LIFTING_LUG" is a spreadsheet program written in MS-Excel for the purpose of analysis of lifting lugs,

used in rigging operations. The user can enter a desired factor of safety (most applications, F.S.

= 5.0). The program will determine the ultimate strength of the lifting lug based on several checks and

will apply the desired factor of safety to the strengths to attain allowable loads for the lifting lug.

This program is a workbook consisting of two (2) worksheets, described as follows:

Worksheet Name - Description

Lifting Lug - Analysis of lifting lugs per 13th Ed. AISC Manual (ASD) and Reference #1a & b

Program Assumptions and Limitations:

1. The following references were used in the development of this program:

a."Design and Construction of Lifting Beams" - David T. Ricker, originally published in American Institute

of Steel Construction (AISC) - Design Journal, 4th Quarter 1991.

b."Design of Below-the-Hook Lifting Devices" - ASME BTH-1-2008, American Society of Mechanical

Engineers.

c.American Institute of Steel Construction (AISC) 13th Edition Allowable Stress Design (ASD) Manual

(2005)

2. This program contains “comment boxes” which contain a wide variety of information including

explanations of input or output items, equations used, data tables, etc. (Note: presence of a “comment

box” is denoted by a “red triangle” in the upper right-hand corner of a cell. Merely move the mouse

pointer to the desired cell to view the contents of that particular "comment box".)

Calculation Reference

American Institute of Steel Construction (AISC) 13th Edition Allowable Stress Design (ASD) Manual

Lifting Lug Design

Design and Construction of Lifting Beams David T. Ricker