33407 2304-6295 3 42 2016 1-78

RAR RUS 7-16 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 Zimin Sergej zimin_sergei@mail.ru

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

Mid-rise block housebuilding as an alternative to the high-rise microdistrict building in the urban area In article was analyzed the current situation in the field of urban house construction in Russia. The development of residential house building in Russia in the past hundred years was considered. In addition, the main types of residential building are typical to foreign developed countries were determined. It is shown that it is necessary to develop the low-, mid-rise block building to create a comfortable urban area for human habitat. It is necessary to revise current guidelines in the field of design and urban planning and use the experience of advanced countries. Development of the lacking statistical research in this area is required. A comprehensive approach, in other words an interaction of the government, the designer and developer are needed to create a "living, safe, sustainable and healthy" city. 10.18720/CUBS.42.1 УДК 711.581 mid-rise block housebuilding; sustainable development; living city; urban area; urban planning; https://unistroy.spbstu.ru/article/2016.42.1/ 1_povzun_42.pdf

RAR RUS 17-30 Peter the Great St. Petersburg Polytechnic University Komarinskiy Mikhail komarin@cef.spbstu.ru

29 Politechnicheskaya St., St. Petersburg, 195251, Russia

Peter the Great St. Petersburg Polytechnic University Vestnikov Dmitry vestnik92@mail.ru

29 Politechnicheskaya St., St. Petersburg, 195251, Russia

Peter the Great Saint Petersburg Polytechnic University Chervova Nikita nikitoi@mail.ru

Polytechnicheskay, 29

Heuristic planning of investment and construction project using natural resources Briefly reviewed the existing system for planning and project management of some national and foreign firms. It is noted that they often do not meet the specific requirements for the design building organizations. The main attention is paid to the basic capabilities of a specially developed at the Department of construction of unique buildings and structures programs for heuristic optimization of linear schedules construction on PC. 10.18720/CUBS.42.2 УДК 658.28 plan; schedule; investment and construction projects; heuristic; construction; https://unistroy.spbstu.ru/article/2016.42.2/ 2_komarinskiy_42.pdf

RAR RUS 31-60 Peter the Great St. Petersburg Polytechnic University Egorova Evgeniya egorovaes@hotmail.com

29 Politechnicheskaya St., St. Petersburg, 195251, Russia

Peter the Great St. Petersburg Polytechnic University Ioskevich Anton anton-ioskevich@mail.ru

29 Politechnicheskaya St., St. Petersburg, 195251, Russia

St. Petersburg State University of Architecture and Civil Engineering Ioskevich Vasiliy lvasily95@gmail.com

2-nd Krasnoarmeiskaya st. 4, St.Petersburg, 190005, Russia.

Peter the Great St. Petersburg Polytechnic University Agishev Kamil kamil_agishev@mail.ru

29 Politechnicheskaya St., St. Petersburg, 195251, Russia

SPb-Giproshacht Kozhevnikov Vladimir vladimir_kozhevnikov92@mail.ru

Chapaeva st. 15A, St. Petersburg, 197101, Russia

Soil model implemented in the software packages SCAD Office and Plaxis 3D The paper dwells on the definition of structures settlement and provides their comparison. The research was carried out in accordance with the normative technique realized in SP 22.13330.2011. There also were used some software complexes such as SCAD Office and Plaxis 3D to compute value of structures settlement. The report consists of the theoretical foundations of each soil models used in the research. Exactly there were used Pasternak model, the model with variables square coefficients (CROSS) which were implemented in SCAD Office and the linear elastic model, the model elastic-plastic environment (Mohr-Coulomb) implemented in Plaxis 3D. To evaluate the effect of load rate on settlement were considered four versions of loading building spans by ultimate dead load. There was also included the dead load of structures in each version. The efficiency of the results was assessed. 10.18720/CUBS.42.3 УДК 69.04 SP 22.1330.2011; Pasternak model; linear elastic model; model elastic-plastic environment; SCAD; CROSS; Mohr-Coulomb; Plaxis; https://unistroy.spbstu.ru/article/2016.42.3/ 3_egorova_42.pdf

RAR RUS 61-78 Peter the Great St. Petersburg Polytechnic University Bronzova Maria bronzochka@mail.ru

29 Politechnicheskaya St., St. Petersburg, 195251, Russia

AAR-2529-2020 6506030356 0000-0001-6744-9249 Tampere University, Tampere, Finland Garifullin Marsel marsel.garifullin@tuni.fi

Tampere, Finland

Fire resistance of thin-walled cold-formed steel structures There is an increasing demand for cold-formed thin-walled steel structures on the building market nowadays. Owing to the assembly simplicity, materials’ cheapness, high ecological standard, recycling, reuse potential, and other numerous advantages of such structures are widely employed in both office and residential buildings. The temperature of thin-walled structures increases rapidly as a consequence of the high section factor (measurement of the fire-exposed area to the heated volume), which creates the demand for a durable fire safety system, one of the fundamental requirements of the building safety. Although, several sufficient researches have been undertaken, there is still no strict performance-based fire design for cold-formed steel systems due to the lack of data. This paper compiles the existing works on the cold-formed thin-walled structures’ fire performance, including numerical studies and experiments with mechanical and thermal properties of complete structures, purlins, joints (bolted, screwed, nailed, riveted etc.), plates, tubular structures, new calculation methods, new protective materials that are being used, such as intumescent coatings and etc. 10.18720/CUBS.42.4 УДК 1418, 21474 cold-formed steel; frame building; foam concrete; insulation; fire resistancy; https://unistroy.spbstu.ru/article/2016.42.4/ 4_bronzova_42.pdf