Abstract
Economic indicators of construction work, particularly in high-rise construction, are directly related to the choice of optimal number of machines. The shortage of machinery makes it impossible to complete the construction & installation work on scheduled time. Rates of performance of construction & installation works and labor productivity during high-rise construction largely depend on the degree of provision of construction project with machines (level of work mechanization). During calculation of the need for machines in construction projects, it is necessary to ensure that work is completed on scheduled time, increased level of complex mechanization, increased productivity and reduction of manual work, and improved usage and maintenance of machine fleet. The selection of machines and determination of their numbers should be carried out by using formulas presented in this work.
Highlights
The shortage or surplus of machines for construction & installation works significantly affect economic indicators of functioning in construction companies
To determine the need for machines for construction it is necessary to consider: - completion of work on objects in accordance with the scheduled time; - increasing level of complex mechanization of construction and installation works; - increasing labor productivity and reducing the proportion of manual labor; - application of progressive work production methods; - improving the usage of existing fleet of machines; - provision of the machine fleet with required rate of renewal
Formation of the construction machine fleet should be carried out starting with the process of selecting the means of mechanization during preparation of work execution design (PPR) for the construction object and further on the hierarchical structure of management in planning of the development of the machine fleet at the level of trust of mechanization, and the ministry [1, 3, 4, 5]
Summary
The shortage or surplus of machines for construction & installation works significantly affect economic indicators of functioning in construction companies. The rate and quality of construction & installation works and labor productivity largely depend on the technical level of mechanization, as well as the degree of provision of the construction project with machines (level of labor mechanization). To determine the need for machines for construction it is necessary to consider: - completion of work on objects in accordance with the scheduled time; - increasing level of complex mechanization of construction and installation works; - increasing labor productivity and reducing the proportion of manual labor; - application of progressive work production methods; - improving the usage of existing fleet of machines; - provision of the machine fleet with required rate of renewal
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