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Dr. Jeffrey Packer and the Steel Tube Institute discuss the limits of validity in trusses in today's FAQ Friday:QUESTION:The limits of validity in Chapter K of AISC 360-10 indicate a branch angle of greater than or equal to 30 degrees. Does this…Continue
Dr. Jeffrey Packer and the Steel Tube Institute discuss the best practice for connecting a WF beam to the top of an HSS column in today's FAQ Friday:Q: There is some debate in our office as to the best practice when designing the connection of a WF…Continue
SteelDay is an annual event hosted by the American Institute of Steel Construction (AISC) that showcases how the structural steel industry contributes to building America. Attended by thousands of professionals and…Continue
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
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