Taking into account of joint work frame and flooring in the roofing steel tanks

Annotation. The aim of the article is to study the possibility of a significant improvement in technical and economic indicators of fixed roofs steel tanks used for storage of oil and oil products, by taking into account collaborative structures bearing the roof frame with sheet flooring. The relevance of research. With the continuous increase in the cost of steel, any measures that reduce the metal content of constructions without any additional costs of energy and labor resources, seem to be very relevant. Methods: analysis of the stress-strain state of frame and frameless construction of roofs steel tanks, a comparison of the main indicators of frame roofs, calculated with and without working together and supporting the deck frame construction, all calculations are performed using a PC "ANSYS". Results: Quantitative evaluation of the bearing capacity of fixed steel roofs, refined by taking into account the joint work of bearing structures of the roof frame and sheet flooring, produced estimates showing principal possibility and efficacy of frameless roofing for tanks with diameter up to 10-12 m. The practical significance lies in the fact that the results and testing them in a number of real projects, the ability to show a significant (15-20%) reduction of metal roofing stationary steel tanks used for storage of oil and oil products, as well as a significant expansion of the effective use of frameless roofing when regulatory restrictions flooring thickness.