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Item Information   Holdings       More by this author     Kempfert, Michael T.     Subjects     Finite element method     Structural analysis (Engineering)     Strains and stresses     Steel, Structural     Joists     MSST Project.     Browse Catalog     by author:      Kempfert, Michael T.       by title:      Lateral load capacit...         MARC Display

Lateral load capacity of steel joist and joist girder seats / Michael T. Kempfert by Kempfert, Michael T. Subjects Finite element method   Structural analysis (Engineering)   Strains and stresses   Steel, Structural   Joists   MSST Project. Description:  91 leaves : ill. ; 28 cm. Contents:  Advisor: Dr. Richard DeVries Committee members: Dr. Hans-Peter Huttelmaier, Christopher Raebel Introduction -- Background -- Preliminary analysis of joist girder seat -- Destructive testing of joist girder seats -- Finite element analysis -- Predicting lateral load capacity -- Final conclusions -- Recommendations -- References -- Bibliography -- Appendix A- Ultimate joist girder seat moment capacity according to the "Bolt Method" B- Predicted capacities using equations (6-5) and (6-6). Steel joist girders have been used for many years as an efficient system to resist gravity loads imposed on building roofs and floors. They may also be effectively used to resist lateral loads imposed on the building. In the past, extensive destructive testing has been completed to determine the allowable lateral loads that may be resisted by joist girders. Recently, the standard joist girder seat depth has been changed from 6-inch seats to either 5-inch for LH joists or 7 1/2-inch seats for joist girders. Therefore, the testing conducted in the past has become invalid. For this project, numerous destructive tests were performed to determine the lateral load capacities of the new joist girder seat depths. These capacities are then compared with the results obtained from finite element models of joist girder seats. It is found that the results from the finite element analysis closely match those found from the destructive testing. From the finite element analysis, the inflection point for the moment gradient of the joist girder seat is accurately found allowing the determination of the lateral load capacity. With the confidence gained in the accuracy of the finite element analysis, it is recommended that future destructive testing be limited, and that finite element analysis be used to determine lateral load capacities of joist girders with different configurations.   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .K46 2003 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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