InTrans / Aug 14, 2018

A Structural Wood System for Highway Bridges

The Ontario Ministry of Transportation and Communications is developing a new family of timber bridges based on the transverse post-tensioning of longitudinally laminated decks. The paper highlights only some of the findings. The development program is aimed at rehabilitating wood as a viable, competitive structural material for bridges. The system permits low-grade materials, consumes less than 10% of the energy required by steel bridges and can be built at any time of the year by unskilled labour.