: Detailed guidance on vertical wheel loads, horizontal transverse forces (lateral surge), longitudinal forces, and dynamic impact effects.
: Provides specific load combinations for electrically powered, top-running, underslung, and monorail cranes.
Industrial buildings frequently rely on overhead traveling cranes to move heavy loads. Unlike static building frames, a crane runway system experiences moving, cyclical, and highly dynamic forces. A typical system consists of several critical components:
: Moving loads cause vibration and dynamic amplification. The guide mandates percentage increases to the static wheel loads (typically 10% to 25% depending on the crane class) to account for this vertical impact. Lateral Loads (Side Thrust)
Guidance on the positioning of vertical bracing and the use of pretensioned bolts to resist vibrations and ensure the structure remains stable under dynamic crane movement. Why This Guide is Essential
: Full integration with CSA S16:19 (Design of Steel Structures) and the National Building Code of Canada 2020 .
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The guide calculates this as a percentage of the total trolley weight and lifted load, applied at the top of the rail. Longitudinal Forces
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Crane girders face severe loading. The guide provides, in Limit States Format, methods for designing top-running girders, runway beams for underslung cranes, and monorail beams. 3. Stepped Column Analysis and Design
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: A new dedicated section addresses the unique forces and rail alignment sensitivities of cranes using guide rollers instead of traditional flanged wheels.