Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


You are here: FPL Home  / Information Products & Services  / Publications

Requested Product

Title: Assessing the Capacity of Three Types of Round-wood Connections

Source: In: WCTE, World Conference on timber Engineering, New Zealand, 15-19 July 2012 pp. 154-157; 2012.

Author(s)Gorman, Thomas M.; Kretschmann, David E.; Begel, Marshall; Fishwild, Sarah; Shilts, Richard; Nelson, Timothy C.

Publication Year: 2012  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4714-2A

Abstract: In the Western US, millions of acres of forestland have lost ecological integrity. These overstocked stands are at significant risk for disease and insect attack, and high risk for catastrophic wildfire. Finding alternative and higher value uses for material thinned from the forests can help pay for mechanical thinning. Three different types of connections for round wood members made of Douglas fir and Lodgepole pine were tested. Results showed that all three types of connections exceeded the anticipated design load. There were, however, significant differences between the ductility and deflection capacity.

Keywords: Round-Wood Connections; Structural Screws; Bolted Connection; Gussets; Fasteners; Thinnings

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 2,680 kb(s)

Date posted: 11/14/2012

This publication is also viewable on Treesearch:  view
RITS Product ID: 62776
Current FPL Scientist associated with this product
Kretschmann, David E.
Research General Engineer

Additional items that might interest you
View the video celebrating FPL's 100 years of public service in 2010, from the producers of the Greatest Good....view

Research Highlights from FPL....view

Termite Eradication: A search for the Holy Grail.... view

Moisture Management in Residential Construction Series videos...view

Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »

Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »

Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »

Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »