The prospect is explored to arrange for incoming and ongoing quality control using digital tools and devices, including those supplanting conventional ones. The paper underscores the importance of integrating digital quality control technologies and BIM technologies as a means to identify potential defects and justifies the relevance of improving the gesture control code for quality control purposes. It further summarizes the quality control techniques and procedures and highlights an opportunity to develop digitalized quality control charts based on effective conventional documents.

Keywords: integration of BIM, VR and АR technologies, laser scanner, ongoing quality control chart, digital quality information model

The overview of the existing horizontal and vertical nodal joints for 3D modular building blocks and plane elements has shown that tongue and groove is the most commonly used connection today. Other types of module attachments are also discussed. Special attention is paid to a modular integrating system encompassing a design description. It is emphasized that the efficiency of modular construction depends, among others, on nodal joints used therein.

Keywords: modular construction systems, operational reliability, horizontal and vertical attachments, coupling bolts, tongue and groove connection

The focus is on the building construction technologies using 3D modular building blocks, which are capable of changing their geometric dimensions and shape or remaining unchanged during installation. The paper discusses the main advantages of using 3D modular building blocks for building construction and offers specific examples showing the related process flows. It also shows horizontal and vertical nodal joints and provides a comparison of two options based on certain criteria of installation adaptability.

Keywords: buildings, construction technology, installation and transport manufacturability, horizontal and vertical connections, technological processes

The article discusses the basic principles of information modeling of building systems that underlie BIM technology, and emphasizes the importance of their interaction, since the correctness and efficiency of the BIM process depends on this. The traditional and some basic curves characteristic of the life cycle of goods (products), which have found application in marketing theory, is given. It is noted that each stage of the life cycle of a construction object requires in-depth study and detailed study, since the analysis of scientific publications and the current regulatory document on information modeling revealed their contradiction to each other in some positions.

Keywords: information modeling, principles, life cycle curves, capital construction object, normative document.

The importance of ensuring reliable operation of steel vertical tanks is emphasized. Based on the analysis of a number of scientific publications and regulatory documents, the most characteristic defects are presented in tabular form by groups, the combination of which determines the choice of the method of overhaul or reconstruction of tanks. In accordance with the data given in the table, the most common methods of overhaul and reconstruction of steel vertical tanks are considered.It is noted the need to develop organizational and technological solutions based on information technology, using servers for monitoring through the GLONASS / GPS systems, which will allow, within the framework of monitoring, to detect defects and damage to structural elements in a timely manner during the operation stage and ensure their elimination in order to increase the residual life of vertical steel tanks .

Keywords: residual life, causes of defects, welds, cracks, work methods

The focus of attention is on the possibility of replacing exterior envelope structures for reconstruction of industrial buildings with the aim of increasing the plant areas. The operating procedures are shown alongside the material characteristics ensuring energy efficiency of reconstruction. The paper underlines that the justification of the optimal choice of a process setup / technology solution is an important stage in building reconstruction.

Keywords: three-layer envelope structures, fiber-reinforced foamed concrete units, composite foams, insulating properties, lightweight, efficiency

The paper justifies the relevance and reviews the issues of energy efficient reconstruction of a construction system at various lifecycle stages, underlining that reconstruction needs to be viewed as a separate phase of the property lifecycle. Despite the fact that construction systems are static, all lifecycle stages are dynamic and require complex control. The diagrams are provided to show the building’s lifecycle and the process of stagewise supervision of energy efficient reconstruction by the client.

Keywords: lifecycle, stage, phase, target system, process layout/structure, performance monitoring

The paper highlights the importance of the contingency-focused development of organizational and technological solutions for strengthening reinforced concrete columns based on multiple criteria. The main criteria for optimal technology selection are identified, and the algorithm for the performance of works is presented. The complexity of selection unaided by computerprograms is brought to notice.

Keywords: strengthening of columns, multiple criteria, optimal technology selection, structuring, expert reviews, performance algorithms

The paper underlines the need for use of composite and nano-materials in place of natural materials, which is explained by depletion of global resources and increasing environmental pollution. This is why the focus is currently shifting toward the use of a composite material – porous artificial wood (PID-IV) – developed by the Irkutsk State University for making framework systems required to strengthen rectangular structural elements of buildings and structures. The framework system in question has a deck made of PID-IV. Further, the structural test was carried out in line with the effective regulatory documents, and the use of the suggested framework system was substantiated.

Keywords: composite material, porous artificial wood, formwork deck, design, structural test

The paper summarizes the most common trenchless technologies among the variety of pipeline reconstruction methods which are implemented without destroying old pipelines. It demonstrates the key benefits of the methods under review as well as their principal deficiency. The significance of these technologies, according to the author, is associated with environmental safety and economic efficiency they assure for construction works performed under unstable soil conditions as part of dense urban development. Special attention is given to such relining methods as Swagelining, Upex, Rolldawn, and U-Liners, and more light is shed on innovative technologies, such as GFK-liner (Germany) and Insituform (Great Britain). It is emphasized that the pipeline relining methods discussed in the paper, along with their undisputable strengths, have certain deficiencies, primarily related to a decreased throughput capacity of pipelines. This is why the need for use of nano and composite materials to line the inner space of a reconstructed pipeline should be made a priority.

Keywords: pipeline, relining, technology, method, fiberglass sleeve, polyethylene pipe, sliplining, pushing, composite material, environmental safety

This part of the paper focuses on individual areas of survey of trenchless technologies for renovation of pipeline systems. It underlines the relevance of the technology and maintains that the choice of any specific work method should be based on economic as well as environmental and technological criteria. It describes certain performance techniques and deals more closely with the pipeline replacement methods featuring hydraulic rod-type destroyer, pneumatic splitter, and rope winch. It is noted that the technologies in question help save material and labor resources and reduce economic costs through optimized timelines and earthwork scopes. Also, trenchless technologies, despite their technological constructability and environmental friendliness are shown to require further improvement in order to minimize adverse impacts on the lithosphere and atmosphere.

Keywords: pipeline, renovation, technology, method, replacement, rod-type destroyer, pneumatic splitter, rope winch, benefits, environmental safety

This article focuses on the basic materials and finished products, traditionally used for the device translucent roofs. are those materials, which are more in demand in today's market of translucent coatings on the basis of the analysis of domestic and foreign sources. Identifies the main characteristics of materials, advantages and disadvantages, depending on the method of producing glass, are the main features of the classification of laminated glass. The article will be a logical extension, which will be considered innovative materials for the device translucent roofs of sports facilities.

Keywords: Glass polished, reinforced, toughened, laminated, types of laminated glass, glass block feature