Hardwood glued-laminated timber bridges

Harvey B. Manbeck, John Jack Janowiak, Paul R. Blankenhorn, Peter Labosky, Ray W. Witmer

Research output: Contribution to conferencePaperpeer-review


Standard designs and specifications for hardwood glued-laminated highway bridges have been developed by Pennsylvania State University researchers. The research program for development of the standard plans and specifications, including species selection, laminating processes, treatment processes, and structural performance of hardwood glued-laminated girders, is presented. The resulting standard plans are for longitudinal girder, transverse deck red oak, red maple, or yellow poplar glued laminated bridges with clear spans ranging from 5.5 m to 27.5 m. Design loads are HS-25 or IML-80; live load deflections are limited to span/500. Standard designs are also included for 5.5 m to 7.3 m longitudinal deck glued laminated bridges for the same design criteria and hardwood species. The results of continuing efforts to improve the efficiency of the hardwood glued-laminated bridge designs are also summarized.

Original languageEnglish (US)
Number of pages5
StatePublished - Jan 1 1997
EventProceedings of the 1997 15th Structures Congress. Part 2 (of 2) - Portland, OR, USA
Duration: Apr 13 1997Apr 16 1997


OtherProceedings of the 1997 15th Structures Congress. Part 2 (of 2)
CityPortland, OR, USA

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Architecture


Dive into the research topics of 'Hardwood glued-laminated timber bridges'. Together they form a unique fingerprint.

Cite this