its efficiency.

Prepared contract documents for bidding and construction, detail structural drawings and calculations.

Seismic Retrofit

PROJECT: Blackhawk Drive Bridge (Retaining Wall Strengthening Using FRP), Danville, CA

The project included retrofit of the existing bridge system retaining wall using FRP carbon strips to supplement the deficiency of steel rebars on the walls. The retaining walls were part of the soil structure stability system of the bridge. Acted as construction manager of the project, reviewed and approved the contractor’s means and methodsof construction.

WIN structural engineers developed specifications for concrete repair including FRP specifications to guarantee that the application of FRP composite concrete system will be functional.


PROJECT EXPERTISE: FRP Design Experts and Training Consultants

WIN Structural has in house expertise in teaching structural FRP application, developing technical memorandum and organizing seminars for professional engineers on using FRP in structural applications and building retrofits. Dr. Naguib from WIN is a member of ACI- 440 design guidelines committees for structural strengthening and seismic applications using FRP systems with many publications in that field.

Time History Non-Linear Analysis and Study – KAZAK Composites, Inc. (KCI), Various Locations, USA

PROJECT: Seismic Time History Non-Linear Analysis and Study – KAZAK Composites, Inc. (KCI), Various Locations, USA

WIN team members worked on the evaluation of different seismic energy dissipation systems for structures. The study included viscous dampers, as well as new damper types that can be used in building design in high seismic region in order to enhance their performance during seismic events. The study also included comparative performance of buckling-restrained braces and moment frames measuring the inter-story drifts of 3, 9 story buildings of steel shell construction type. Studied and compared seismic performance (inter-story drifts and floor response spectra) Developed the analytical models in CSI perform and producing final design recommendations and reports. See the publications section for published results.

American Water Works Association AWWA, R&D – FRP Strengthening Methodology of PCCP Pipes

PROJECT: American Water Works Association AWWA, R&D – FRP Strengthening Methodology of PCCP Pipes

Developed the state-of-the-art code provisions, techniques and methodology to strengthen pre-stressed wired concrete pipes with Carbon Fiber wrap without excavation. The carbon FRP internal wrap will be applied in layers for the 60in diameter to the 114in diameter pipes with special detailing at the liner’s ends without excavation. The WIN engineers studied the new retrofit and coordinated the set of plans for the retrofit detailing of CFRP liner. This application is implemented whether for underground public utility projects or for nuclear facilities infrastructure pipes.