Prestressed Concrete Bridge Slabs & Precast Deck Panels
Prestressed concrete is a method for overcoming concrete's natural weakness in tension. It can be used to produce beams, floors or bridges with a longer span than is not practical with ordinary reinforced concrete. Prestressing tendons (generally of high tensile steel cable or rods) are used to provide a clamping load which produces a compressive stress that balances the tensile stress that the concrete compression member would otherwise experience due to a bending load. Traditional reinforced concrete is based on the use of rebar, inside poured concrete. An innovative bridge construction method using pre-stressing is the stressed ribbon bridge design.
- Lower Construction Costs
- Thinner slabs
- Crack Control
- Increasing spans