The article is devoted to the interior (internal space) of city and manor houses, suburban villas and Palace complexes of Ancient Greece of classical and Hellenistic periods (5^th-1^st centuries BC). Considered are the functional and planning structure, separate rooms for men and women, household premises. Special attention is paid to a decoration of floor, walls and ceilings as well as the household furniture which provides convenient living conditions for the owners, their guests and servants. The important role in ensuring convenient conditions inside residential buildings played their technical equipment (heating, water). A brief discussion concerns the improvement of inner courtyards (peristyles) and home gardens.

The article shows the development of wooden architecture in Western Siberia, which greatest blossoming was observed in the 19-20^th centuries. In this period, the creative potential of builders and architects was revealed. The wooden architecture of the 19^th century received a new interpretation in terms of the Russian style. It is expressed in the use of Russian folk art and creation of new forms of decor. The neo-Russian style is widely spread in many of Siberian cities. It is shown that wooden architecture of that time used the projects of professional architects.

The paper presents the environmental approach to the transformation of the environment which implies a consideration of possible changes of all objects and processes which define the conditions and stability of created environment. This approach requires a concurrent execution of ecological (sanitary and hygienic, moral and ethical, aesthetic, and ethnocultural), economic and material-and-technical restrictions. The environmental approach is ecological and its appliance results in improving the stability of interaction between human beings and the environment.

The paper deals with the proportional dependence between the space planning and cost parameters of second homes situated within the city boundaries and its population. It is shown that many of garden areas located along the highways, are purchased by businessmen for the organization of a roadside business. The causes of the increase in the cost and timing of new construction instead of demolished second homes are described in this paper.

The paper presents a computer simulation of masonry strength studied in the framework of continuum mechanics under impact load. The weight of 1000 kg was dropped from the height of 2 m using the impact drop machine. The masonry fragment consists of three layers of bricks separated with sand and cement mortar 1 cm thick. Two layers are made of two full bricks, whereas one layer is made of a full brick and two halves of a brick.

The paper presents the assessment of the technical condition of the former building of the Tomsk parochial secondary school for girls. The building is an architectural monument, its operation period is more than 100 years. Its design and executive documentation is practically non-existent, its functional purpose has changed over time, the regulatory design base and the strength and deformation characteristics of materials also changed. At the time of inspection, the building has significant deformations caused by stresses, exposure to temperatures and changes in the properties of the soil base. In addition, in 2015, a fire broke out in the building and since then it has not been operated and has no a thermal circuit due to lack of conservation. The paper presents the results of restoring the structural solution of the building, examining the technical condition, laboratory tests of material and ground parameters, static and verifying calculations of building structures. Each type of work describes the main features and nuances that arise when they are performed.

The paper presents flexure tests of 10 T-beams, their methodology, specimen fracture, the investigation of prestressed carbon fiber-reinforced plastic (CFRP) layers, T-beam carrying capacity and rigidity subjected to a combined reinforcement with presetressed CFRP and a steel sheet. It is shown that T-beam undergoes flexural fracture and its carrying capacity increased more than by 90 %. T-beam prestressing ranging between 5- 15%, results in the increase in prestress and yield load values and the decrease in the ultimate load. The rigidity has no obvious change before the yield. In presetressing, it increased up to 10-15 %. The values of prestress, yield and ultimate loads increase with the number of reinforced layers. After the yield, the rigidity of T-beam reinforced with two CFRP layers increased twice as compared to that reinforced with one CFRP layer. When the number of CFRP layers is more than two, the rigidity tends to a gradual increase. With the increase in predamage, the yield and ultimate loads linearly reduce. After the yield, the rigidity of T-beam reinforced with two CFRP layers increased twice.

This article presents the experimental research carried out into the efficient surface coatings made of high-elasticity pigments for concrete structures exposed to the deformation due to cracking. In contrast to application fields claimed by the manufacturer, high-elasticity (rubber) pigments can be used in such applications as coloring the exposed surfaces of bearing frame element of a building, i.e. reinforced concrete crossbar; outer layer of the three-layer concrete wall panel. Tests are conducted for the three-layer wall panel coated with a high-elasticity pigment to determine the vapor permeability of the outer layer of the structure. The rationale is shown for a possible use of the high-elasticity pigment both without disturbing the thermal efficiency of the structure and room microclimate. New information is obtained allowing to increase the operational reliability of the considered structures without significant and expensive structural modifications.

