The article is devoted to the early design and social activities of the extraordinary French architect Charles-Édouard Jeanneret known as Le Corbusier (1887–1965), who is considered to be one of the founders of European Functionalism. His first design and pictorial works are considered together with his trips to Western Europe and the Middle East. This experience helped the architect to create his first conceptual versions and models of the modern architecture, which will be described in our further works.

The paper studies A.F. Vtorov & Sons retail buildings constructed in Siberia at the end of the 19th and beginning of the 20th centuries. The town-planning, architectural, spatial and style characteristics of buildings are considered. The safety and use of these buildings are analyzed. The importance of A.F. Vtorov & Sons retail buildings is determined for preservation of the history and architecture of Siberian cities. The low level of study of retail buildings of the Siberian merchants determines the relevance of this paper.

Research methods: The critical analysis of the literature and the comparative architectural analysis. Theoretical scien tific works concerning the history and architecture and the field study conducted by the authors in 2018–2020.

Practical implication: The obtained results can be used in lectures, reports and messages on the history of the Siberian architecture. Originality/value: The architectural heritage of A.F. Vtorov, who opened retail buildings in thirteen Siberian cities.

Purpose: The article describes the principles of territorial placement of children's and youth football academies in the largest cities.

Design/methodology/approach: The architectural and planning organization of football academies, which are the most important component of the professional training of football players in football clubs. The principles of the academy formation as a multifunctional center with a full immersion of students in the educational process. The relevance and need for the appearance of such football academies in the largest cities of Russia.

Research findings: The inclusion of football academies in the largest cities is identified, the main types of training are determined, based on the analysis of such facilities in Russia, Europe and South America.

Practical implications: The youth football academies can be arranged on the city periphery.

Purpose: Description of the building architecture in the village of Bogorodskoye in the middle Ob region. The emergence of the village, its planning and architecture of individual objects are studied. The low level of study of the historical and cultural heritage of the Tomsk region villages as well as the problem of preservation of historical settlements determines the relevance of this paper.

Research methods: The critical analysis of the literature and the comparative architectural analysis

Practical implication: The obtained results can be used in lectures, reports and messages on the history of the Siberian architecture. Theoretical works of scientists, historians and architects concerning the architecture in the village of Bogorodskoye, and field research conducted by the authors in 2021.

Originality/value: The historical and cultural heritage of the Tomsk province settlement is not previously studied and published. It is shown that Bogorodskoe village has a rich history and great historical, cultural and natural potential. In this connection, it is necessary to pay attention to preservation and development of this historical settlement founded at the beginning of the 18th century.

Public transport is not only an element of a city ensuring the territorial integrity, but also a factor that significantly affects the quality of the urban environment. Improvement of the public transport system and optimization its types make it possible to rebuild the urban space, providing territories for public, recreational and other functions of the city. The transport infrastructure in the urban environment without these functions results in negative consequences.

The aim of the work is to identify the advanced trends in the organization of the public transport system based on the experience of cities with a high level of urban comfort.

It is shown that without the interaction with external and internal components of the urban and transport systems, the infrastructure of public transport cannot be considered, since transport becomes a competitor for land resources for pedestrian, cycling infrastructure and landscaping. It is found that the optimization of the transport system must be oriented towards the accessibility of urban areas at any time, expanding pedestrian and green areas and reducing the negative impact on the urban environment.

Purpose: The society development is characterized by changes in the technological structure, that make necessary to revise the existing solutions that affect all areas of the national economy in general, and the construction industry, in particular. Due to the increased requirements for comfort, safety and economy of the living environment, it is expedient to transform the urban planning solutions. In this regard, the aim of this paper is to study the organizational aspects of the territory development, paying special attention engineering and reengineering.

