<p>Endplates are widely used in the industry to attach supplementary steel structures to main building frames.&nbsp; These Endplates can be attached to the building steel using a bolted connection or a welded connection.&nbsp; Industry often favors bolted connections due to ease of installation and availability of qualification methods per AISC 360 Design Guides.&nbsp; However, there are some applications where a welded connection is preferable, such as, cases requiring reduction number of parts supplied or applications with higher chance of vibration causing loosening of bolts.&nbsp; The present case study discusses evaluation of stresses in welded endplates due to forces and moments from the attaching supplementary steel members.&nbsp; The study considers various welded connection scenarios including an endplate welded on two opposite sides and an endplate welded on all four sides.&nbsp; The stress distribution in the plate is studied using finite element analysis with wide flange and tube steel members attaching to it.&nbsp; ANSYS mechanical is used to perform the finite element analysis.&nbsp; Multiple combinations of plate sizes, weld patterns, and attaching member sizes are analyzed to provide a well-rounded solution.&nbsp; An analytical model is developed for the stress evaluation as well and the results are compared with the finite element model. &nbsp;&nbsp;The study also explores shapes with fewer symmetries, such as attached channels and WT members, and investigates the stresses in the plate.&nbsp; The study is intended to provide an efficient methodology for plate evaluation and qualification.&nbsp;</p>

Case Study to Evaluate Stresses in Welded Endplates in Structural Steel

Paper Proceedings: https://asmedigitalcollection.asme.org/PVP/PVP2021/volume/85314

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