Reinforced concrete arch for bridge (precast units)
Reinforced Earth Company
TechSpan® is a state-of-the-art, three-hinged precast concrete arch system that consists of half arch units that meet at the crown and are supported by a footing that is sized for site specific conditions. The innovation of this technology is to customize and optimize the system to each specific project’s special loading requirements. Design methods using Finite Element Method (FEM) accurately defines the optimal radius of curvature of the arch to minimize tensile stresses. Efficiency and economy of design increases progressively as the embankment height over the crest increases.