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Dr. Jeffrey Packer and the Steel Tube Institute discuss welding of mitered L- or knee-connections in today's FAQ Friday:Question #8: Welding of Mitered L- or Knee-ConnectionsAre different AWS D1.1 prequalified welds required around the perimeter of…Continue
Dr. Jeffrey Packer and the Steel Tube Institute discuss HSS capacity with holes in today's FAQ Friday:Question #7: HSS Capacity with HolesI have designed a tube header for a door that is taking both horizontal wind and also a vertical load at the…Continue
Today's Friday Feature is by one of our own Atlas Connection experts, Jason McCormick, Assistant Professor, Civil & Environmental Engineering at the University of Michigan, Ann Arbor.Jason recently had an article featured in the…Continue
Dr. Jeffrey Packer and the Steel Tube Institute discuss round-to-rectangular HSS connections in today's FAQ Friday:Question #3: Round-to-Rectangular HSS ConnectionsI have a Warren truss with round HSS branches welded to square HSS chord members.…Continue
The Anaheim Regional Transportation Intermodal Center (ARTIC) has been described by AISC as the most complicated steel structure ever attempted. Fabricated by Beck Steel at their plant in Texas, a total of 40 arches make up this stunning structure.…Continue
Dr. Jeffrey Packer and the Steel Tube Institute discuss the strengthening of HSS columns in today's FAQ Friday:Question #5: Strengthening of HSS ColumnsDo you have any advice for strengthening an existing HSS square column by pumping grout to fill…Continue
Dr. Jeffrey Packer and the Steel Tube Institute discuss sequencing of welds in HSS truss connections in today's FAQ Friday:Question #9: Sequencing of Welds in HSS Truss ConnectionsI’m a Structural Engineer working for the Dept. of Transportation of…Continue
Dr. Jeffrey Packer and the Steel Tube Institute discuss corner radii of square and rectangular HSS in today's FAQ Friday:Question #5: Corner Radii of Square/Rectangular HSSI am an architect interested in using rectangular steel tube for a project –…Continue
Matt Obeid, Vice President at the Steel Supply Co., recently wrote an excellent blog detailing the proper methodology for anchor bolt bending:
The ASTM Specification F1554 spells out everything necessary to make…Continue
Most users of HSS are now aware of the new ASTM A1085 specification for "higher performance" HSS that was approved in 2013 and immediately manufactured by Atlas Tube. Details of the features of this HSS are readily available:…Continue
Rigid moment-resisting beam-to-HSS column connections
There are a number of public domain connection solutions for moment-resisting frames under high seismic loading available as prequalified designs in AISC 358, however none…Continue