A method to solve discrepancies of scale model in seismic shake table test of quayside container crane

摘要

The quayside container crane (QCC) scale models for seismic simulation test on vibration tables are often high, and the model size and QCC structural size differences introduce discrepancies into the QCC model. In this investigation, discrepancies in the QCC scale model were solved using the similarity method for the sectional radius of inertia. Firstly, a governing equation for the beam section size was established. Secondly, a scale model was constructed for the shake table test, and the results were compared with the simulations. It is demonstrated that the experimental results were close to the simulations. Specifically, the acceleration, strain extreme values, and the time of occurrence were similar at different QCC points. This reveals that the shake table test of the QCC scale model can approximately reflect the prototype seismic response, which verifies the feasibility of the model design method.