Design of Underhung Hoist and Crane Girders

Underhung crane girders are often used in manufacturing, industrial, and power plants and have particular design challenges including member continuity, laterally unsupported flanges, fatigue of the support member, and more. Many of these challenges are not considerations in more standard structural designs. This presentation discusses the challenges encountered when designing underhung crane girders and includes a design example.  Topics include:

• Support structures
• Connections between the supporting members and the runway girder
• Runway girders for underslung hoists and crane runways
• Curved monorail support beams

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