INTERACTION OF A LONG SINGLE PILE THAT HAS A DOUBLE-LAYER BASE WITH ACCOUNT FOR COMPRESSIBILITY OF THE PILE SHAFT

Vestnik MGSU 4/2012
  • Ter-Martirosyan Zaven Grigor'evich - Moscow State University of Civil Engineering (MSUCE) , Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Trinh Tuan Viet - Moscow State University of Civil Engineering (MSUCE) postgraduate student, Department of Mechanics of Soils, Ground Foundation and Foundation Mechanics, Moscow State University of Civil Engineering (MSUCE), 26, Yaroslavskoe Shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 28 - 34

WITH ACCOUNT FOR COMPRESSIBILITY OF THE PILE SHAFT
The authors provide their solution to the problem of interaction of a long compressible pile that has a double-layer linear deformable base. The paper demonstrates that taking account of compressible properties of the pile material leads to qualitatively new distribution of shearing stresses over the surface of a cylindrical pile. It is noteworthy that increase of the pile length and stiffness of the upper section of the base raise the share of the load perceived by the surface of the pile. Besides, in particular conditions of the soil environment, the load perceived by the lower section of the base may reach approximately 20-30 % of the total load.

DOI: 10.22227/1997-0935.2012.4.28 - 34

References
  1. Ter-Martirosyan Z.G. Mekhanika gruntov [Soil Mechanics]. Moscow, ASV Publ., 2009, 550 p.
  2. Ter-Martirosyan Z.G, Nguyen Giang Nam. Vzaimodeystvie svay bol'shoy dliny s neodnorodnym massivom s uchetom nelineynykh i reologicheskikh svoystv gruntov [Interaction between Long Piles and Heterogeneous Soil Body with the Account for Nonlinear and Rheological Properties of Soils]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2008, no. 2, pp. 3—14.
  3. Ukhov S.B., Semenov V.V., Znamenskiy V.V., Ter-Martirosyan Z.G., Chernyshev S.N. Mekhanika gruntov, osnovaniya i fundamenty [Soil Mechanics, Bases and Foundations]. Moscow, ASV Publ., 2004, 566 p.
  4. Ter-Martirosyan Z.G., Trinh Tuan Viet. Vzaimodeystvie odinochnoy dlinoy svai s osnovaniem s uchetom szhimaemosti stvola svai [Interaction between a Single Long Pile and the Bedding with Account for Compressibility of the Pile Shaft]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 8, pp. 104—111.
  5. Nguyen Giang Nam. Identification of the Settlement of the Round Die with Allowance of Its Embedding. Collected papers of the 4th International Scientific Conference of Young Scientists, Postgraduates, and Doctoral Students. Construction as Formation of the Living Environment. Moscow, MSUCE, 2006.

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Analysis of strength of monolithic beamless floors using the limitequilibrium method

Vestnik MGSU 7/2013
  • Kuznetsov Vitaliy Sergeevich - Mytishchi Branch, Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Architectural and Construction Design, Mytishchi Branch, Moscow State University of Civil Engineering (MGSU), 50 Olimpiyskiy prospect, Mytishchi, Moscow Region, 141006, Russian Federation; +7 (495) 583-07-65; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Talyzova Yulia Aleksandrovna - Mytishchi Branch, Moscow State University of Civil Engineering (MGSU) Assistant Lecturer, Department of Architectural and Construction Design, Mytishchi Branch, Moscow State University of Civil Engineering (MGSU), 50 Olimpiyskiy prospect, Mytishchi, Moscow Region, 141006, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 51-58

The authors present features of the strength analysis of monolithic beamless floors, obtained using the limit equilibrium method. This method consists in the following procedure: a monolithic plate bends and breaks in the limit equilibrium under a uniformly distributed load. The influence of various combinations and dimensions of column sections on bending moments are considered. The influence of cross-sectional dimensions of columns on values of effective forces is analyzed in detail. The general equation to solve the strength problems of monolithic plates, having regular grids of columns exposed to continuous uniform loads, is derived and solved by the authors. This expression can be applied to calculate the span and support moments and to establish optimal reinforcement of plates. Results of calculations are presented in graphs that make it possible to derive interesting findings.

