Bearing Strength of Cold Formed Steel Bolted Connections in Trusses

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The existing design provision in North American Specification for Cold- Formed Steel Structural Member (AISI S100) for the bearing strength of bolted connections were developed from tests on bolted connected sheets which were restrained by bolt nut and head with or without washers. However, in the cold-formed assemblies, particularly in trusses, the single bolt goes through both sides of the connected sections, making the connected sheets on each side unrestrained. the warping of the unrestrained sheet may reduce the bearing strength of the bolted connection. This research investigates the behavior and strength of bearing failure in bolted connections in cold-formed ... continued below

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Panyanouvong, Mark May 2012.

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This thesis is part of the collection entitled: UNT Theses and Dissertations and was provided by UNT Libraries to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 4472 times , with 61 in the last month . More information about this thesis can be viewed below.

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  • Panyanouvong, Mark

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The existing design provision in North American Specification for Cold- Formed Steel Structural Member (AISI S100) for the bearing strength of bolted connections were developed from tests on bolted connected sheets which were restrained by bolt nut and head with or without washers. However, in the cold-formed assemblies, particularly in trusses, the single bolt goes through both sides of the connected sections, making the connected sheets on each side unrestrained. the warping of the unrestrained sheet may reduce the bearing strength of the bolted connection. This research investigates the behavior and strength of bearing failure in bolted connections in cold-formed steel trusses. Tensile tests were conducted on trusses connections with various material thicknesses. It was found that the AISI S100 works well for thick connections but provides unconservative predictions for thin materials. Based on the experimental results, a modified bearing strength method is proposed for calculating the bearing strength of bolted truss connections. the proposed method can be used for any cold-formed steel connections with unrestrained sheet.

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  • May 2012

Added to The UNT Digital Library

  • Nov. 6, 2012, 3:03 p.m.

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  • Nov. 16, 2016, 5:38 p.m.

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Panyanouvong, Mark. Bearing Strength of Cold Formed Steel Bolted Connections in Trusses, thesis, May 2012; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc115135/: accessed June 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .