Estimation of deformations of steel constructions of cranes based on photogrammetry

The paper considers the results of application photogrammetry to assess deformations rod and plate elements steel constructions hoisting machines, analysis main problems arising in their processing proposed solutions ensure necessary accuracy. authors, based on own research practical experiences use photogrammetry, carried out accuracy rating magnitude deformations. Based a brief review normative documents, proposals for rationing permissible values measurement errors are given. also that may arise assessment deformed state design status proposes approaches solving these problems. One solved study was deformation rear belt support blocks equalizing polyspast, resulting from an emergency situation during operation crane KPL-16-30. In addition assessing overall entire element, some sections structure assessed. estimating modeling shape curved axis beam or rod. Also considered experience deflection 0.5 t electric hoists guide laboratory machines. authors shared inspecting wagon tippler No. 2 examination. transverse deformations, task check possible torsion metal moving part. process work were revealed, solution which will make it provide measurements. When evaluating approximation accuracy, propose several approaches.