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http://dx.doi.org/10.9712/KASS.2020.20.2.31

Experimental Study on the Structural Capacity of the U-Flanged Truss Steel Beam With Reinforced End by Steel Plates  

Oh, Myoung Ho (Dept. of Architectural Engineering, Mokpo National Univ.)
Kim, Young Ho (Dept. of Architectural Engineering, Mokpo National Univ.)
Publication Information
Journal of Korean Association for Spatial Structures / v.20, no.2, 2020 , pp. 31-38 More about this Journal
Abstract
U-flanged truss beam is composed of u-shaped upper steel flange, lower steel plate of 8mm or more thickness, and connecting lattice bars. Upper flange and lower plate are connected by the diagonal lattice bars welded on the upper and lower sides. In this study, the details of delayed buckling of lattice members were developed through reinforcement of the end section, in order to improve structural capacity of U-flanged Truss Steel Beam. To verify the effects of these details, the simple beam experiment was conducted. The maximum capacity of all the specimens were determined by the buckling of the lattice. The vertical reinforced details of the ends with steel plates, rather than the details reinforced with steel bars, are confirmed to be a valid method for enhancing the structural capacity of the U-flanged Truss beam. In addition, U-flanged Truss Steel Beam with reinforced endings with steel plates can exhibit sufficient capacity of the lattice buckling by the formulae according to Korean Building Code (KBC, 2016) and Eurocode 3.
Keywords
U-flanged truss steel beam; Simple beam test; Reinforced end details; Steel plates;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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