Multi-strand tensioning is popular for applying stress to large-scale civil engineering structures such as bridges and concrete tanks.
Applying post-tensioning in the design of a bridge can offer savings in terms of project materials. Reductions in concrete volumes can be achieved with lower levels of reinforcement due to the compressive force increasing the section tensile capacity.
Material savings can also mean a reduction in the amount of labour required during construction, which leads to simpler and faster execution.
Interspan has extensive experience in the supply and installation of post-tensioning works in bridges, using state-of-the-art equipment to simultaneously apply uniform stress to the separate strands of the tendon. With pre-stressing forces often exceeding 400 tonnes, our methods ensure efficient transfer of loads and that the highest quality standards are met for maximising the whole-life durability of your asset.