Quantitative and qualitative study on the state of stresses and strains of the strength structure of a crane bridge

In heavy-duty material handling equipment, major concern is optimum utilization of material for equipment construction without sacrificing the design parameters. To understand this aspect and also to validate the design, as this kind of equipment are vital part of any manufacturing industry, finite element analysis is one of the best method that can be used extensively. This paper work provides a modeling of the structural strength of a crane bridge, in operation for 15 years in the continuous casting department of a steel plant. Due to the importance of the cranes bridge within the technological processes in which they are involved, either from the point of view of steel consumption or functionality, their resistance calculation, during the design phase and after a certain operation period, constitutes a permanent field of investigation which aims a faithful schematization to be used in further modeling, appropriate for our target. Modeling will be done with the aid of a COSMOS/M software in two numerical variants using beam3 and shell 3 type finite element. This paper work is meant for checking out the limit state of the structure subject to normal operation, which involved the evaluation of its reaction while under working in terms of quantity and quality. In quantitative terms, we have revealed that the structure had reserves of strength; qualitatively speaking it had confirmed the validity of modeling.