Materials and methods: A retrospective analysis is used to perform the classification of services and works. Special attention is paid to the organizational aspects of engineering and the life cycle of urban planning solutions. As a hypothesis, it is assumed that the most effective solution of the society problems of comfort and safety of buildings, is reengineering based on the synthesis of the sustainable development and risk-based approach. Research implications:

Engineering in construction is defined. Reengineering of urban planning solutions is shown as well as the possibility of synthesizing the concepts of sustainable development and risk-based approach. The dynamics of changes in the parameters of individual elements may not coincide with the nature of changes in the overall urban planning decision, which provides the emergence of areas of dangerous and uncomfortable living environment. This requires modernization of technical solutions or restoration of their material form, which is the subject of reengineering, which can be distributed over the life cycle of the urban planning solution and attributed to the land development.

Purpose: Exploration of military towns as one of the components of military strategy of the cities of Omsk and Novo-Nikolaevsk in the 19–20th centuries.

Design/methodology/approach: Archival and literary sources, buildings of the military department, quite autonomous in Siberian cities corresponding to all functional purposes.

Research findings: The influence of the militarystrategic plans of the Russian Empire on the spatial development of military-strategic aspect of construction of barrack complexes in urban development.

Practical implications: The research results can be applied in further study of military towns in Omsk and Novo-Nikolayevsk Originality/ value: Research results show the history of construction and architecture of military buildings of the 41st, 43rd, 44th Siberian Rifle Regiments, which were part of the Omsk Military District (Siberian Military District from 1899 to 1906) and stationed in Omsk and Novo-Nikolaevsk.

The of direction and style terms are of great importance in architecture and art history. The same names may have sometimes a completely different meaning. Classicism as one of the main trends in world architecture and art is now quite freely interpreted by different authors, which results in inaccurate definitions of architectural style of an object and the time of its construction. All this creates certain difficulties in studying not only historical buildings, but also their restoration or reconstruction.

The article raises several questions related to the direction style. The first is the origins of the style that spread throughout Europe and Russia since the mid of the 17th century and continues today. Both classicism and its architectural styles require clarification and understanding. The second issue concerns the architecture and development of Siberian cities. The third question describes the influence of classicism on urban planning in West Siberia.

The paper deals with the bicycle center infrastructure in a city, which becomes popular every year, but is not yet studied properly. Little attention is devoted to the spatial development for two-wheeled vehicles, so there are many problems to be discussed and solved.

The purpose of this paper is to determine the types of bicycle centers in the structure of a city, from the main and central to regional and peripheral that connect all urban areas. Moving along the bicycle paths from home to a large bicycle center and back to home, one can communicate in bicycle centers. Less functional peripheral centers provide repair services, bicycle rental and small recreation. The city of Rostov-on-Don is taken as an example.

The following parameters are determined: optimum distance between bicycle centers of different types, their functional content, bicycle center location in the city. In the future, it is possible to arrange such centers in any city due to their unification.

The model of the bicycle center network is proposed for the city of Rostov-on-Don, that are characterized by different area and multifunctional purposes for each district to attract people. The main bicycle center includes sports grounds, bicycle track, rock climbers, skate park, gyms, ski jumping hall and other sports facilities. Roof-top bike trails, amphitheater with a street stage, art spaces, go-karting can be arranged on the territory of these centers.

The paper presents the experimental results of strength and deformability of reinforced concrete slabs on yielding supports arranged along the perimeter under the dynamic loading. Crushable ring-shaped inserts deforming at the elastic, plastic and curing stages are considered as yielding supports. The displacement, velocity and acceleration are evaluated depending on the deformation stage of yielding supports. The high efficiency is shown for the use of yielding supports, which leads to a significant reduction in the structure displacement, strain, and stress.

Today, the interest in wooden structures is being increased mainly because wood is an environmentally friendly material. In this regard, quite new wooden materials are developed between the 20th and 21st centuries. Improved are the methods for joining wooden elements and joints of structures. The paper presents the experimental studies of the sandwiched coating consisting of two frame work blocks, and nodal connections under the static load. It is shown that the stress distributes in the coating and on the surface of the nodal connections. The stresstrain curves are suggested for the nodal connections and structural elements of the coating.