DOI: 10.22227/1997-0935.2013.7.51-58

References
  1. Timoshenko S.P., Voynovskiy-Kriger S. Plastinki i obolochki [Plates and Shells] Moscow, 1959, pp. 274—283.
  2. Nikonorov S.V., Tarasova O.A. Tekhnologiya rannego nagruzheniya monolitnykh perekrytiy pri ispol’zovanii balochno-stoechnoy opalubki [Technology of Early Loading of Monolithic Slabs Using Rack-girder Formwork]. Inzhenerno-stroitel’nyy zhurnal [Civil Engineering Journal]. 2010, no. 4. Available at: http://www.engstroy.spb.ru. Date of access: Dec. 5, 2012.
  3. Soudki Kh., El-Sayed A.K., Vanzwolc T. Strengthening of Concrete Slab-column Connections Using CFRP Strips. Journal of King Saud University Engineering Sciences. January 2012, vol. 24, no. 1, pp. 25—33. Available at: http://www. sciencedirect.com. Date of access: Apr. 10, 2013.
  4. Zenunovica D., Folic R. Models for Behavior Analysis of Monolithic Wall and Precast or Monolithic Floor Slab Connections. Engineering Structures. July 2012, vol. 40, pp. 466—478. Available at: http://www. sciencedirect.com. Date of access: Apr. 10, 2013.
  5. Dorfman A.E., Levontin L.N. Proektirovanie bezbalochnykh beskapitel’nykh perekrytiy [Design of Beamless Cap-free Floors]. Moscow, Stroyizdat Publ., 1975, pp. 11—22, 36—46.
  6. Shtaerman M.Ya., Ivyanskiy A.M. Bezbalochnye perekrytiya [Beamless Floors]. Moscow, 1953, pp. 47—64.
  7. Zolotkov A.S. Vibratsionnye ispytaniya fragmentov monolitnykh zdaniy do razrusheniya [Vibration Testing of Fragments of Monolithic Buildings to Fracture]. Inzhenerno-stroitel’nyy zhurnal [Civil Engineering Journal]. 2012, no 1. Available at: http://www.engstroy.spb.ru. Date of access: Dec. 5, 2012.
  8. Wieczorek M. Influence of Amount and Arrangement of Reinforcement on the Mechanism of Destruction of the Corner Part of a Slab-Column Structure. Proñedia Engineering. 2013, vol. 57, pp. 1260—1268. Available at: http://www. sciencedirect.com. Date of access: Apr. 10, 2013.
  9. Malakhova A.N. Usilenie monolitnykh plit perekrytiy zdaniy stenovoy konstruktivnoy sistemy [Strengthening Monolithic Slabs of Buildings Having Wall Structural Systems]. Nauchno-prakticheskiy Internet zhurnal «Nauka. Stroitel’stvo. Obrazovanie» [Science and Practical Journal “Science, Construction, Education”]. 2012, no. 4. Available at: http://www.nso-journal.ru. Date of access: March 31, 2013.
  10. Pogrebnoy I.O., Kuznetsov V.D. Bezrigel’nyy predvaritel’no napryazhennyy karkas s ploskim perekrytiem [Beamless Pre-stressed Frame Having a Flat Slab]. Inzhenerno-stroitel’nyy zhurnal [Civil Engineering Journal]. 2010, no 3. Available at: http://www.engstroy.spb.ru. Date of access: Dec. 5, 2012.
  11. Samokhvalova E.O., Ivanov A.D. Styk kolonny s bezbalochnym beskapitel’nym perekrytiem v monolitnom zdanii [Juncture of a Column and Beamless Cap-free Floors in a Monolithic Building]. Inzhenerno-stroitel’nyy zhurnal [Civil Engineering Journal]. 2009, no 3. Available at: http://www.engstroy.spb.ru. Date of access: Dec. 5, 2012.

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Featuresof the stress-and-strain state of outer walls under the influence of variable temperatures

Vestnik MGSU 10/2013
  • Kremnev Vasiliy Anatol'evich - LLC "InformAviaKoM" Director General, LLC "InformAviaKoM", 2 Pionerskaya str., Korolev, Moscow Region, 141074, Russian Federation; +7 (495) 645-20-62; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Kuznetsov Vitaliy Sergeevich - Mytishchi Branch, Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Architectural and Construction Design, Mytishchi Branch, Moscow State University of Civil Engineering (MGSU), 50 Olimpiyskiy prospect, Mytishchi, Moscow Region, 141006, Russian Federation; +7 (495) 583-07-65; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Talyzova Yuliya Aleksandrovna - Moscow State University of Civil Engineering (MGSU) Assistant, Department of Architectural and Structural Design, Mytishchi Branch, Moscow State University of Civil Engineering (MGSU), 50 Olimpiyskiy prospect, Mytishchi, Moscow Region, 141006, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 52-59

