Design and Construction of a Glulam Bridge with an Improved Transverse Deck

摘要

Wearing surface performance has been problematic in the past for timber bridges with transverse panel glued-laminated deck systems. This paper will describe the laboratory testing and field demonstration of a new glued-laminated timber girder bridge. Laboratory work addressed the problematic asphalt cracking common in transverse glued-laminated panel decks. The field demonstration project showcases the retrofit detail which was determined to provide the best field performance. The project was a cooperative effort between the Bridge Engineering Center (BEC) at Iowa State University (ISU) and the USDA Forest Service-Forest Products Laboratory (FPL).