InTrans / Aug 14, 2018

Design Concepts: Glulam in Railroad Construction

Glued laminated timber or “glulam” is one of the strongest and most resource efficient members of today’s family of glued engineered wood products. Its dimensional stability, strength, availability, and quality make it an ideal product for railroad bridge components, including ties, stringers, and deck panels. Glulam has been used in construction in the United States since 1934. A significant development in the glulam industry was the introduction of fully water-proof adhesives in the mid 1940s. This allowed glulam to be used in exposed exterior environments without concern of glue line degradation. Exterior uses include electric utility structures, marinas and pedestrian, highway and railroad bridges.