216. experimental verification of a procedure for smf continuity plate weld design

Department: Structural Engineering
Faculty Advisor(s): Chia-Ming Uang | Chia-Ming Uang
Award(s): Department Best Poster

Primary Student
Name: Adel Mashayekh
Email: amashaye@ucsd.edu
Phone: 619-335-7841
Grad Year: 2017

Abstract
AISC 341 requires that continuity plates in a Special Moment Frame welded moment connection be connected to the column flanges by complete-joint-penetration groove welds. Recently, Tran et al. (2013) proposed a design procedure that allows the designer to evaluate the required forces in the continuity plate such that more economical welds (e.g., fillet welds) can be used. With some minor modifications to the original design procedure, two one-sided Reduced Beam Section moment connection specimens were designed and constructed for experimental verification of the proposed design procedure. To evaluate the effect of potential column kinking on the fillet welded joints between the continuity plates and the column flanges, weaker panel zones that still satisfied the code requirement were used. Although AISC 341 implicitly assumes that continuity plates should remain essentially elastic, the continuity plate thickness of one specimen was intentionally undersized to evaluate the effect of continuity plate yielding on the connection performance. Test results showed that using fillet welds is feasible; no damage was observed in these fillet welds and the connection performance was not affected by the type of weld joints used. The design procedure also indicates in strength check the significant effect of both shear force and moment in the continuity plates, especially when shallow columns are used.

Industry Application Area(s)
Civil/Structural Engineering

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