Crane-supporting Steel Structures Design Guide 4th Edition 2021 — Must Watch
The Crane-Supporting Steel Structures: Design Guide, 4th edition (2021)
Notable additions and technical focus areas in the 4th edition include: Cranes with Guide Rollers: Flange thickness ≥ 1/16 of the distance between
Analysis Techniques: Comprehensive guidance on monosymmetric sections and torsion analysis, which are common in crane beam design. , authored by R
"No," Elias said, sliding a new set of drawings across the table. "We follow the Guide's retrofitting philosophy. We increase the lateral stiffness of the runway beams by 40% using bolted reinforcement plates, and we replace the end trucks with energy-absorbing bumpers. The Guide explicitly states that controlling drift is about controlling the energy input." The Crane-Supporting Steel Structures: Design Guide
Step 3: Frame Analysis (With Guide-Recommended Load Combinations)
The guide provides specific LRFD combinations distinct from ASCE 7 (e.g., 1.2D + 1.6L + 1.0Lateral + 0.5Longitudinal). These account for the unlikely concurrent maximum of all crane forces.
The Crane-Supporting Steel Structures: Design Guide, 4th Edition (2021) by R.A. MacCrimmon, published by the CISC, is the primary technical resource for designing industrial structures under Limit States Design, aligned with CSA S16:19 and NBC 2020. This updated guide covers crane-supporting structural elements, fatigue analysis, and specialized scenarios like cranes with guide rollers. Purchase the guide and view more details at CISC Steel Store.
- Flange thickness ≥ 1/16 of the distance between the web and the toe of the flange, but never less than 3/8 inch for welded girders.
- Web thickness ≥ 1/4 inch for any crane > 5 tons.
, authored by R.A. MacCrimmon and published by the Canadian Institute of Steel Construction (CISC), is the definitive technical resource for designing crane runways according to Canadian limit states design. Core Focus & Application
- Capacities and cycles: More granular data for very high-cycle operations (e.g., automated warehouses with Class F cranes).
- Web gap fatigue: Expanded guidance on the notorious fatigue-prone region at the connection of the crane runway web to the supporting flange or bracket.