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

Crocetti, Roberto LU ; Ekholm, Kristoffer and Kliger, Robert (2016) In European Journal of Wood and Wood Products 74(3). p.453-461
Abstract

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... (More)

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.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Journal of Wood and Wood Products
volume
74
issue
3
pages
9 pages
publisher
Springer
external identifiers
  • Scopus:84944567518
ISSN
0018-3768
DOI
10.1007/s00107-015-0966-1
language
English
LU publication?
yes
id
9e5173b8-9757-4b41-b43b-c611bdc6dbb3
date added to LUP
2016-05-10 10:57:56
date last changed
2016-05-16 15:03:23
@misc{9e5173b8-9757-4b41-b43b-c611bdc6dbb3,
  abstract     = {<p>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.</p>},
  author       = {Crocetti, Roberto and Ekholm, Kristoffer and Kliger, Robert},
  issn         = {0018-3768},
  language     = {eng},
  month        = {05},
  number       = {3},
  pages        = {453--461},
  publisher    = {ARRAY(0x82cc180)},
  series       = {European Journal of Wood and Wood Products},
  title        = {Stress-laminated-timber decks : state of the art and design based on Swedish practice},
  url          = {http://dx.doi.org/10.1007/s00107-015-0966-1},
  volume       = {74},
  year         = {2016},
}