33407 2304-6295 Construction of Unique Buildings and Structures 8 35 2015 1-71
RAR RUS 7-23 Peter the Great St. Petersburg Polytechnic University Bulatov Grigoriy gybulatov@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Voronina Natalia tata_101@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 The impact of soil plug on optimize tubular pile The article considers the possibility of optimizing the consumption of materials for steel pipe piles immersed with an open lower end. The calculations were performed with the influence of the soil plug. Optimization shall be understood to mean the appointment wall thickness of the pile satisfying equal strength. It was calculated pile capacity of different immersion depths. It was calculated stresses in the cross-sections of the piles. The stresses checked by strength theory. It was calculated wall thickness of strength balance pipe pile and material savings achieved optimization. Reached the following conclusions: 1. Conducted in this article calculation taking into account the pressure of the soil plug suggest that optimization of steel tubular piles by materials consumption ensuring full-strength possible; 2. Stresses in the material pile after optimizing the thickness of its walls have been checked on the relevant theory of strength; 3. The main result of this paper is the possibility of saving the basic building material of the pile under the condition of its strength balance . Moreover optimization is most effective for a shorter length of the pile. 10.18720/CUBS.35.1 69 friction pile tubular pile optimize of foundations strength balance pile soil plug self-closing https://unistroy.spbstu.ru/article/2015.35.1/ 1_voronina_35.pdf
RAR RUS 24-35 Peter the Great St. Petersburg Polytechnic University Alyabyeva Darya d.alyabyeva@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Reinforcing of large gas-concrete panels from an autoclave An emergency conditions report is used as a case study of the destruction of gas-concrete panels. An expert conclusion states that the destruction of the wall panels was caused by a regulation violation of anti-corrosion coating of rebar cages in cellular concrete structures and the lack of quality control of wall panels at the manufacturing facility. This caused the increased corroded material build up. In the case study, the circumstances are considered from a different angle than in the independent expert’s report. The study considers a version of the cellular concrete wall panel destruction caused by micro-cracks developed as a result of the violation of the thermo-moist regime which led to "frost weathering": the process of the destruction of a material because of frost heaving of the internal moisture. In order to prevent such effects, DSK-1 has adopted the technology of a two-layer wall type with an "aerated" or "moist" facade system. 10.18720/CUBS.35.2 69 cellular concrete gas concrete autoclave fittings shadows reinforcement https://unistroy.spbstu.ru/article/2015.35.2/ 2_alyabjeva_35.pdf
RAR RUS 36-47 Peter the Great St. Petersburg Polytechnic University Bardin Aleksei kmkbav@gmail.com
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Sudar Olga SudarOlga@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Fire resistance numerical modeling on the example of metal structures This article discusses the problem of the fire resistance modeling of metal structures.The paper deals the validity of the modeling results and their application in practise. The study was conducted in the program complex ANSYS. The aim of the work was to determine the future tasks of modeling such as expandable fire protective coatings. 10.18720/CUBS.35.3 69 numerical modeling fire resistance ANSYS metal structures structural fire protection https://unistroy.spbstu.ru/article/2015.35.3/ 3_bardin_35.pdf
RAR RUS 48-59 Peter the Great St. Petersburg Polytechnic University Teplova Zhanna zhanna-t@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
 Combined and monolithic overlappings of "MARKO" system The review of the main characteristics of combined and monolithic overlappings, the analysis and synthesis of the available information is presented in article. Application areas are considered, their merits and demerits are presented. Information on the main producer of combined and monolithic overlappings is also provided in Russia. During the further work and development their production will gain broader application and distribution in the Russian market. Materials of article are based on the real photographic materials provided from personal archive of the company. 10.18720/CUBS.35.4 69 overlappings reinforced concrete combined design monolithic design timbering fittings https://unistroy.spbstu.ru/article/2015.35.4/ 4_teplova_35.pdf
RAR RUS 60-71 Peter the Great St. Petersburg Polytechnic University Grishina Olga olgasergeevna2009@yandex.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Pestryakov Igor pestr47@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Korsun Artem korsun_av@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Peter the Great St. Petersburg Polytechnic University Zalata Ekaterina ekaterinazalata@gmail.com
195251, Россия, г. СанктПетербург, Политехническая ул., 29
 Peter the Great St. Petersburg Polytechnic University Fidrikova Anastasia nastyafidry@gmail.com
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
 Thermal characteristics of friable insulation materials depending on the humidity in the example of "Fiberteks" The humidity increase of the thermal insulation material, as well known, raises value of the thermal conductivity and reduces the overall thermal resistance of buildings. The article presents the thermal conductivity of insulation material on an example of the thermal insulation material  "Fiberteks". This information was obtained experimentally: 0,022; 0,031; 0.092 W/mK (density of the material is 30kg/m3 and humidity is 0%; 12%; 23%. The dependence of thermal conductivity and the material density were identified. Also the reduced resistance to heat transfer for the three wall structures was calculated. "Fiberteks" was presented with different humidity: W = 6%, W = 10%, and W = 23%. As a result of the calculation we analyzed the dependence of thermal resistance to heat transfer and humidity of "Fiberteks": by increasing the humidity content material‘s ability to thermal resistance decreases. Because of this the overall thermal resistance of the enclosure also decreases. 10.18720/CUBS.35.5 69 thermal insulating materials ecowool humidity thermal conductivity thermal resistance to heat transfer https://unistroy.spbstu.ru/article/2015.35.5/ 5_grishina_35.pdf