75504 2712-8172 5 15 2010 1-52

RAR RUS 7-11 56227381900 0000-0003-2673-4566 Peter the Great Saint Petersburg Polytechnic University Nemova Darya darya.nemova@gmail.com

Polytechnicheskay, 29

Ventilated facades: review of main problems The design of ventilated facades becomes more and more popular.Ventilated facades are installed on erected and reconstructed public, office and residential buildings. In this article the basic problems relating to the ventilated facade system are considered. The design, installation process, thermotechnical properties, fire safety, economic efficiency are considered. The purpose of the article is the prevention in practice the most often errors which arise in time of installation, operation and dismantle of such systems. After the analysis following basic problems of systems with ventilated facades have been allocated: calculation of necessary air gap; selection of qualitative materials and installation; fire safety; maintenance of required hermal resistance. Application of  ventilated facades systems for warming of buildings and increasing of their power efficiency demands the thought over and complex approach. Such systems are not so economic, energy effective and durable as it is considered to be. 10.18720/MCE.15.3 ventilated facade heat insulation energy effeciency air gap https://engstroy.spbstu.ru/article/2010.15.1/ nemova_ventfasady.pdf

RAR RUS 12-15 Peter the Great Saint Petersburg Polytechnic University Orlov Danil danil.orlov@gmail.com

Polytechnicheskay, 29

Monolithic constructions made of light nanoconcrete by the example of 5-story multilayer parking In the article use of innovative material - lignt nano-modified concrete - in construction is considered. By the example of parking building the economical efficiency of nanoconcrete use. Calculation of 5 building models in program SCAD was made for that. Based on the results of this work recommendations for effective use of the material are given. 10.18720/MCE.15.2 nano-modified concrete parking design finite element method monolithic constructions https://engstroy.spbstu.ru/article/2010.15.2/ orlov_nanobeton.pdf

RAR RUS 16-30 "Kitezh" LLC Architecture and Construction Company Zhgutov Vladimir abc.kitezh@gmail.com

St. Petersburg, Russia

Stability of ribbed shells under sustained loads The nature of creep evolution in shell material with time was analised and visually presented (changes of deflections and of stress intensity are shown). It allows to get some regularities of buckling load decrease for different reinforced concrete shells under sustained loads. It would give a possibility to design wittingly firm and stably working shell concrete structures by rational choose of their design factors. 10.18720/MCE.15.7 ribbed shells stability of shells creep evolution buckling load sustained load https://engstroy.spbstu.ru/article/2010.15.3/ zhgoutov_ustoichivost.pdf

RAR RUS 31-37 Peter the Great St. Petersburg Polytechnic University Sokolov Vladimir sva0808@rambler.ru

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

Diagnostics of technical state of building structures using methods of fuzzy-set theory This is a continuation of articles series about methods of technical diagnostics. On basis of diagnostic matrix from first article the technical state estimation for a beam from old city building is conducted. In this case the fuzzy-set theory is used for estimation of technical state. 10.18720/MCE.15.4 technical diagnostics fuzzy-set theory diagnostic matrix https://engstroy.spbstu.ru/article/2010.15.4/ sokolov_diagnostics.pdf

RAR RUS 38-43 Goshka Leonid tookola@mail.ru About energy saving and increase of energy efficiency in buildings In the article the analysis of National law №261 "Energy saving and increase of energy efficiency..." from the point of view of building systems is given. The recommendations for modernization of heat, ventilation and air conditioning (HVAC) systems taking into account energy efficiency requirements are given. 10.18720/MCE.15.6 energy efficiency energy saving building systems climate systems HVAC https://engstroy.spbstu.ru/article/2010.15.5/ goshka_energysaving.pdf

RAR RUS 44-48 Peter the Great Saint Petersburg Polytechnic University Zagorskaya Anna ztp2@yandex.ru

Polytechnicheskay, 29

Key building sites of Saint-Petersburg from the point of view of acoustics of buildings When constructing every building or erection it's important to take into consideration the acoustics of halls and noise in the rooms and observe the regulations.The article is devoted to the analysis of the observance of these regulations on first-rate projects of Saint-Petersburg: Second stage of Mariinsky theatre, West high-speed diameter, Quay of Europe. 10.18720/MCE.15.5 building acoustics acoustics of halls noise https://engstroy.spbstu.ru/article/2010.15.6/ zagorskaya_acoustics.pdf

RAR RUS 49-52 Peter the Great St. Petersburg Polytechnic University Lundyshev Igor finans@sovbi.spb.ru

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

Experimental investigation of technologie of pipelines thermal protection by monolithiс foam concrete As the technology of heat insulation with using monolithic foam concrete is relatively new, after preliminary calculations, and before mass use by a group of scientists and engineers, which included the author of articles, under the guidance of Ph. D. V.D. Vasiliev< in 2007-2008 were conducted field experiments. According to the proposed technology, the insulated pipe centralizers are installed on which is mounted a removable or fixed timbering. The ends are sealed, and through technological holes in the formwork is filled with solid foam concrete. The technique is to perform a thermal finite linear and curved sections of the pipeline monolithic foam concrete of different densities using different materials and permanent form of various materials centralizers. At the same time ease the implementation rated insulation antivandal shuttering its strength and quality. This series of experiments, was and is far from the latest experiments in this field. However, it was after these experiments revealed the following, the most popular combinations of formwork and centralizers: - Combination of steel centralizers and steel formwork provides the best protection functions, long service life, very fast and technically easy going on the pipeline is suitable for reconstruction, and for the construction of new pipelines. - Combination of steel centralizers and design of metal mesh and tar paper provides good protective function, long service life, quickly installed on the pipeline is suitable for reconstruction, and for the construction of new pipelines.  - Construction of centralizers of hollow PVC products can not be used to heating mains and steam but may find its application in the insulation of pipeline with the temperature of the working body is not more than 50 C.  - Construction of centralizers of SPE disks have shown themselves well in the course of the experiments, and during follow-up within 180 days showed no changes in the geometry of centralizers, rot and mildew. But since there are fears that the periodic changes of temperature in real heat conductor such phenomena are possible, the construction of a disk of SPE was not used in further experimental shading, there is not data on the behavior of such structures, and the direction needs to be further developed. 10.18720/MCE.15.1 monolithic foam concrete pipe centralizers heat insulation formwork of pipelines https://engstroy.spbstu.ru/article/2010.15.7/ lundyshev_izolyaciya.pdf