AssociateProfessor
Department of Mechanical and Industrial Engineering
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25123 Brescia
Italy
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Uploaded abstract link: Portal_Crane_Abstract.pdf
Uploaded final paper link: Portal_Crane.pdf.
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Luigi Solazzi
Associate Professor
Department of Mechanical and Industrial Engineering
Associate Professor
Department of Mechanical and Industrial Engineering
Gantry crane subjected to pendulum load actions
Lifting equipment are machines subject to many loading conditions, in particular the actions induced by the load movement. The dynamic effects assume a fundamental role regards the actions acting on the structure [1-5]. Obviously these actions are completely different to the other loading conditions such as seismic or wind actions which are applied to the whole structure and not only to the payload [6-7]. The vertical dynamic actions, which are obtained by multiplying (with a coefficient that in general varies from 1.2 to 2) the nominal load or working load limit of the lifting equipment [4,8], are particularly important. In gantry cranes, in addition to lifting actions, also the actions induced by trolley movement are very significative. These actions generate an oscillatory movement of the load and vibrations on the structure [9]. The magnitude of the oscillations and vibrations is highly
