FEASIBILITY OF USING METAL PLATE CONNECTED TIMBERSTRAND LSL JOINTS IN THE TRUSS FABRICATION INDUSTRY

Öz Metal plate connectors enhance the load transfer by increasing the bearing area between wood member and the fastener. Because of having many advantages, metal plate connected (MPC) wood trusses have been widely used for over 50 years in many building applications especially in prefabricated homes. In this study, the possibility of using Timberstrand® laminated strand lumber (LSL) as a raw material was investigated. The behavior and the performance of metal plate connected Timberstrand connections loaded perpendicular to the grain in tension and shear at 0o, 45o and 90o orientations has been examined in accordance with ANSI TPI 1995 standards. According to the test results, Timberstrand joints performed better than solid southern pine joints in both tension (51%) and shear (10%) loading. This means that Timberstrand LSL has a very good potential for use in the truss fabrication industry.

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o ASTM D-1751-88, 1988. American Society for Testing and Materials Philadelphia, PA. Standard Test Methods for Mechanical Fasteners in Wood.

o ANSI/TPI 1-1995, 1995. Design Specifications for Metal Plate Connected Wood Trusses.

o Beamchek 1999. Structural Composite Lumber Values, http://www.beamchek.com/SCLvalues.htm (12/03/2016)

o BOCA 1997. (Building Officials Code Administrators) Research Report of Alpine Wave Plate. 1997-4.

o Denizli-Tankut, N., Smith, L. A., Smith, W. B., Tankut, A. N. 2004. Physical And Mechanical Properties of Laminated Strand Lumber Treated With Fire Retardant. Forest Products Journal, 54(6), 63-70.

o Emerson, R. N., Fridley, K. J. 1996. Resistance of Metal Plate Connected Truss Joints to Dynamic Loading. Forest Products Journal, 46(5),83-90.

o Foschi, R. O. 1977. Truss Plate Connections. Canadian Journal of Civil Engineering, 4(3),353-362

o Gebremedhin, K. G., Jorgensen, M. C., Woelfel, C. B. 1992. Load-SIip Characteristics of Metal Plate Connected Wood Joints Tested in Tension and Shear. Wood and Fiber Science, 24(2),118-132.

o Gebremedhin, K. G., Crovella, P. L. 1991. Load Distribution in Metal Plate Connectors of Tension Joints in Wood Trusses. Transactions of the ASAE. American society of Agricultural Engineers, 34 (1),281-287.

o Ginis, C. 1985. Tension and Shear Behavior of Laminated Veneer Lumber/Metal Plate Joints. Master's thesis. Department of Wood Products Engineering. SUNY-ESF Syracuse NY. Güntekin, E. 2009. Performance of Turkish Calabrian Pine (pinus brutia ten.) Timber Joints Constructed with Metal Plate Connectors. Wood Research, 54(3), 99-108.

o Holcomb, M. 1982. The Behavior of Laminated Veneer Lumber Fastened with Metal Plate Connectors and Loaded Perpendicular to The Grain. Master's thesis. Department of Wood Products Engineering. SUNY- ESF Syracuse NY.

o Hoover, C. C. 1996. An Overview of the Metal-Plate- Connected Wood Truss Industry, http://www.alpeng.com/alpine /Overview.htm (10/03/2016)

o Mc Alister, R. H., Faust, T. D. 1992. Load/Deflection Parameters for Metal Plate Connectors in Yellow Poplar and Sweetgum Structural Lumber. Forest Products Journal, 42 (3),60-64.

o Mac Arthy, M., Wolfe, R. W. 1987. Assessment of Truss Plate Performance Model Applied to Southern Pine Truss Joints. Res.Pap. FPL-RP-483. Madison, WI: USDA, Forest Products Laboratory. 13pp.

o Mc Kenna, J. 1979. An Evaluation of Laminated Veneer Lumber When Used with Metal Plate Connectors. Master's thesis. Department of Wood Products Engineering. SUNY-ESF Syracuse NY.

Wood Connections. Journal of Testing and Evaluation, 19(6), 421-428.

Bartın Orman Fakültesi Dergisi-Cover
  • ISSN: 1302-0943
  • Yayın Aralığı: Yılda 3 Sayı
  • Başlangıç: 1998
  • Yayıncı: Bartın Üniversitesi Orman Fakültesi