The paper presents the strength analysis of cast-in-place and precast structures in accordance with regulatory documents, which require clarifications, since the properties of such structures distinguish them from conventional reinforced concrete structures. These properties include the beginning of the deformation process, ultimate strain, physical properties, and others. The strength analysis of cast-in-place and precast structure is conducted with regard to these properties.

The proposed analysis is based on the load-bearing capacity exhaustion of deformed concrete or reinforcement and allows considering the different time of involvement in the deformation process of cast-in-place and precast structures as well different stress and strain properties of concrete. The experimental data are in good agreement with theoretical calculations.

The use of concrete foundations on a natural subgrade of brick buildings with a spatial cross-wall structural system can lead to its ultimate limit and elastoplastic states along the perimeter and, as a consequence, unallowable soil deformation and movement. The paper proposes to eliminate ultimate limit and elastoplastic states along the perimeter of concrete piles through the replacement of the foundation slab by the combined piled-raft foundation. The finite element modeling of the stress-strain state of the concrete foundation and the building superstructure of the base-foundation-building system is performed in the MicroFe software package allowing to appropriately estimate this state in real geotechnical conditions. According to calculations, 46 % of the vertical load of the building is taken by concrete piles along the perimeter, and 54 % of this load is taken by the concrete foundation. The use of the combined piled-raft foundation allows eliminating unallowable soil deformation of the foundation and provides meeting the standard requirements.

Purpose: The aim of this paper is to predict the earthquake resistance in strengthening the subgrade soils of structures. Numerical simulation of the total increment of seismic intensity during the artificial transformation and strengthening of subgrade soils based on geomechanical modeling.

Research methods: Classical mathematical methods for modeling subgrade soils in a plane nonlinear problem.

Originality: A new approach is developed to determine the total increment of seismic intensity using the ratio between the subsidence values of building foundations and structures before and after soil strengthening. The paper presents the prediction results of changes in seismic resistance of real objects, based on engineering and geologi cal surveys and numerical computer models. It is shown that due to the transformation of subgrade soils, the earthquake resistance can be reduced by more than 0.5 points.

Practical implication: This technique can be used to adjust the score for individual objects and map the boundaries of seismic zones.

The use of concrete foundations on a natural subgrade of brick buildings with a spatial cross-wall structural system can lead to its ultimate limit and elastoplastic states along the perimeter and, as a consequence, unallowable soil deformation and movement. The paper proposes to eliminate ultimate limit and elastoplastic states along the perimeter of concrete piles through the replacement of the foundation slab by the combined piled-raft foundation. The finite element modeling of the stress-strain state of the concrete foundation and the building superstructure of the base-foundation-building system is performed in the MicroFe software package allowing to appropriately estimate this state in real geotechnical conditions. According to calculations, 46 % of the vertical load of the building is taken by concrete piles along the perimeter, and 54 % of this load is taken by the concrete foundation. The use of the combined piled-raft foundation allows eliminating unallowable soil deformation of the foundation and provides meeting the standard requirements.

Electroplating plant sewage is characterized by high concentration of metals, suspended solids, acids, alkalis and other contaminants. The irregular inflows, low pH values and specific sewage composition complicate its treatment. The main treatment methods include chemical precipitation, ion exchange, chemical and electrochemical oxidation, flotation, filtration and membrane separation. The paper proposes a possible variant of wastewater treatment in a small electroplating plant. The proposed flow diagram includes sedimentation of polluting substances with sodium hydroxide and oxidation with anolyte. The method results in a 88.9 % reduction in chemical oxygen demand, 99.5 % reduction in suspended solids, 99.8 % reduction in iron, 95.7 % reduction in surfactants, and 99.9 % reduction in copper ions. The pH value of the treated water is 7.8 and matches the value of a slightly alkaline environment.