Reconstruction of Bearing Roof Trusses an Industrial Building without Interrupting the Production Process

The main stages of the reconstruction of the supporting metal truss at the operating industrial enterprise are considered. Reconstruction is due to the need of changing the process. An original solution was proposed to change the design scheme of the truss due to the rearrangement of the lower belt. Main features of this reconstruction are the difficulties caused by limited working space and the implementation of all types of work without stopping the process. The stress-strain state of the farm is investigated at various stages of work: the actual state at the time of the technical survey, during the work period and after all types of reconstruction work have been completed. The article provides technological solutions for the preparation of the working platform, the organization of assemblies, and the installation of structures. Each stage of the reconstruction was controlled by performing various types of calibration calculations. The distribution of internal efforts in the elements of the farm is shown before and after its installation in the working position. Additionally, the behavior of the design of the farm on various possible operational impacts is investigated.