Buckling Check of Structures Being Lifted

The stability evaluation of structures being lifted by cranes poses a challenger for the analysts from the inherent hypostaticity that the problem presents. Usual buckling evaluation for standard structures supported by foundations are not possible and alternative modelling strategies are required. Two strategies can be defined for buckling evaluation: The Linearized Buckling Check and The Direct Analysis Method. This paper states the problem and describes both strategies along with the presentation of modelling good practices and a clear framework of codes and standards which bring light into aspects such as load factors; weight contingency; Center of Gravity imprecision, etc. A comparative study for the results obtained from both methods for a typical truss being lifted is presented.