75504 2712-8172 7 25 2011 1-119

RAR RUS 3-10 57189360151 0000-0001-6867-4050 West Pomeranian University of Technology Szczecin Orlovich Romuald orlowicz@yandex.ru

al. Piastów 17, 70-310 Szczecin, Poland

Branch of RUE Institute BelNIIS – Scientific-technical Centre Derkach Valeriy v-derkatch@yandex.ru

267/2, Moskovskaya str., Brest, 224017 Belarus

Estimation of masonry mortars strength during stone buildings investigation In this article the analysis of estimation methods of the masonry mortars strength applied in Russia and other countries during stone buildings and constructions investigation was carried out. Advantages and disadvantages of these methods are considered. The new technique of masonry mortars strength estimation is offered. It is based on trials of bored from a masonry body cylindrical samples. It is pointed, that this method is the most universal and informative from all methods considered in this article. The offered testing procedure allows to gain not only a compression strength, but also a shearing strength along horizontal masonry seams. Results of experimental researches of masonry mortars compression strength executed on various techniques are presented. 10.5862/MCE.25.1 a masonry a masonry mortar compressive strength shearing strength https://engstroy.spbstu.ru/article/2011.25.1/ derkach_rastvor.pdf

RAR RUS 11-17 Military engineering-technical institute Kurlapov Dmitriy Military engineering-technical institute Khomich V. Military engineering-technical institute Levanov Aleksandr alex_lev83@mail.ru Method of specific energy for determination mechanical characteristics of structural steel The studies performed in present article are directed on improvement the practical methods of the existing steel structures examination. In particular, the new method for the determination of the mechanical properties of steel structure elements of the existing buildings and structures is offered. It consists in drilling a reference sample, made of structural steel, which have already been defined for mechanical properties of steel, and also the material of investigated structural element with the following determination of specific energy, expended during drilling of channels in the reference sample and in material of the investigated steel structure, in order to the further determination of the strength properties of steel, from which the element is made. The article also presents experimental studies on the determination of strength properties of the structural steels VSt3ps6 and 15HSND, which results have shown the possibility of the determination of strength properties of the investigated material with necessary reliability of the measurements using the proposed method. In particular, there were determined: • yield limit of steel VSt3ps6 and steel 15HSND;  • temporary resistance of steel VSt3ps6 and steel 15HSND. During analyzing the domestic and foreign literature it was found that elements of existing steel structures have reserve strength, which is inevitably formed on the basis of designing logic and normative documents, used in steel structures calculations. It was completely confirmed by experimental tests. 10.5862/MCE.25.2 yield limit of structural steel method; structural steel specific energy device https://engstroy.spbstu.ru/article/2011.25.2/ levanov_stali.pdf

RAR RUS 18-25 Proceq Russia Puzanov A. Peter the Great Saint Petersburg Polytechnic University, PRDI “Venchur” Ulybin Alexey ulybin@mail.ru

Polytechnicheskay, 29

Test methods of corrosion state of reinforced concrete structures The article describes the traditional methods that are used in Russia for testing corrosion condition of reinforcement including peculiarities and disadvantages of it. The new methods of nondestructive testing which are used mainly in foreign countries are overviewed. The principle and advantages of half-cell potential method of reinforcing steel in concrete is described. A new method of nondestructive testing corrosion condition of reinforcement is the method of measuring the electrical resistivity of concrete. The article describes the principal of its application and the factors influencing on the measurement’s result. Data is presented for the practical use of the method during covering inspection of the Kurskiy station in Moscow. 10.5862/MCE.25.3 reinforcement corrosion structures inspection reinforced concrete structure non-destructive testing method https://engstroy.spbstu.ru/article/2011.25.3/ ulybin_korroziya.pdf

