DEVELOPMENT OF CONSTRUCTIVE DESIGN OF PICKLING UNITS FOR OPERATION IN HIGHLY AGGRESSIVE HOT SULPHURIC ACID SOLUTIONS
Problem statement. Construction is one of the most important sectors of the national economy, ensuring the creation and reconstruction of buildings and structures and infrastructure facilities. In modern construction, there are constant changes in building structures made of various materials; spatial planning and design solutions for industrial buildings; rational design and operating conditions of building structures and buildings and structures; improvement of technology and organization of construction processes related to the construction and reconstruction of buildings and structures and their complexes, in particular in special conditions; design of technological processes and organization of construction production using modern information support and computer technology; comprehensive mechanization and automation of construction processes. There are also changes in the planning and organization of construction work, due to the introduction of building information modeling technologies in combination with artificial intelligence and the Internet of Things. Installation work is a leading complex process in the construction of buildings, the quality and durability of the building's operation will depend on the characteristics of its execution. In this regard, research devoted to the issues of variant design of the organization of installation of structures of single-story buildings of industrial enterprises depending on production conditions is relevant and timely. The purpose of the work: development of scientifically based recommendations regarding the system of factors that determine the specifics of the technology and organization of installation of structures during the reconstruction of industrial one-story buildings. The formulated goal necessitated the solution of the following tasks: analysis of foreign and domestic experience, legislative acts, regulatory documents on the performance of works on the installation of industrial building structures during the reconstruction of existing industrial enterprises; analysis of the features of architectural, spatial planning and constructive solutions of industrial buildings and the conditions of production of works during the reconstruction of industrial buildings; to substantiate the system of factors that have a decisive influence on the duration, cost and labor intensity of the reconstruction of industrial single-story buildings. The object of research: the process of installing structures of single-story industrial buildings during the reconstruction of existing enterprises. The subject of the research: architectural, spatial planning and structural solutions of industrial one-story buildings; organizational and technological solutions for the production of installation works during the reconstruction of existing enterprises. Research methods: analysis and generalization; systems theory and systems analysis; modeling of production processes, methods of organizational and technological modeling. Practical significance of the results obtained: the results of the work performed can be used in creating models for predicting the values of technical and economic indicators (duration, cost, labor intensity) of projects for the reconstruction of industrial one-story buildings. Main part. Substantiation of the system of factors that reflect the features of architectural, spatial planning and constructive solutions of industrial buildings and the specifics of the conditions for the production of works during the reconstruction of industrial one-story buildings and have a decisive influence on the duration, cost and labor intensity of the reconstruction of industrial one-story buildings to compare alternative organizational and technological solutions for the reconstruction of industrial buildings and choose the most rational one, various technical and economic indicators of the efficiency of construction work are used. Conclusions. To predict the values of technical and economic indicators within the existing resource and time constraints, a set of factors has been formed that influence the duration, cost and labor intensity of the reconstruction of industrial single-story buildings. Taking into account the complex influence of factors that reflect the features of the construction master plan, spatial planning decisions, design decisions, and the performance of installation and dismantling works will allow making informed decisions regarding the reconstruction of industrial one-story buildings. With the involvement of experts, 10 out of 20 factors were identified that reflect the specifics of the reconstruction of industrial one-story buildings and determine the effectiveness of organizational and technological solutions (duration, cost, labor intensity). To create models for predicting the values of technical and economic indicators of projects for the reconstruction of industrial one-story buildings, quantitative values of factors that have the greatest impact on technical and economic indicators were obtained.
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