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Madison, WI 53726-2398
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Title: Timber Bridges: Design, Construction, Inspection, and Maintenance Chapter 08: Design of Longitudinal Deck Superstructures

Source: United States Department of Agriculture, Forest Service, Washington, DC.

Author(s)Ritter, Michael A.

Publication Year: 1990  View PDF »

Related Publications: view

Category: US Forest Service Publication

Abstract: Longitudinal deck superstructures consist of a glulam or nail-laminated lumber deck placed over two or more substructure supports (Figure 8-1). The lumber laminations are placed parallel to traffic, and loads are applied parallel to the wide face of the laminations. The deck provides all structural support for the roadway, without the aid of beams or other components. In most configurations, however, transverse stiffener beams are connected to the deck underside to distribute loads laterally across the bridge width. Longitudinal deck bridges provide a low profile that makes them especially suitable for short-span applications where clearance below the structure is limited. The same basic configuration can also be used over transverse floorbeams for the construction or rehabilitation of other superstructure types.

Keywords: Glulam;Load;Design;Deck; the timber bridge manual;

File size: 988 kb(s)

Date posted: 06/02/2009
Current FPL Scientist associated with this product
Ritter, Michael A.
Assistant Director
  

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