Structural Inspection
Detailed examination of a crane's structural members for cracks, corrosion, deformation, and weld integrity.
In Detail
Structural inspection is a thorough examination of all load-bearing members of the crane including the boom, jib, mast, superstructure frame, turntable, crawler frames or carrier, and outrigger beams. Inspectors look for cracks (especially at weld joints and high-stress areas), corrosion, deformation, bent or buckled members, loose or missing bolts, and worn pin connections. Advanced techniques like magnetic particle testing (MT) or ultrasonic testing (UT) may be required for critical welds. Structural failures are among the most catastrophic crane incidents — they often occur without warning and can result in total collapse. Structural inspections are a key component of annual comprehensive inspections.
Related Terms
Annual Inspection
A comprehensive yearly inspection performed by a qualified person to assess all crane systems and components.
Qualified Person
An individual with recognized credentials and demonstrated ability to solve crane inspection and safety problems.
Boom
The primary structural member of a crane that extends outward and upward to position the hook over the load.
Lattice Boom
A crane boom constructed from individual steel sections connected with pins, offering high strength-to-weight ratio for heavy lifts.