33407
2304-6295
Construction of Unique Buildings and Structures
2
29
2015
1-124
RAR
RUS
7-19
University of Montenegro
Sekulic
Goran
sgoran2000@gmail.com
Cetinjski put bb, 81000, Podgorica, Montenegro
University of Montenegro
Cipranic
Ivana
ivana.cipranic@me.com
Cetinjski put bb, 81000, Podgorica, Montenegro
The pressure-boosting pumping stationsin modernization of water supply systems
Based on the acknowledged theoretical proofs and experiences in the modernization of water supply systems, it can be concluded that out of the range of available measures to reduce leakages, the regulation and/or reduction of operating pressures is being recommended as the most efficient method thereto. The known proof-theoretical papers on water supply system leakage and the corresponding operating pressure losses advocate thesis on possibility to reduce the level of operating pressures to the range of 3.5-2.5 bars, in all parts of the network where applicable, which is evidenced to be a sufficient level enabling the uninterrupted operations of the large percent of the users. The justification of the previously stated attitude can be proved by means of simple schemes of supply line which correspond to the possible states that can occur in actual operating modes of the water supply system. An analysis was performed with focus on the location and role of the pressure-boosting pumping stations used to increase the pressure in achieving the new low-pressure state and their respective influence on techno-economic parameters upon which a decision is made on economic viability of the solution concerned.
10.18720/CUBS.29.1
69
water supply systems
pumping station
environmental engineering
urban civil engineering
municipal facilities
https://unistroy.spbstu.ru/article/2015.29.1/
1_sekulic_29.pdf
RAR
RUS
20-33
Peter the Great St. Petersburg Polytechnic University
Kuzmin
Ivan
ikuzmiin@gmail.com
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
Apartment individual heating unit in design of heat and water supply
The method of increasing the efficiency of heat and water supply systems by using apartment individual heating unit describes in this article Apartment individual heating unit is a prefabricated module, which could be put in or on the wall, modifying heat conductor, separate flows of heat conductor into heat system and into hot-water supply, and controls heat demands of this systems. Apartment individual heating unit makes possible not to use central hot-water supply. The article provides the overview of advantages of apartment individual heating unitover other alternative systems.
10.18720/CUBS.29.2
69
heat unit
energy efficiency
energy saving
heat supply
water supply
https://unistroy.spbstu.ru/article/2015.29.2/
2_kuzmin_29.pdf
RAR
RUS
34-44
Peter the Great St. Petersburg Polytechnic University
Egarmin
Konstantin
kon.egarmin@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
Peter the Great St. Petersburg Polytechnic University
Sysoev
Grigory
401511@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
O-6995-2019
6508103761
0000-0002-1196-8004
Peter the Great St. Petersburg Polytechnic University
Vatin
Nikolai Ivanovich
vatin@mail.ru
St. Petersburg, Russian Federation
Peter the Great St. Petersburg Polytechnic University
Vrublevskaya
Maria
masha0901@gmail.com
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
Analysis of stress in frame nodes of a single-storey steel framework in high seismic loads conditions with the use of SCAD software
The article contains an analysis of calculation data of a single-storey steel framework. The calculations were conducted with the use of SCAD software. The stress in elements was calculated and analyzed during the research.
10.18720/CUBS.29.3
69
seismic
stress analysis
steel framework
nodes,SCAD
https://unistroy.spbstu.ru/article/2015.29.3/
3_egarmin_29.pdf
RAR
RUS
45-56
Peter the Great St. Petersburg Polytechnic University
Korsun
Artem
korsun_av@mail.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
Donbas National Academy of Civil Engineering and Architecture
Dmitrenko
Evgeniy
d.e.a_2008@mail.ru
2, Derzhavina St., Makeyevka, Donetsk region, 86123, Ukraine
Donbas National Academy of Civil Engineering and Architecture
Volkov
Andrei
volkovasing@rambler.ru
2, Derzhavina St., Makeyevka, Donetsk region, 86123, Ukraine
The influence of construction defects onbearing capacity of reinforced concrete constructions of a frame monolithic building
The article introduces the results of the technical examination of a monolithic reinforced concrete frame building being built in Donetsk. The description of the building structures defects and causes of their appearance, the results of laboratory tests of concrete strength have been introduced. The influence of the identified defects on the construction efforts in framework elements and on their bearing capacity has been studied. Conclusions about the performance of structures and the possibility of building continuation have been made on the basis of examination results.
10.18720/CUBS.29.4
69
mass concrete
concrete strength
defects
bearing capacity
reliability
https://unistroy.spbstu.ru/article/2015.29.4/
4_korsun_29.pdf
RAR
RUS
57-72
Peter the Great St. Petersburg Polytechnic University
Kokotkova
Oksana
kokotkova0308@me.com
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
Bespalov
Vladimir
chanchullero@yandex.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
Vault structures of historical buildings
The article is devoted to description base varieties of vault structures arched before XXthcentury. History of studying structural features of vaults and nowadays situation were considered. According to the analysis, the following conclusionsare:
1) at the present time, in spite of technological progress, still has not found the law of stress distribution in the vault body and not a set of criteria developed by the strength and stability;
2) there is no researches which would are deeply engaged in this issuein Russia;
3) the most common way to date the approximate calculation of the vaulted structures is the use of software that take into account the nonlinearity and anisotropy of these structures, such as ANSYS or SOFiSTiK.