The authors draw attention to possible problems in the process of construction and operation of monolithic frame buildings, construction of which is now widespread. It is known that cracks can often appear in the facade and side walls. The size of the cracks can exceed the allowable limits and repair does not lead to their complete elimination. Also cracks significantly mar the appearance of a building. Thus, the relevance of this study lies not only in fuller understanding of the operation of walls, but also in the ability to prevent undesirable effects.The authors calculated temperature effects for boundary walls of the building blocks made of heavy concrete. The original dimensions of the walls conformed to a grid of columns for the majority of residential and public buildings.The stress-and-strain state of the walls in case of temperature changes is observed in detail, including the transition from sub-zero to above-zero temperatures within the same section (wall). It was revealed that the temperature variations within the established limits may cause stress-and-strain state in the walls, in which the temperature tensile stresses can exceed the tensile strength of materials. The article contains effective means of reducing thermal strains, which can prevent temperature and shrinkage cracking.

DOI: 10.22227/1997-0935.2013.10.52-59

References
  1. Krivoshein A.D., Fedorov S.V. K voprosu o raschete privedennogo soprotivleniya teploperedache ograzhdayushchikh konstruktsiy [On the Problem of Calculating the Reduced Thermal Resistance of Building Envelopes]. Inzhenerno-stroitel'nyy zhurnal [Magazine of Civil Engineering]. 2010, no. 8. Available at: http://www.engstroy.spb.ru Date of access: 5.12.12.
  2. Derkach V.N., Orlovich R.B. Voprosy kachestva i dolgovechnosti oblitsovki sloistykh kamennykh sten [Issues of Quality and Durability of the Lining of Layered Stone Walls]. Inzhenerno-stroitel'nyy zhurnal [Magazine of Civil Engineering]. 2011, no. 2. Available at: http://www.engstroy.spb.ru Date of access: 5.12.12.
  3. Soon-Ching Ng, Kaw-Sai Low, Ngee-Heng Tioh. Newspaper Sandwiched Aerated Lightweight Concrete Wall Panels — Thermal inertia, transient thermal behavior and surface temperature prediction. Energy and Buildings. 2011, vol. 43, no. 7, pp. 1636—1645.
  4. Sami A. Al-Sanea, Zedan M.F. Effect of Thermal Bridges on Transmission Loads and Thermal Resistance of Building Walls under Dynamic Conditions. Applied Energy. 2012, vol. 98, pp. 584—593.
  5. Chengbin Zhang, Yongping Chen, Liangyu Wu, Mingheng Shi. Thermal Response of Brick Wall Filled with Phase Change Materials (PCM) under Fluctuating Outdoor Temperatures. Energy and Buildings. 2011. vol. 43, no. 12, pp. 3514—3520.
  6. Pinsker V.A., Vylegzhanin V.P. Teplofizicheskie ispytaniya fragmenta kladki steny iz gazobetonnykh blokov marki po plotnosti D400 [Thermophysical Test of a Segment of Masonry Walls Made of Aerated Concrete Blocks Mark with the Density D400]. Inzhenernostroitel'nyy zhurnal [Magazine of Civil Engineering]. 2009, no. 8. Available at: http://www.engstroy.spb.ru Date of access: 10.07.13.
  7. Knat'ko M.V., Gorshkov A.S., Rymkevich P.P. Laboratornye i naturnye issledovaniya dolgovechnosti (ekspluatatsionnogo sroka sluzhby) stenovoy konstruktsii iz avtoklavnogo gazobetona s oblitsovochnym sloem iz silikatnogo kirpicha [Laboratory and Field Studies of Durability (Operating Life) of a Wall Structure Made of Autoclave Aerated Concrete with Facing Layer made of Sand-lime Brick]. Inzhenerno-stroitel'nyy zhurnal [Magazine of Civil Engineering]. 2009, no. 8. Available at: http://www.engstroy.spb.ru Date of access: 10.07.13.
  8. Ogorodnik V.M., Ogorodnik Yu.V. Nekotorye problemy obsledovaniya zdaniy s otdelkoy litsevym kirpichom v Sankt-Peterburge [Some Problems of the Inspection of Buildings having Face Brick Finishing in St. Petersburg]. Inzhenerno-stroitel'nyy zhurnal [Magazine of Civil Engineering]. 2010, no. 7. Available at: http://www.engstroy.spb.ru Date of access: 7.02.12.
  9. Snegirev A.I., Al'khimenko A.I. Vliyanie temperatury zamykaniya pri vozvedenii na napryazheniya v nesushchikh konstruktsiyakh [The Influence of Circuit Temperature on the Stresses in the Process of Construction of Load-bearing Structures]. Inzhenerno-stroitel'nyy zhurnal [Magazine of Civil Engineering]. 2008, no. 2. Available at: http://www.engstroy.spb.ru Date of access: 7.02.12.
  10. Karpilovskiy V.S. SCADOFFICE. Vychislitel'nyy kompleks Scad [SCADOFFICE. Computing System Scad]. Moscow, 2011, pp. 274—283.