RAR RUS 26-32 JSC The B.E. Vedeneev VNIIG Shtengel V. ShtengelVG@vniig.ru JSC The B.E. Vedeneev VNIIG Nedyalkov V. Infared image inspection of ground hydraulic constructions slopes fastening reinforced concrete slabs Non-metallic building structures nondestructive examination methods using is an essential requirement for conducting a technical inspection of existing constructions. The technique of applying the nondestructive examination method for thermal control of one of the most common constructions of hydraulic structures – reinforced concrete fastening slopes of ground facilities (dams, canals, etc.) is considered in this article. The aim of this method is to identify areas of slabs, detached from subgrade. It is shown that the optimal decision includes synchronized analysis of the thermograms and the visible areas of the slopes detachment recording. This decision reduces the number of the thermal field areas false anomalies caused by the local features of concrete surface layer and by background effects. During the results analyzing false anomalies of the constructions thermal field areas must be considered and rejected. These anomalies can be related with the concrete surface layer condition or the proximity of masking factors: water, vegetation, etc. In the example of full-scale 6.8 km long dam examination the false thermograms anomalies were more than 50% from the total number of tested plates. 10.5862/MCE.25.4 nondestructive thermal examination method reinforced concrete fastening slopes slabs detachment subgrade thermogram visible recording https://engstroy.spbstu.ru/article/2011.25.4/ shtengel_teplovizor.pdf

RAR RUS 33-39 Saint-Petersburg State University of Architecture and Civil Engineering Savin Sergey savinsn@gmail.com 26 Central Research Institute Demishin S. 26 Central Research Institute Sitnikov I. Monitoring of unique buildings with using of dynamic parameters according to GOST R 53778-2010 Determination of dynamic characteristics of constructions is now demanded by GOST R 53778- 2010. It is a very important step to achieve safety of constructions. But GOST requirements do not pay attention to peculiarities of test procedures with unique objects. The comparative results of tests and analysis of dynamic characteristics of the constructions of Kroonstad Naval Cathedral being obtained during 2005 – 2009 are represented. It was established that some definite changes resulting in loss of spatial rigidness of the whole building occurred in condition of Cathedral constructions. 10.5862/MCE.25.5 reinforcement corrosion structures inspection reinforced concrete structure non-destructive testing method https://engstroy.spbstu.ru/article/2011.25.5/ savin_dynamics.pdf

RAR RUS 40-44 Saratov State Technical University Zemlyanskiy Anatoliy director@bittu.org.ru Saratov State Technical University Vertynskiy Oleg olvert@bk.ru Experience of localization of faults and cracks in large size tank beds for carbone storage During the last thirty years a bundle of accidents in large size tank beds for carbon storage was fixed. In spite of it there is not any existed method for effective detection of faults and cracks in filled up tank beds. In this article a variety of emergency situations with tank beds for oil products storage was analyzed and new technical decisions were suggested. These decisions are based on usage of devices of nondestructive testing for localization of fatigue cracks in the circumference weld of large size tanks and organization of monitoring of deflected mode of an object by way of finding moment of cracks formation. The devices applied in this method are ultra-sonic thickness gauge and highly sensitive magnetoelastic sensor. The last one was developed by author. This cracks determination method practically allows to find out cracks and defects of I, II and III type. It also allows to decrease financial, temporal and technological investments for investigation of tank beds for oil products storage without oil products removal and completely prevent emergency situations. 10.5862/MCE.25.6 tank beds for oil products storage complex investigation faults cracks ultrasonic detector https://engstroy.spbstu.ru/article/2011.25.6/ zemlyanskiy_rezervuary.pdf

RAR RUS 45-51 Peter the Great St. Petersburg Polytechnic University Sokolov Vladimir sva0808@rambler.ru

