Norway
4 Quay Cranes
Repair Quality Assessment
MEASUREMENT METHODS
Strain Gauges & Accelerometers
PROJECT OVERVIEW
The Challenges
Four quay cranes were surveyed. To reduce significant structural vibration during crane operation, repairs to the trolley, trolley rail and boom-girder hinge had previously been carried out by another company. The effectiveness of the repair was assessed using measurement data obtained before and after the repair from strain gauges and accelerometers
FIELD MEASUREMENTS
Strain Gauge & Accelerometer Measurements
> Strain gauges installed on the crane structure
> Instrumentation installed for crane vibration measurements
MEASUREMENT RESULTS
Before & After Repair Evaluation
> Measured vibration response during crane operation
> Measurement data obtained before and after the repair was used to evaluate the effectiveness of the implemented repairs
PROJECT OUTCOME
Repair Effectiveness Assessment
The effectiveness of the repairs to the trolley, trolley rail and boom-girder hinge was assessed using measurement data obtained before and after the repair from strain gauges and accelerometers. The assessment provided an engineering basis for evaluating the quality and effectiveness of the repair work performed on the quay cranes