33407 2304-6295 Construction of Unique Buildings and Structures 4 43 2016 1-140
RAR RUS 7-17 Donbas National Academy of Civil Engineering and Architecture Belous Alexey us28@ya.ru
2, Derzhavin str., Makiyivka, Donetsk region, Ukraine, 86123
 Donbas National Academy of Civil Engineering and Architecture Overchenko Mira miro4ka8@mail.ru
2, Derzhavin str., Makiyivka, Donetsk region, Ukraine, 86123
 Heat loss through the building unheated basement This article describes how to heat the building through the basement in the winter season. The factors which influence the basement heat loss and the design requirements for protective structures of basements are provided. Two methods of calculating heat losses of unheated basement rooms are presented. The first method of calculation assumes that all surfaces in contact with the soil array are divided into zones with coefficients taking into account the effect on the heat loss through the ground for the entire period of heating. The second method calculates the monthly heat loss from the building through the surface in contact with the ground. According to these methods, calculations and comparative analysis of methods for calculating the heat of basements are provided, as well as pros and cons of the above techniques are established. The analysis of the boundary conditions of numerical simulation of temperature fields of the soil mass is held. While building a two-dimensional temperature field to determine the linear heat transfer coefficient significant differences in the simulation results are found, which depends on the boundary conditions of the array of soil at depth. The work sets geometric parameters of the simulation of temperature fields and heat flux for the node with a soil file, but without providing data on the quantitative characteristics of the heat flux on the vertical of the soil mass. 10.18720/CUBS.43.1 УДК 697.148 ground node; thermo; energy efficiency; heatlosses; calculation procedure; https://unistroy.spbstu.ru/article/2016.43.1/ 1_belous_43.pdf
RAR RUS 18-33 Peter the Great St. Petersburg Polytechnic University Gilemkhanov Rustam asf-rust@ya.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Akhatuly Alisher akhatuly_alisher@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Evaluation of stress-deformed state of the foundation slab to karst sinkholes in SCAD Office The article deals with the influence of karst processes on the deflected mode of the base plate. The urgency is because of frequent cases of accidents on the facilities constructed in the karst areas due to incorrect calculation of the effect of karsts on the bearing capacity of the building. The basic models of calculation of the soil bases and structures on stress and precipitation are described. The problems of determining the location of karst dips are discussed as well as the method of determining the estimated diameter of karst, depending on the category of it. The process of entering the boundary conditions for the Foundation slab on the bilinear basis model using satellite "Cross" is shown. The article also shows how module "Variation patterns" in SCAD Office for the multivariate location of karst dips can be used. The calculation of deflected mode of the Foundation slab without and with the account of karst is processed. Based on the obtained data, a comparative analysis of deflected mode according to the criterion of the required diameter of the karst is held. The conclusion is about effects of karst processes on the deflected mode of the base slab and the demand for their proper tasks. 10.18720/CUBS.43.2 УДК 69.04 karst; karst processes; bilinear model; the estimated diameter of the karst; deflected mode; foundation slab; numerical simulation; SCAD https://unistroy.spbstu.ru/article/2016.43.2/ 2_gilemhanov_43.pdf
RAR RUS 34-45 Peter the Great St. Petersburg Polytechnic University Miftakhova Dinara dinara.miftakhova@gmail.com
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 G-2929-2018 56227381900 0000-0003-2673-4566 Peter the Great St. Petersburg Polytechnic University Sergeeva (Nemova) Darya Viktorovna darya0690@mail.ru
St. Petersburg, Russian Federation
 Construction of the air gap with variable width in the double-skin facades It is hard to imagine the modern market of enclosing structures without the double-skin facades (DSF). Double-skin facades have established themselves as a multifunctional system capable to improve the energy efficiency of buildings. The air gap under the facing is responsible for allocating the moisture from the construction. In the design of modern buildings, special solutions for enclosing structures can be applied. For example, the combined facades which includes DSF and a glass curtain wall. As a result, the air gap with variable width is formed. The purpose of this work is hydraulic calculation of the structure of the vertical air gap with variable width. It was proved that loss-reducing effect in air gap with variable width fails when building has large height and insufficient length of cantilevers. It was also proved that in the small gap free-convective flow is impossible. The results of this work may be found as practical application in the design of similar buildings and analysis of free-convection flow in the air gap of DSF. 10.18720/CUBS.43.3 УДК 692.232.45 hydraulics; double-skin facade; free-convective flow; the vertical air gap; the variable width of a gap https://unistroy.spbstu.ru/article/2016.43.3/ 3_miftahova_43.pdf
RAR RUS 46-57 Peter the Great St. Petersburg Polytechnic University Falaleeva Anna annaiva93@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 The impact of unauthorized changes to heating system to heat supply of multistorey building The unauthorized changes to heating system of multistorey residential building pose an actual problem at present. These changes often cause a serious consequences or can destroy the system.The most common type of heating systems in mulytistorey buildings is one-pipe system. It is the most simple type, and the impact of the changes in these systems is bigger, than in another one (for example, two-pipe). In this article tipical unauthorized changes to one-pipe heating system were considered. The most popular chages are replacement of heating devices and pipes, changing the size and the material. The impact of these changes was analysed. 10.18720/CUBS.43.4 УДК 697.352 heating; heat supply; one-pipe heating system; heating appliances; unauthorized changes to project; https://unistroy.spbstu.ru/article/2016.43.4/ 4_falaleeva_43.pdf
RAR RUS 58-72 Peter the Great St. Petersburg Polytechnic University Ivanova Ekaterina kat9304@yandex.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 15730895100 0000-0003-3251-3356 Saint Petersburg State University of Industrial Technologies and Design Gorshkov Alexander Sergeevich alsgor@yandex.ru
St. Petersburg, Russian Federation
