This article considers the main stages of life cycle of construction project's informational model. The main trends of using various constructions' informational models are revealed and the domestic and foreign experience of implementing BIM technology is analyzed. The maturity levels of BIM technologies are considered according to the Bew Richards model of BIM implementation. It helps to make an analysis of currently used software

Abstract. Problem of obtaining gapless connection between contact surfaces of lining straps of work rolls chocks and facing strips of frames (inner lining straps of backup rolls chocks) is considered. Device for making horizontal wedge thrust of rolling stand which differs in specific consumption of materials and compactness is proposed.

Abstract. Execution of thermal insulation for enclosing structures of residential properties is a sophisticated part of the thermal protection. The choice of insulation materials for external walls is one of the main ways to increase the performance of heat insulation. This article contains thermotechnical calculations of two enclosing structures due to conditions of Saint-Petersburg. According to the results, the thickness of the insulating layer and a total wall thickness of the exterior walls composed of concrete, insulation and sand-cement rendering are smaller than the same characteristics of wall construction of hollow tile, insulation and sandcement rendering.

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