DYNAMIC DIAGNOSTICS OF BEARING CONSTRUCTION OF WIDE SPAN GANTRY ? THE WAY TO PREVENT THE ACCIDENTS

Summary. Raising of problem. In the Ukrainian mining and metallurgical complex, chemical and energy industries exploit the wide span gantry for loading and unloading of bulk materials. All the wide span gantry are installed outdoors and, in addition to the atmospheric precipitation, perceive more aggressive technological impact on primary production (water vapor cooling towers, towers quenching coking plant, lime, a pair of air from swelling slag et al.). Working amplitude of oscillations bearing structures of the wide span gantry loader when driving trucks with weighing hundreds of tons lead to fatigue damage - hence the high cost of time and money to remove them. In the literature by calculations and operation of wide span gantry it isn’t consider the questions of research of dynamic loads with technological operations, the accurate definition of dynamic calculations of bearing metal and the possibility of the theoretical prediction their condition, the amplitude decay of oscillations and accelerate production of works with implementation of full-scale study. It’s doing the expert survey with the frequency at least once every 2 years after the end of their service life time of the wide span gantry to determine further technical condition of the crane [9]. The problems in the assessment of aging equipment residual bind with the lack of efficacy of traditional methods of indestructible control. Purpose. On the basis of theoretical research, it will connect the frequency and the shape of the natural oscillations of the spatial model of steel structures wide span gantry with basic versions for possible damage. Conclusion. On the basis of creating a set of emergency wide span gantry you can make the atlas of damage of steel structures. It will allow to do the rapid analysis with changing of the oscillation frequency one of the form, following indication site and possible cause of damage to the main load-bearing steel structures.