ПРОЄКТ КОНСТРУКЦІЇ ПРИЗМАТИЧНОГО БУНКЕРА ТА ОЦІНКА ЕФЕКТИВНОСТІ ПРИЙНЯТИХ РІШЕНЬ

Abstract

The ensuring of the minimum metal consumption of the structure, the reducing the labour-intensiveness of its manufacture and assembly in the construction of steel prismatic bunkers, designed for storage and unloading of free-flowing materials, are entirely determined by the quality of the design structure. The disadvantage of bunker designs is the connection of the side panels at right angles, which causes the unevenness of the stress-strain state and, as a consequence, the occurrence of emergencies. Some studies suggest that one of the main specific causes of bunker breakdowns and damages is related to incorrect determination of structural loads. A number of authors propose the use of multilayer complex design with the utilization of corrugatedsteel sheets, which directed to address the issue of reducing metal consumption. Today there is still no complex approach to solving the problem of ensuring the reliable operation of the structure owing to searching the best structural forms, technologies for its manufacture and assembly.In this connection, the purpose of this work is to develop the design of the prismatic bunker, which allows to ensure operational reliability, production manufacturability and minimal attended costs associated with the construction of the struc-ture on the building site. By means of modeling the stress state in the structures of bunker tanks, the optimal constructive design options were determined, particularly, dimensional parameters and layout of vertical and stiffeningplates.To ensure the operational reliability of bunker tanks, a solution has been developed that provides for the use of stiffening plates in the design of bunker funnel, which ensure the combined work of its sheet part with the stiffening frame. Use of the block principle of construction of bunker tanks allows to increase a degree of factorial readiness of dispatch elements and to reduce labourintensiveness on assembly sites.