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

Building systems technical condition assessment based on the multilevel probabilistic analysis Methods based on the stochastic apparatus technical diagnostics are put forward to solve problems concerning determination of the structural elements technical condition. Diagnosis is performed using probabilistic methods of recognition of technical conditions of complex technical systems. The diagnosis is conducted with the help of probabilistic methods of the complex engineering systems condition recognition based on the Bayesian analysis.  The aforementioned approach and information theory methods are applied to run the multilevel diagnostics of elements and systems of floor slabs in old urban buildings. Multilevel diagnostics was done in the concepts of information entropy.  During the analysis of the results of forward and reverse traces on the hierarchical diagnostics structure the next conclusion was made. The forward trace allows to determine the technical condition and category for the each element of each level in the hierarchical structure and the reverse trace gives a possibility to evaluate the contribution of each element condition to the information about the whole building condition. The last point can be an argumentative basis for the account of physical depreciation of building structures. 10.5862/MCE.25.7 building structures technical condition stochastic apparatus multilevel diagnostics methods of information theory information entropy hierarchical diagnostic structure forward trace reverse trace https://engstroy.spbstu.ru/article/2011.25.7/ sokolov_veroyatnosti.pdf

RAR RUS 52-61 Peter the Great St. Petersburg Polytechnic University Soldatenko Tamara soldatenko_tn@bk.ru

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

Model of identification and prediction of building design defects on the basis of its inspection results Known methods of definition the reasons of building designs damages not to the full consider possibilities of expert estimations of their inspection results. In these methods forecasting of the defects reasons of buildings and structures in the future intervals of time is not provided, and also difficult algorithms of the logic analysis of the experimental and expert data that complicates its practical realization are used. The urgency of the offered approach consists in expansion of the problems solved at research of a condition of building designs and creation of effective procedures of work with indistinct knowledge bases. The work purpose is decrease in level of uncertainty at identification and forecasting of defects of building designs. The purpose is reached by application of the device of fuzzy logic at the joint analysis of the expert aprioristic information and results of current tool control of a condition of buildings and constructions. It is offered to estimate possibility of detection of defects of certain types in the future intervals of time by means of the indistinct conclusions, the developed algorithms received at use and settlement procedures. The offered approach has passed settlement approbation with reference to logic processing of the indistinct information on occurrence and development in time of cracks of building designs and has shown the working capacity. On the basis of these results conclusions are drawn on area and conditions of application of the developed algorithms and model. 10.5862/MCE.25.8 inspection of building designs accessory function fuzzy logic linguistic variables damages reasons https://engstroy.spbstu.ru/article/2011.25.8/ soldatenko_prognoz.pdf

RAR RUS 62-70 St. Petersburg State University of Architecture and Civil Engineering Ulshin Aleksey lesha.ul@mail.ru Composite quality index of steel auxiliary bar structures To reduce resource consumption and ensure an adequate level of quality, both in manufacturing and in the installation of metal it is necessary to investigate a composite index of constructability, and a composite index of quality, for subsequent use in structural design. The purpose of this scientific research is to develop composite quality index. At a development of the composite quality index qualimetry conception was used: all properties characterizing quality were found, the hierarchical structure was made, indicators on the third level properties (offered by author) and their weight at each level (expert poll) were defined. The formula of composite quality index of steel auxiliary bar structures was development. The composite index of quality can be used together with the composite index of constructibility at the design stage for evaluating and improving auxiliary bar structures. It is necessary to compare different variants of steel structures because the quantity of used resources at manufacturing and installation can pass in quality, and quality can pass to quantity of used resources. 10.5862/MCE.25.9 quality of steel constructions the composite quality index steel auxiliary bar structures https://engstroy.spbstu.ru/article/2011.25.9/ ulshin_pokazatel.pdf

RAR RUS 71-75 Peter the Great St. Petersburg Polytechnic University Bulatov Georgiy bulatov.spbgpu@gmail.com

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

Peter the Great Saint Petersburg Polytechnic University Kolosova Natalya po.isf@cef.spbstu.ru

Polytechnicheskay, 29

Criteria for selecting the vibratory pile drivers Nowadays in Russia there has been intensive transition from low-rise construction to the high-rise construction. High-rise construction requires reliable foundations. However, these foundations can be performed only by using modern technologies and construction machinery. In this regard, the optimization problem of choice the necessary construction equipment gains in special importance. This article is devoted to refining the selection of equipment for pile driving, inter alia, the vibratory pile drivers. The additional selection criteria of vibratory pile drivers are proposed by increasing the number of parameters on the basis of systematic approach. It creates, in turn, the necessary conditions for optimal choice of vibratory pile drivers. In addition, known empirical dependencies were replaced by analytical dependencies. Received dependencies, according to the authors, meet more convenience of calculations, their transparency and consistency. 10.5862/MCE.25.10 vibratory pile drivers selection criteria driving force of vibropiling unbalance static moment vibration amplitude speed of vibropiling https://engstroy.spbstu.ru/article/2011.25.10/ kolosova_vibropogruzhateli.pdf

RAR RUS 76-81 Peter the Great Saint Petersburg Polytechnic University Morozova T.

