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Item Information   Holdings       More by this author     Wilsmann, Joshua.     Subjects     Steel, Structural     Welding     Tubular steel structures     Structural frames -- Joints     Strains and stresses     Strength of materials     Welded joints -- Testing     MSST Project.     Browse Catalog     by author:      Wilsmann, Joshua.       by title:      Weld behavior in a r...         MARC Display

Weld behavior in a rectangular HSS base plate connection with corner anchor rods subjected to an axial tensile force / by Joshua Wilsmann. by Wilsmann, Joshua. Subjects Steel, Structural   Welding   Tubular steel structures   Structural frames -- Joints   Strains and stresses   Strength of materials   Welded joints -- Testing   MSST Project. Description:  81 leaves : ill. ; 29 cm. Contents:  Thesis advisor: Dr. Christopher Raebel. Committee members: Dr. Hans-Peter Huttelmaier, Michael Kempfert. Introduction -- Literature review -- Experimental testing -- Experimental results -- Conclusions and recommendations -- A: Shop drawing -- B: Experimental data. The Hollow Structural Sections Connections Manual contains a proposed design procedure to determine the strength of an HSS base plate connection with corner anchor rods under an axial tension load based on base plate thickness and weld design strength, but no known supporting test results are provided to validate the procedure. Previous research by Christensen recommended adjustments to the equation based on base plate thickness, but found inconclusive results about weld behavior and recommended future research be done focused on weld strength. The purpose of this research project was to investigate the weld behavior in an attempt to validate provisions found in the Hollow Structural Sections Connections Manual relating to weld strength. To achieve this, physical testing was conducted on 12 test specimens, varying the base plate geometry and HSS size. Data were collected during the testing to measure strain along the length of the weld, base plate displacement, and column elongation. Testing showed that a strain concentration develops at the HSS corner weld and distributes along the weld length in a parabolic pattern and that HSS wall thickness affects the strain development along the weld length. Test specimens did not develop the recommended four inch effective weld length used in the proposed equation based on weld strength. Future research is recommended to determine the effect of connection geometry on effective weld length. The proposed equation based on weld strain provided overly conservative results and the author recommends this not be considered when determining the connection capacity.   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .W5565 2012 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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