 Calculation of energy consumption of the building with the minimum requirements for thermal protection The article explores the object that has 2 stages of construction. Projected houses are identical in heat engineering characteristics and design features. The building is the first phase of construction was built on the minimum requirements for thermal protection. When the first house was built, it was decided to correct the project of the second stage. Project change was due to the increase in the requirements for the thermal protection of the building. The second building is built on the highest standards of insulation and energy saving. The research is to calculate the annual heat energy consumption for heating buildings in the cold and transitional periods of the year before the adjustment of the project and comparing these values with the regulations. It is also in the process of calculating the defined thermal performance building envelopes. The purpose of research is to justify the need to adjust the project to improve energy efficiency. 10.18720/CUBS.43.5 УДК 699.86 Energy efficiency; Energy consumption; heat losses; thermal protection of buildings; reduced thermal resistance; energy efficiency class; heating and ventilation; specific heat consumption; https://unistroy.spbstu.ru/article/2016.43.5/ 5_ivanova_43.pdf
RAR RUS 73-86 Peter the Great St. Petersburg Polytechnic University Gilemkhanov Rustam asf-rust@ya.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Braila Natalya nashi-n-v@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 The comparative characteristic of sources in financing construction project The stability of the financial and economic indicators of development companies is under threat in conditions of economic crisis. As a consequence of influence of financial uncertainty and increase risks, notice the rise of bankruptcy of construction companies and the fall in economic growth of the industry as a whole. A significant difference caused by external causes (the fall of demand for real estate, decrease of the solvency of the population, volatility in the market) and internal (poor financial management). This article deals with an internal problem, and exactly the right choice of financial strategies of investment and construction projects included in the portfolio of development companies. In this paper, the financial activities of Russian development companies investigated. Problems of this development companies found with raising funds to their projects and proposed solutions to these problems. In the study the analysis of the characteristic of investment and construction projects, financing, revealed the advantages and disadvantages of these sources. 10.18720/CUBS.43.6 УДК 69.003.13 construction investment projects; efficient construction projects; financial management; sources of financing; development; bank loan; https://unistroy.spbstu.ru/article/2016.43.6/ 6_gilemhanov_43.pdf
RAR RUS 87-102 Peter the Great St. Petersburg Polytechnic University Nedviga Ekaterina nck@bk.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 57194445595 0000-0001-8517-9705 Peter the Great St. Petersburg Polytechnic University Vinogradova Natalya Anatolevna natasha-vinograd@mail.ru
St. Petersburg, Russian Federation
 Systems of prefabricated monolithic slabs The article describes systems of prefabricated monolithic slabs (PMS) that have received the most widespread in Russia and in the world. The issue of reducing the weight of building structures is an important issue of structural science. Systems of the prefabricated monolithic constructions correspond to the modern trends, but require special attention and scrutiny. Analysis of advantages and disadvantages of the prefabricated monolithic slabs is shown in the article. In addition, the problems of use were identified and designated. It are required to study in detail for supporting free use of PMS in the buildings and structures. 10.18720/CUBS.43.7 УДК 69.07 refabricated-monolithic slabs; structural elements; energy efficiency; efficiency; analyses; https://unistroy.spbstu.ru/article/2016.43.7/ 7_nedviga_43.pdf
RAR RUS 103-116 Peter the Great St. Petersburg Polytechnic University Aznabaev Askar askar.spbstu@gmail.com
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Ovsyannikova Alla ovsyannikova93@gmail.com
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Povzun Anastasiia triksi_04@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Gaevskaya Zlata gaezlata@yandex.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Assessment of straw construction technologies in terms of thermal efficiency of enclosing structures Sustainable construction nowadays requires the use of environmental friendly materials with high rate of insulation. Straw construction presents some advantages such as renewability with low energy input, recyclability, CO2 storage, and local availability that implies short distribution cycle. However, before the introduction in the construction industry, attention needs to be paid to the construction technology using such natural materials. In this paper there were developed elements of enclosing structures for two technologies of straw frame building; was done thermal modeling of potentially weak assembles of building envelope; were calculated R-values and then compared with normative indexes; was evaluated efficiency of usability two technologies of low-raise building in cold and wet conditions of St. Petersburg. 10.18720/CUBS.43.8 УДК 69.001.5 natural materials; straw; straw bale building; energy efficiency; green construction; thermal analysis; enclosing structures; https://unistroy.spbstu.ru/article/2016.43.8/ 8_aznabaev_43.pdf
RAR RUS 117-140 57189359179 0000-0002-1030-8370 Peter the Great St. Petersburg Polytechnic University Tarasov Vladimir Aleksandrovich vtarasov1000@yandex.ru
St. Petersburg, Russian Federation
 Peter the Great St. Petersburg Polytechnic University Baranovskiy Mikhail bm_y@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Redkin Andrey redish132132@yandex.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Sokolov Evgeniy evgeniy.sokolov@nccr.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Stepanov Alexandr a.s.stepanov1@gmail.com
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Seismic isolation systems The factor, which needs to be considered, especially for building in seismic-active areas is the ensuring of aseismic stability for buildings and constructions. Nowadays, one of the main approaches to increase of aseismic stability is use of various systems of aseismic isolation. It is not always advantageous and rational to increase aseismic stability of the building or the foundation under the equipment by simple increasing the strength of materials. Rising of durability of constructions leads to weight gaining and, as a result, rising in inertial seismic loadings. Different types of aseismoinsulators are investigated in this article, as the most common decision for reaching necessary aseismic stability in industrial and civil engineering. 10.18720/CUBS.43.9 69 seismic isolation; seismic isolated buildings and facilities; seismic resistance; elastomeric devices; spring devices. https://unistroy.spbstu.ru/article/2016.43.9/ 9_tarasov_43.pdf