Simplifying a Complex Roof
The American Airlines Center in Dallas, Texas, a unique mix of structural steel and post-tensioned concrete, provides an innovative and surprisingly economical response to the classic but complex cross-vault architectural roof shape.

Fire Resistance of Steel Structures
Certain trusses made of structural steel shapes that support large portions of buildings are deemed to be of “critical” structural importance. Adequate attention is essential to the fire resistance aspects of truss design.

The Power of Technology
Technology has provided the profession with numerous digital problem solving tools. However, technology often changes more rapidly than we may be comfortable with. Electronic Data Interchange (EDI) is a tool intended to bring all of the project team members together… digitally. Here is a window into the EDI concept, and a glimpse into how the structural engineering community is adapting.

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On the Cover...Fire Resistance of Steel Structures. Photo courtesy of Arup Photo Library.