Crane-supporting Steel Structures Design Guide 4th Edition 2021 Pdf Patched -

The 2021 edition was released in response to catastrophic fatigue failures in the late 2010s, specifically at the welded connections of cap plates to crane runway beams. It incorporates the latest AISC 360-16 specifications and adds rigorous new checks for .

Previous editions allowed generous openings in runway beams for utilities. The 4th edition drastically restricts web penetrations within the middle third of the span due to shear buckling concerns under moving loads. The 2021 edition was released in response to

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