Stress-laminated-timber decks: state of the art and design based on Swedish practice
Journal article, 2016

Stress-laminated-timber (SLT) bridge decks are a valid alternative to conventional short- and medium-span bridges in terms of cost and performance. SLT decks are made from a number of planks or glulam beams positioned side by side and stressed together using high-strength steel bars. A concentrated load can therefore be distributed from the loaded beams onto adjacent beams due to the resisting friction caused by the pre-stressing of all beams in the deck. This paper describes the state of the art of SLT bridge decks, with special emphasis on Swedish practice. The effect of butt joints on deck deflection and solution applied to accommodate the loss of pre-stress are shown. Simple design tools for the preliminary design of road bridges are illustrated. Best practice with regard to some detailing, water protection and durability is also discussed. Finally, possible developments of SLT bridges are discussed.

state of the art

glulam

butt joints

pre-stressed

bridge decks

durability

Author

R. Crocetti

Lund University

Kristoffer K J Ekholm

Chalmers, Civil and Environmental Engineering, Structural Engineering

Robert Kliger

Chalmers, Civil and Environmental Engineering, Structural Engineering

European Journal of Wood and Wood Products/Holz als Roh - und Werkstoff

0018-3768 (ISSN) 1436-736X (eISSN)

Vol. 74 3 453-461

Driving Forces

Sustainable development

Areas of Advance

Building Futures (2010-2018)

Subject Categories

Infrastructure Engineering

Other Civil Engineering

DOI

10.1007/s00107-015-0966-1

More information

Latest update

3/2/2018 9