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DESIGN OF STRUCTURAL ELEMENTS IN THE EVENT OF THE PRE-SET RELIABILITY, REGULAR LOAD AND BEARING CAPACITY DISTRIBUTION

Vestnik MGSU 10/2012
  • Tamrazyan Ashot Georgievich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, full member, Russian Engineering Academy, head of the directorate, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe Shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 109 - 115

Accurate and adequate description of external influences and of the bearing capacity of the structural material requires the employment of the probability theory methods. In this regard, the characteristic that describes the probability of failure-free operation is required. The characteristic of reliability means that the maximum stress caused by the action of the load will not exceed the bearing capacity.
In this paper, the author presents a solution to the problem of calculation of structures, namely, the identification of reliability of pre-set design parameters, in particular, cross-sectional dimensions. If the load distribution pattern is available, employment of the regularities of distributed functions make it possible to find the pattern of distribution of maximum stresses over the structure.
Similarly, we can proceed to the design of structures of pre-set rigidity, reliability and stability in the case of regular load distribution. We consider the element of design (a monolithic concrete slab), maximum stress which depends linearly on load . Within a pre-set period of time, the probability will not exceed the values according to the Poisson law.
The analysis demonstrates that the variability of the bearing capacity produces a stronger effect on relative sizes of cross sections of a slab than the variability of loads. It is therefore particularly important to reduce the coefficient of variation of the load capacity. One of the methods contemplates the truncation of the bearing capacity distribution by pre-culling the construction material.

DOI: 10.22227/1997-0935.2012.10.109 - 115

References
  1. Lychev A.S. Sposoby vychisleniya veroyatnosti otkaza v kompozitsii raspredeleniy prochnosti i nagruzki [Methods of Calculation of the Probability of Failure within the Framework of the Distribution of Strength and Load]. Trudy mezhdunarodnoy nauchno-tekhnicheskoy konferentsii [Collected works of the international scientific and technical conference]. Samara, 1997, pp. 33—37.
  2. Tichy M. In the Reliability Measure. Struct. Safety. 1988, vol. 5, pp. 227—232.
  3. Araslanov A.S. Raschet elementov konstruktsiy zadannoy nadezhnosti pri sluchaynykh vzaimodeystviyakh [Calculation of Structural Elements with the Pre-set Reliability If Exposed to Random Interactions]. Moscow, 1986, 268 p.
  4. Tamrazyan A.G. Otsenka riska i nadezhnosti nesushchikh konstruktsiy i klyuchevykh elementov — neobkhodimoe uslovie bezopasnosti zdaniy i sooruzheniy [Assessment of Risk and Reliability of Bearing Structures and Key Elements as the Necessary Condition of Safety of Buildings and Structures]. Vestnik TsNIISK [Bulletin of Central Research and Development Institute of Building Structures]. 2009, no. 1, pp. 160—171.
  5. JSO/TK 98 ST 2394. General Principles on Reliability for Structures. 1994, pp. 50.
  6. Rayzer V.D. Teoriya nadezhnosti v stroitel’nom proektirovanii [Theory of Reliability in Structural Design]. Moscow, ASV Publ., 1998, 304 p.

