NASCLA Accredited Commercial General ContractorMetalsEasy
A steel erector is preparing to lift a large, heavy structural steel column. Prior to the lift, the erector must ensure that the lifting points on the column are adequately reinforced and properly located to prevent buckling or bending during the lift. Which of the following is the primary purpose of lifting lugs in this scenario?
- ATo provide aesthetic finishing for the column.
- BTo serve as connection points for subsequent beams.
- CTo increase the compressive strength of the column.
- DTo facilitate the attachment of rigging for safe lifting.
Show answer & explanationAnswer & explanation
Correct answer: D. To facilitate the attachment of rigging for safe lifting.
Lifting lugs are specifically designed and attached to structural components to provide secure and reinforced points for attaching rigging gear, ensuring safe and stable lifting operations.
Why the other options are wrong
- A. Lifting lugs are functional, not aesthetic components.
- B. Connection points for beams are typically beam seats or moment connections, not lifting lugs.
- C. While reinforcing the area, their primary purpose is not to increase overall compressive strength but to handle lifting stresses.
Lifting Lugs
Reinforced attachment points welded or bolted to structural steel members, specifically designed to safely connect rigging hardware for lifting operations.
- Crucial for safe handling and erection of heavy steel components.
- Must be designed and installed to withstand lifting forces.
- Typically removed or cut off after erection, unless specified for other purposes.
Memory trick: Lifting Lugs: Lift Large Loads Safely.