26   Tying It All Together
By James J. Wingert, SE, PE
An elegant new glass and steel enclosure fills the gap between two existing buildings on the University of Nebraska Medical Center’s Omaha campus.

34   Remove, Reuse, and Reconstruct
By Kamlesh Kumar, SE, PE
Employing the same team for preliminary and final engineering resulted in the most efficient route to rebuilding an Illinois Interstate bridge.

40   Fitting Flyover
By Stan Stallsmith, PE
Des Moines gets a much-needed new steel flyover at a previously tricky nexus of two major highways.

48   Is Single-Coat Inorganic Zinc Enough to Protect Steel Bridges?
By Thomas Murphy, PE, PhD, Travis Hopper, PE, and Jennifer McConnell, PhD
Nearly 30 years after single inorganic zinc coatings were first tested, research confirms their effectiveness in preventing corrosion.

NASCC: The Steel Conference Preview
52   Addressing Acoustics
By Robert Connick
Considerations for sound isolation and noise control in steel buildings.

NASCC: The Steel Conference Preview
54   Verifying the Verifier
By Sam Rubenzer, SE, PE
Software is a given in structural design and analysis, but just remember that it’s not the engineer. You are.

NASCC: The Steel Conference
57   2023 Exhibitor List



16   Teaming Up
By Michelle Roelofs, PE
A new AISC Design Guide provides a roadmap for designing hybrid steel and wood systems and getting the best out of both materials.

Data Driven
20   Moving the Conversation—and the Industry—Forward
By Brian Raff
AISC’s new set of “one-pagers” is geared toward helping steel industry professionals start conversations that result in more steel projects being built.

Field Notes
22   Conveying Cambering Considerations
Interview by Geoff Weisenberger
An expert on steel design, fabrication, and erection with a half-century-plus of experience, former LeJeune Steel president Larry Kloiber shares his thoughts on his life in the industry, particularly his work with cambering steel.

Business Issues
24   School of Hard Knocks
By Casey Brown
The best lessons in good steel construction practices don’t come from formal instruction but rather from real-life experience.