The paper presents physicochemical investigations of the structure formation in cement brick provided by high-voltage corona discharge treatment of binder components of hydraulic cements. The effect from the high-voltage corona discharge applied to clinker minerals is evaluated by the X-ray phase, thermal, spectral, and electron-microscopic analyses. It is found that the effect from the high-voltage corona discharge applied to alite modifies the crystallization process, morphology, and the amount of new formations in the hardening system. The effect of dispersion phase of high concentrations is studied in relation to the structure of the corona field and its parameters.

The paper presents investigation results on properties of cement-sand mixture with basalt microfibers modified with carbon nanoparticles. The required compressive strength (30 MPa) of this mixture is achieved when the content of modified basalt microfibers achieves 1 wt.%. In this case, the flexural strength of the mortar is increased by 77.5 %, the shrinkage strain is reduced by 56.2 %, and the wear resistance is increased up to 0.4 g/cm². The developed compositions and енру mortar technology are recommended for the industrial flooring.

The paper deals with air conditioning systems incorporating natural cold sources. New design is proposed for a cold generator. The design and selection methodology is suggested for the number of sections for the three-step cold generator and the thickness of its heat-insulating layer. A nomogram is constructed according to the proposed design methodology and applied to the selection of the air-conditioning system equipment in Chuguevka village, Primorsky Krai.

The paper presents the results of the data collection and statistical processing in relation to the parameters of more than 240 models of modern gas-tube boilers having a two- and a three-way configuration with thermal capacity ranging from 250 to 6000 kW. Using the results of the regression analysis, the derived system of equations is a parametric model of modern gas-tube boilers. A comparison of two- and a three-way configurations of gas-tube boilers shows their difference at equal thermal capacity.

The paper presents the development and testing of the parametric synthesis of hydrotransport heat-supply system. The simulation methods used for the investigation of this system show that the quality and safety control can be provided by setting and adjusting its parameters using the deviation of the estimated values caused by the instability of processes occurred. The obtained results can be used for automation of engineering systems of buildings with a view to improve their energy efficiency.

The high level of traumatism in Russia during working at height has led to the introduction of new regulatory documents on the labor protection. The analysis of the safety regulatory framework for works on flat roofs shows the requirements described are not sufficient for safety precautions. The paper suggests safety precautions for works on flat roofs. It is recommended to introduce the anchor point and anchor line designations for the anchor device into the national regulatory documents for mounting means of protection for working at height.

The article presents a method the temperature and strength control for the concrete ageing in in situ construction of reinforced concrete buildings. A comparison of the laboratory and field observation results obtained using the computerized temperature and strength control and the strength analysis of the concrete ageing detected by the non-destructive testing show a good agreement. This indicates that the proposed method is suitable and allows the most probable control for the concrete strength in time at negative temperatures in in situ construction carried out in accordance with the SNiP 70.13330.2012 ‘Load bearing and wall structures’. As a result, the standard ‘The temperature and strength control for and strength analysis of the concrete ageing in in situ construction’ is designed at Tomsk State University of Architecture and Building.

The paper deals with the effectiveness of hybrid design of bridge span structures based on complex studies. The presented technical and economic analyses shows the application of optimum cross-sections of beams made of various steel grades which operate together with the reinforced concrete or orthotropic slab of the trafficway, cross-sections of span structures. The obtained results can be useful for practical application of bisteel and bisteel-reinforced span structures for spans the length of which ranges from 24 to 200 meters.

With a view to implement the complex development plans on the transport infrastructure in cities, the adopted classification of automobile roads is studied in this paper for the determination of their design parameters and consumer properties. The analysis is given to the street and road network of the Tomsk-city in order to study its availability, quality and safety with regard to the urban planning areas and the distribution of the population in them. For a complex development of the transport infrastructure, it is suggested to correct the existing functional classification of roads and streets in the Tomsk-city. This correction should be provided on the basis of the basic network of arterial streets and roads taking into account the perspective development of territories, forecast of the population dynamics and the level of automobilization.

The paper deals with the practical method of calculating the bearing capacity of weak bottom soil of road embankments. A theory of soil limit equilibrium underlies this method. A direct force action produced by the embankment on the soil represents the pressure with a trapezoid diagram of the normal component. Closed solutions are considered for an ideal-cohesion and weightless bottom soil. Approximation formulas obtained for the general case, are based on results of numerical calculations. The influence of a rigid layer is estimated for the bearing capacity of the bottom soil. Equations are obtained for the limiting pressure of embankment on the weak soil depending on soil characteristics and geometrical parameters of embankment.