BSWH Roof Slab Reinforcement
Roof-slab carbon fiber reinforcement addressing localized reinforcement loss with nighttime access and interior protection.
Delta Structural Technology completed a carbon fiber retrofit of a BSWH roof slab. The design addressed loss of reinforcement at locations identified by L.A. Fuess Engineers. Prepared for Austin Commercial, the installation scope combined surface preparation, an epoxy-bonded carbon fiber system and protection of surrounding interior surfaces, with nighttime work included in the coordination plan.
- Market
- Healthcare
- Services
- CFRP slab strengthening
- Structural members
- Slabs
Project challenge
The engineering issue was localized loss of slab reinforcement. Existing paint and attached conduit complicated direct access to the concrete receiving the fiber system. The repair planning therefore had to connect the structural requirement with the practical steps needed to expose, prepare and reach the slab while protecting the adjacent walls and floors.
Project approach
The design described reinforcement extending across the affected slab span, with carbon fiber width and layering tied to the engineering assumptions for the post-tensioned slab. Delta’s scope included rolling scaffolding, paint removal and concrete surface profiling before reinforcement layout. Both the substrate and fabric were to receive epoxy before placement to the drawings. The work sequence also allowed for adhesion testing after curing if the project required it.
Delivery and coordination
The project was planned for nighttime installation. Temporary protection around the work area and coordination of conduit removal or loosening by others were prerequisites to access. The cited design used a governing condition for the affected areas, bringing them under a consistent reinforcement approach. Product submittals and system shop drawings formed the connection between the structural detail and the installation sequence.
Project significance
The BSWH project illustrates a targeted response to reinforcement loss in an existing roof slab. Its distinguishing features are the span-oriented carbon fiber detail and the interior coordination needed to reach the concrete. The case emphasizes the importance of linking engineering assumptions, surface preparation and access requirements when adapting a bonded strengthening system to a healthcare building.