Requisite of fundamental research structural behavior have been founded. Vaults of main building St.-Petersburg State polytechnicuniversity were inspected and analyzed.
10.18720/CUBS.29.5
69
masonry vault
arch
structural scheme
historical building
analysis
https://unistroy.spbstu.ru/article/2015.29.5/
5_kokotkova_29.pdf
RAR
RUS
73-86
University of Montenegro
Radulovic
Milan
mradovic@gmail.com
Cetinjski put bb, 81000, Podgorica, Montenegro
University of Montenegro
Sekulic
Goran
sgoran2000@gmail.com
Cetinjski put bb, 81000, Podgorica, Montenegro
Determining locations of sublacustrine springs by remote sensing: the Skadar Lake case example Montenegro
Locating zones of submarine or sublacustrine groundwater discharge often presents the most important part of a costal hydrogeological research. These zones are most commonly unobservable from the surface, so their determination requires complex research of large areas (the measurement of water temperature and salinity from craft vehicles, diving explorations, etc.). Analyzing of satellite and aerial images represents a more rational way for locating of sublacustrine and submarine springs (vruljas). Application of remote sensing for these purposes caninclude two techniques: determination of temperature anomalies from the thermal infrared satellite images and identification of faults which control groundwater flow. The Landsat 7 ETM+ thermal bands for the area of Skadar Lake are used for the determination of the temperature anomalies, i.e. the locations where colder groundwater outflow below the warmer lake water. For the identification of faults, color composite image (Landsat bands 4, 5, 7) are used, and after a selection of potential zones, detailed aerial images are also analyzed. Considering that the main sublacustrine springs of the southwest cost of Skadar Lake were known by previous complex researches, this area was used as a pilot area for the testing these remote sensing techniques. It has been concluded that the application of remote sensing can be very useful for the focusing the hydrogeological investigations to potential discharge zones which can significantly reduce the cost and time of a research.
10.18720/CUBS.29.6
69
remote sensing
sub lacustrine springs
hydrological research
hydrotechnics
Skadar Lake
https://unistroy.spbstu.ru/article/2015.29.6/
6_radulovic_29.pdf
RAR
RUS
87-97
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
Soldatenko
Tamara
soldatenko_tn@bk.ru
Peter the Great St. Petersburg Polytechnic University
Bespalov
Vladimir
chanchullero@yandex.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
Logistic model for the importation of a tropical timber from South America
The article presents a math model in supply logistics of tropical industrial wood from South America. Obligatory conditions such as minimization of expenses and regularity of supplies are a priority in the article. Using this model calculation example was made for tropical wood Curupau. As the result the cheapest method ofdelivering the wood in eaves board was found.Logistic model may be used to:
- take into account special aspects for buying and delivering of considered material;
- form deliver configuration and found time\cost\other-optimal variant.
For example, cost-optimal would be $22 206 and 45 days; time-optimal would be 12 days and $52 056.
10.18720/CUBS.29.7
69
timber
developing building companies
logistics
import
math model
minimization
business model
https://unistroy.spbstu.ru/article/2015.29.7/
7_zalata_29.pdf
RAR
RUS
98-111
Peter the Great St. Petersburg Polytechnic University
Usoltceva
Marina
slcvmrn@rambler.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
Peter the Great St. Petersburg Polytechnic University
Volkova
Yulia
landscape@cef.spbstu.ru
29 Politechnicheskaya St., St. Petersburg, 195251, Russia
Land reclamation of industrial areas in St. Petersburg
This article describes the territory of the industrial areas of St. Petersburg and the problems of land reclamation. It shows the importance of proper renovation of the industrial areas, especially those that are located in the city center and are interesting for the city and investors. Also focus on the comparison of tax policy with the European. The problem of soil pollution industrial areas of St. Petersburg presents. In this paper numerous recommendations are proposed which encourage to accelerate the process of land reclamation, improve the economic efficiency of it and its attractiveness to investors.
10.18720/CUBS.29.8
69
industrial areas
land reclamation
level of contamination
renovation of historical monuments
contamination of soils
investing in industrial zone
https://unistroy.spbstu.ru/article/2015.29.8/
8_usoltceva_29.pdf
RAR
RUS
112-124
University of Sarajevo
Mazic
Branko
mazic@lsinter.net
Patriotske lige 30, 71000 Sarajevo, Bosna i Hercegovina
Zavod za izgradnju grada
Mandic
Aleksandra
familyns@open.telekom.rs
Serbia, Novi Sad, Stevana Branovačkog br.3
Stress estimate in a multi-layer flexible pavement construction
The objective of the paper is providing experts with a procedure for stress estimate in a flexible pavement using tables, diagrams and nomograms. Müller nomograms ensure a reliable estimate of pavement stresses in a multi-layer flexible pavement construction. The paper presents the procedure of the stress estimate in a flexible pavement.
10.18720/CUBS.29.9
69
pavement
pavement layers
pavement layers’ stress
stress estimate
flexible pavement
construction
https://unistroy.spbstu.ru/article/2015.29.9/
9_mazic_29.pdf