DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

DEVELOPMENT OF ANALYTICAL MODELS FOR THE ANALYSIS OF FOUNDATIONS OF BUILDINGS AND STRUCTURES IN THE DENSE URBAN ENVIRONMENT

Vestnik MGSU 6/2012
  • Koreneva Elena Borisovna - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, +7(499) 183-59-94, 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 42 - 47

The author proposes analytical methods of analysis of foundation slabs in the dense environment of present-day cities and towns. The two analytical models, including the model of semi-infinite and finite beams are considered. The influence produced by adjacent tunnels, deep excavations and foundation pits is examined. Bedding properties are described through the employment of the Winkler model. Account of additional deflections and angles of deflections must be taken in the above-mentioned cases.

DOI: 10.22227/1997-0935.2012.6.42 - 47

References
  1. Sheynin V.I., Pushilin A.N. Razrabotka inzhenernoy skhemy rascheta konstruktsiy zdaniy s uchetom smeshcheniy zemnoy poverkhnosti [Development of an Engineering Model for Computation of Structures of Buildings with Account for Displacements of the Earth Surface]. Proceedings of the International Scientific and Practical Conference TAR-Russia. Moscow, 2002, pp. 463—467.
  2. Il’ichev V.A., Nikiforova N.S., Koreneva E.B. Metod rascheta deformatsiy zdaniy vblizi glubokikh kotlovanov [Method of Computation of Deformations of Buildings in Proximity to Deep Pits]. Osnovaniya, fundamenty i mekhanika gruntov [Beddings, Foundations and Soil Mechanics]. 2006, no. 6, pp. 2—6.
  3. Koreneva E.B., Grosman V.R. Raschet lentochnogo fundamenta vblizi glubokoy vyemki [Computation of Strip Foundation in Proximity to Deep Pits]. Proceedings of International Conference on Geomechanics «Development of Cities and Geotechnical Engineering». St.Petersburg, 2008, vol. 3, pp. 146—152.
  4. Koreneva E.B. Voprosy analiticheskogo modelirovaniya raboty polubeskonechnykh fundamentov, raspolozhennykh vblizi glubokikh vyemok ili kotlovanov [Problems of Analytical Simulation of Behaviour of Semi-infinite Foundations in Proximity to Deep Excavations and Pits]. Journal for Computational Civil and Structural Engineering. 2012, no. 1, pp. 12—18.
  5. Korenev B.G. Voprosy rascheta balok i plit na uprugom osnovanii [Problems of Analysis of Beams and Plates resting on Elastic Foundation]. Moscow, Gosstroyizdat Publ., 1954, 231 p.

Download

Ensuring high quality and efficiency of the worksin the process of constructing the tunnels of in-situ concrete

Vestnik MGSU 1/2014
  • Ginzburg Aleksandr Vladimirovich - Scientific Production Association «Cosmos» (LLK «NPO «KOSMOS») Candidate of Technical Sciences, Vice-President for Regional Development, Scientific Production Association «Cosmos» (LLK «NPO «KOSMOS»), 38-25, Shosse Entuziastov, Moscow, 111123, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 98-110

In the article the author describes the importance of the technological regulations development in the process of constructing various transport constructions: tunnels, subways, bridges and other important objects. In the article the peculiarities of the tech- nological regulations development are fully taken into account; the dependence of the depth of their development and the quality of the concrete constructions, as well as the speed of the objects of transport infrastructure construction, including the examples of building the road tunnels in Moscow. The course of their development is shown with account for the main provisions, which should be included in technological regulations in order to ensure the most complete coverage of the issues arising in engineering, laboratory and Supervisory structure in the process of performing the works. The author proposes new effective materials and technologies of works. In particular, sufficient attention is paid to self-compacting concrete — a new type of concrete, which is able to flow and compact under its own weight, completely filling the formwork even in case of dense reinforcement, while maintaining the homogeneity and having no seals. The application experience of concrete self-sealing in the construction of the metro showed that labor costs for the concrete mixture sealing were 5-6 times reduced, and the speed of laying the concrete increased 2-3 times. When laying self-compacting concrete high-quality surfaces are formed, which do not require additional costs to bring them to the design parameters. In addition, the work shows the parameters of the technological processes and sets various types of works sequence: the article describes the features of formwork, placement and curing of the concrete in terms of year-round construction, shows the importance of thermo physical calculations of concrete hardening and the efficiency of using self-sealing concrete. Sufficient attention is also paid to the methods of quality assurance and to the methods of preventing cracking of various structural elements of a construction, as well as to the safety requirements and ensuring proper protection of the environment.

