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Title:Full-Scale Tests on a 32-Foot Nail-Glued Truss Design with 1 1/2" Lumber
Author(s):Percival, Donald H.
Building materials
Abstract:This report covers the testing of a 32', 4/ 12 slope roof truss design using 1 1/2 inch lumber with nail-glued plywood gusset and splice plates. The pro-ject was a cooperative investigation between the Small Homes Council-Building Research Council, University of Illinois at Urbana-Chan1paign, and GBH-Way Homes, Inc., of Walnut, Illinois. The study evolved primarily from the recent changes in standard lumber sizes. Code bodies, lending agencies, designers, etc., are among those who have been requiring substantiating performance data on truss designs originially produced for 1 5/ 8-inch lumber and now fabricated with 1-inch lumber. The graphical methods of analysis are unreliable in calculating stresses in the nail-glued truss. They do not consider the combined stresses due to secondary bending caused by the extreme rigidity of the nail-glued joint. The objectives of the program therefore included full-scale load tests to obtain both deflection data at design load and load-to-failure information on three randomly-selected trusses representative of those being used for the construction of homes by the sponsor.
Issue Date:1973
Publisher:Small Homes Council - University of Illinois Urbana-Champaign
Series/Report:Research Report 73-1
Genre:Technical Report
Sponsor:GBH-Way Homes, Inc (Walnut, Illinois)
Rights Information:Copyright 1973 Board of Trustees of the University of Illinois
Date Available in IDEALS:2014-09-23

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