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NORMATIVE PROCEDURES OF GLOBAL ICE LOAD CALCULATION

Vestnik MGSU 10/2012
  • Uvarova Tat'yana Erikovna - Far Eastern Federal University (DVFU) Candidate of Technical Sciences, Associate Professor, Department of Hydraulic Engineering, Theory of Buildings and Structures, School of Engineering, 8 (423) 245-16-18, Far Eastern Federal University (DVFU), Office 407, 66 prospect Krasnogo Znameni, Vladivostok, 690014, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pomnikov Egor Evgen'evich - Far Eastern Federal University (DVFU) postgraduate student, Department of Hydraulic Engineering, Theory of Buildings and Structures, School of Engineering, 8 (423) 245-16-18, Far Eastern Federal University (DVFU), Office 407, 66 prospect Krasnogo Znameni, Vladivostok, 690014, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shamsutdinova Gyuzel' Radikovna - Far Eastern Federal University (DVFU) master student, Department of Hydraulic Engineering, Theory of Buildings and Structures, School of Engineering, 8 (423) 245-08-90, Far Eastern Federal University (DVFU), Office 407, 66 prospect Krasnogo Znameni, Vladivostok, 690014, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Narkevich Anastasiya Sergeevna - Far Eastern Federal University (DVFU) master student, Department of Hydraulic Engineering, Theory of Buildings and Structures, School of Engineering, 8 (423) 245-08-90, Far Eastern Federal University (DVFU), Office 407, 66 prospect Krasnogo Znameni, Vladivostok, 690014, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Protsenko Viktoriya Vladimirovna - Far Eastern Federal University (DVFU) Assistant Lecturer, Department of Hydraulic Engineering, Theory of Buildings and Structures, School of Engineering, 8 (423) 245-08-90, Far Eastern Federal University (DVFU), Office 407, 66 prospect Krasnogo Znameni, Vladivostok, 690014, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 122 - 127

The authors argue that the availability of substantial hydrocarbon reserves in the waters of oceans and growing needs for this type of resources boosts the development of mining operations in the shelves of seas and oceans. The majority of continental shelves of the Russian Federation are located in the areas of freezing seas; therefore, the calculation of ice loads is an important issue. Analysis of ice loads that the offshore structures are exposed to represents a major problem. A significant reduction in the construction costs is attainable through rational design that contemplates a pressing need for simple and reliable methods of calculation. The paper represents an attempt to consolidate and analyze the main normative procedures that govern the calculation of ice loads, and to present them in the form that may be easily processed by the software.

DOI: 10.22227/1997-0935.2012.10.122 - 127

References
  1. Grigorenko Yu.N., Margulis L.S., Novikov Yu.N., Sobolev Yu.S. Morskaya baza uglevodorodnogo syr’ya Rossii i perspektivy ee osvoeniya [Offshore Deposits of Hydrocarbon Resources of Russia and Prospects for Their Assimilation]. Neftegazovaya geologiya. Teoriya i praktika. [Geology of Oil and Gas. Theory and Practice]. 2007, vol. 2. Available at: www.ngtp.ru/rub/4/002.pdf. Date of access: 12.06.2012.
  2. VSN 41—88. Vedomstvennye stroitel’nye normy (eksperimental’nye) proektirovaniya ledostoykikh statsionarnykh platform [VSN 41-88. Industrial (Experimental) Construction Norms of Design of Offshore Ice-resistant Fixed Platforms]. Moscow, 1988.
  3. SNiP 2.06.04—82*. Nagruzki i vozdeystviya na gidrotekhnicheskie sooruzheniya (volnovye, ledovye i ot sudov). [Construction Norms and Regulations. Loads and Actions on Hydraulic Engineering Structures (Waves, Ice, and Vessels)]. Moscow, 1995.
  4. STO Gazprom 2-3.7-29—2005. Raschet ledovykh nagruzok na ledostoykuyu statsionarnuyu platformu. [Standard of Organizations. Gasprom. 2-3.7-29—2005. Calculation of Ice Loads on Ice-resistant Fixed Platforms]. Moscow, 2005.
  5. API RP 2N. Recommended Practice for Planning, Designing and Constructing Structures and Pipelines for Arctic Conditions. Amer. Petroleum Inst. Bulletin. Dallas, 1995.
  6. CAN/CSA-S471—92. General Requirements, Design Criteria, Environment, Loads. National Standard of Canada, 2004.
  7. Danish Standard 410. Code of Practice for Loads for the Design of Structures. 1998.
  8. L. Fransson, L. Bergdahl. Recommendations for Design of Offshore Foundations Exposed to Ice Loads. Elforsk rapport 09:55. April 2009, 43 p.
  9. Germanischer Lloyd. Oil and Gas GmbH: General Terms and Conditions. Hamburg, 2005.
  10. ISO/CD 19906. Petroleum and Natural Gas Industries – Arctic Offshore Structures.
  11. US Army Corps of Engineers. Engineering and Design-Ice Engineering. USACE Engineer Manual EM 1110-2-1612, 2006.

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