Irish Rail – UB702 Portal Frame (774)

Shay Murtagh supplied seven portal frame assemblies for this project. Each portal assembly consisted of an inverted U-shaped roof unit which bears onto two wall leg base units. Each portal roof weighed 30T and each base leg unit weighed 8T. The overall size of the portal was 6.52m high by 11.7m wide. A longitudinal rebate with projecting reinforcement was provided in the portal roof units to enable the casting of an insitu stitch between adjacent portals. Projecting reinforcement was also provided in the bottom of the wall units to enable the casting of an insitu base stitch.