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Item Information   Holdings       More by this author     Christensen, Heather.     Subjects     Steel, Structural     Load factor design     Strains and stresses     Strength of materials     MSST Project.     Browse Catalog     by author:      Christensen, Heather.       by title:      Determining the vali...         MARC Display

Determining the validity of design provisions for HSS to base plate connections with corner anchor rods subjected to axial tension / by Heather Christensen. by Christensen, Heather. Subjects Steel, Structural   Load factor design   Strains and stresses   Strength of materials   MSST Project. Description:  147 leaves : ill. ; 29 cm. Contents:  Thesis advisor: Christopher Raebel Committee members: Dr. John Zachar, Dr. Hans-Peter Huttelmaier Introduction -- Literature review -- Experimental process -- Data results and discussion -- Conclusions and recommendations -- References -- Bibliography -- A: Connection calculations -- B: Test frame and assembly calculations -- C: Shop drawings -- Test data output/results -- E: VITA. According to the American Institute of Steel Construction Hollow Structural Sections Connections Manual (AISC 1977), no published solutions currently exist to determine base plate thickness or weld design strength for an HSS column to base plate connection with corner-located anchor rods in a tensile loading condition. The manual suggests a design procedure, but it does not have physical testing to validate it. The equation suggests effective plate width, yield strength, base plate thickness, and the distance from anchor rod to HSS corner affect the calculated design strength. The objective of this research is to conduct testing to determine validity of the existing design procedure in the HSS Connections Manual or to adjust the equation as needed. To obtain experimental data, specimens with varying base plate and HSS column dimensions and thicknesses were subjected to an axial tensile loading to determine actual plate stress concentrations located between anchor rods and HSS corners. This research focused on the plate stress based equation, but weld strengths and strain were also investigated. Linear strain gages and strain rosettes were used to measure strain in base plates, HSS tubes, and welds. Plate deflection was also measured. Experimental data and calculations showed that the elimination of a factor leftover from an error in the derivation of the equation, along with the addition of an HSS factor, R sub hss, produces comparable results for corner plate stress. The adjusted equation is: (equation). Weld results were inconclusive, but results are discussed. Contributing weld length should be further examined. Research focused on weld behavior is recommended.   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .C455 2010 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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