Polytechnicheskay, 29

Peter the Great Saint Petersburg Polytechnic University Khe Tyanfu

Polytechnicheskay, 29

Peter the Great Saint Petersburg Polytechnic University Petrova Yelena elen_p88@mail.ru

Polytechnicheskay, 29

Building side area minimization at the expense of optimization the schedule of movement of workers The article analyzes the current methodology of master plan constructing. The requirements of building sides areas minimization in the constrained city conditions lead to the increasing significance of reducing peak values of resource demands in the schedule of movement of workers. The article offers heuristic algorithms and methods to reduce peak loads in the schedule of movement of workers. The algorithm is based on the methods of statistical modeling and involves a limited number of sorting options and choose the best by the criterion of peak values of resources. The method takes into account the mode of dialogue and possibilities of the program MS Project. Techno-economic assessment of proposed optimization solutions master plan is submitted. The proposed calculation method is considered by the example of a business center. 10.5862/MCE.25.11 calendar planning the schedule of movement of workers investment and construction project master plan resource graph optimization alignment of resources random number peak loads heuristic algorithm https://engstroy.spbstu.ru/article/2011.25.11/ morozova_optimization.pdf

RAR RUS 82-86 Saint-Petersburg State University of Architecture and Civil Engineering Bolotin Sergey sbolotin@mail.ru Tuvan State University Dadar Aldyn-kys daryi@mail.ru Peter the Great Saint Petersburg Polytechnic University Ptuhina Irina irena_ptah@mail.ru

Polytechnicheskay, 29

Simulation of calendar planning in Building information modelling programms and regression detailing of construction period rules Nowadays, the process of architectural and designing software improving is developing in the direction of integration of its parts in the unified system. But the principles of Russian norms are so, that they complicate scheduling in this kind of software. The methodology of an economic estimation of the whole building at any moment of its designing on the basis of platform Revit use is offered in the article. The essence of this method is the next: using regression dependences, it is possible to define durations of basis cycles of works by specifying the cost and a necessary stage of creation for the each projected constructive element. Return recalculation allows to define the modified absolute durations of basis cycles of works. As a result, designers will have a constant tool of decision-making, allowing carrying out monitoring during the whole design stage. The offered methodology is described on an example of organizational designing of residential buildings. 10.5862/MCE.25.12 norms of duration regressive dependences economic efficiency estimation cost of virtual sale https://engstroy.spbstu.ru/article/2011.25.12/ ptuhina_imitation.pdf

RAR RUS 87-99 Saint-Petersburg State University of Architecture and Civil Engineering Kalyuzhnyuk Mikhail gamma5105@yandex.ru Peter the Great Saint Petersburg Polytechnic University Kalyuzhnyuk Aleksandr iom96@inbox.ru

Polytechnicheskay, 29

Working operations of simple technological processes in construction industry ordering Ordering process has been described by the example of the simple technological processes of reinforced concrete building structures joints welding working operations set. Methods of ordering are adopted from graph theory, expert assessment, network planning and management. The proposed method is designed for application in technical regulation for organizational effectiveness indicators of simple technological processes of construction and special types of work determining. The proposed methods improve the technical normalization quality. They are recommended for application in systems of the construction industry automated preparation. 10.5862/MCE.25.13 working operation simple technological process organizational and technological module graph theory expert assessment network planning and management methods https://engstroy.spbstu.ru/article/2011.25.13/ kalyuzhnyuk_order.pdf