Design/Evaluation of Overhead Lifting Lugs Using Mathcad

Clement Rajendra, PE

In industrial facilities, power plants, etc., overhead hoists are used for rigging equipment and materials where lower overhead restricts the use of a crane. These overhead hoists are suspended from lifting lugs. An overhead lifting lug is attached to the building structure either by welding directly to it (structural steel or an embed plate in concrete) or by welding to a base plate which is anchored to concrete ceiling by expansion anchors.

Although the following course illustrates an overhead lifting lug, the associated engineering principles can be applied to evaluate lifting lugs attached to a spreader beam, lifted load, etc.

For details on how to design the lifting lugs, please click on the following link: Design/Evaluation of Overhead Lifting Lugs (PDF file, 7 pages).

The design procedures have been implemented on Mathcad Professional, version 7.0. To download the MathCad file, please click on the following link:

Download S106.mcd (MathCad 7.0 format)

Notes:
1. To open the above file, you need the Mathcad Professional version 7.0 or higher.
2. The Mathcad file S106.mcd is provided for illustrative purpose only, and is not intended for use in any specific project.

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Quiz

Once you finish studying the above course content, you need to take a quiz to obtain the PDH credits.

DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDHonline.com or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered professional engineer. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.