Which decks are constructed of sawn lumber that is transversely post-tensioned with high strength steel bars?

Stress laminated decks are specifically designed using sawn lumber that is transversely post-tensioned with high strength steel bars. This construction technique involves placing the sawn lumber layers next to each other and then tightening steel bars that run transversely under tension. The post-tensioning process helps to enhance the structural integrity and load-carrying capacity of the deck by compressing the wood fibers, which mitigates the effects of bending and increases durability.

The design and construction of stress laminated decks are particularly advantageous in applications where enhanced strength and resistance to deformation are needed. This method contrasts with other types of deck constructions that may not utilize post-tensioning or that use different materials and configurations, making the structural characteristics of stress laminated decks unique for certain bridge applications. Understanding these features helps identify why this construction method is preferred in specific engineering scenarios.