DOI: 10.22227/1997-0935.2014.1.98-110

References
  1. Solov'yanchik A.R., Pulyaev I.S. Osobennosti vozvedeniya v zimnikh usloviyakh zhelezobetonnykh konstruktivnykh elementov zdaniya akademii dzyudo v g. Zvenigorod Moskovskoy oblasti [Features of Constructing the Reinforced Concrete Elements of the Building of Judo Academy in Zvenigorod City of Moscow Region in Winter Conditions]. Beton i zhelezobeton. Oborudovanie, materialy, tekhnologii [Concrete and Reinforced Concrete. Equipment, Materials, Technologies]. 2011, no. 2(5), pp. 76—80.
  2. Shifrin S.A., Tkachev A.V. Teplovoe vzaimodeystvie tverdeyushchego betona i betonnogo osnovaniya v usloviyakh solnechnoy radiatsii [Thermal Interaction of Hardening Concrete and Concrete Base in the Conditions of Sun Radiation]. Sbornik trudov VNIIPITeploproekt [Collection of Works of Teploproekt]. Moscow, VNIIPITeploproekt Publ., 1985, pp. 19—27.
  3. Solov'yanchik A.R., Korotin V.N., Pulyaev I.S., Tret'yakova N.S. Opyt primeneniya samouplotnyayushchikhsy betonnykh smesey pri sooruzhenii mostov i tonneley [The Experience of Applying Self-compacting Concrete Mixtures in the Process of Constructing Bridges and Tonnels]. Alitinform. Mezhdunarodnoe analiticheskoe obozrenie. Tsement. Beton. Sukhie smesi [Alitinform. International Analytical Review. Cement. Concrete. Dry Mixtures]. 2012, no. 3 (25), pp. 8—18.
  4. Smirnov N.V., Antonov E.A. Rol' polzuchesti betona v formirovanii termonapryazhennogo sostoyaniya monolitnykh zhelezobetonnykh konstruktsiy v protsesse ee vozvedeniya [The Role of Concrete Creep in the Process of Forming the Thermal Strain State of Monolithic Reinforced Concrete Structures during the Building Process]. Sbornik trudov TsNIIS [Collection of Works of Scientific and Research Institute of Transport Construction]. Moscow, TsNIIS Publ., 2005, no. 233, pp. 89—117.
  5. Solov'yanchik A.R., Sychev A.P., Shifrin S.A. O vliyanii rasstoyaniya mezhdu postoyannymi temperaturno-deformatsionnymi shvami na treshchinoobrazovanie v konstruktivnykh elementakh Gagarinskogo tonnelya [On the Influence of the Distance Between Constant Expansion Joints on Crack Formation in Constructive Elements of Gagarinskiy Tunnel]. Dolgovechnost' stroitel'nykh konstruktsiy. Teoriya i praktika zashchity ot korrozii: materialy Mezhdunarodnoy konferentsii 7—9 oktyabrya 2002 goda [Durability of Building Structures. Theory and Practice of Corrosion Proofing. Materials of the International Conference, October 7—9, 2002]. Moscow, Tsentr ekonomiki i marketinga Publ., 2002, pp. 11—17.
  6. Schoeppel K., Plannerer M., Springenschmid R. Determination of Restraint Stresses and of Material Properties during Hydration of Concrete with the Temperature-stress Testing Machine. International RILEM Symposium. Munich, 1994, p. 153.
  7. Solovyanchik A.R., Krylov B.A., Malinsky E.N. Inherent Thermal Stress Distributions in Concrete Structures and Method for their Control. Thermal Cracking in Concrete at Early Ages. Proceedings of the International RILEM Symposium. Munich, 1994, no. 25, pp. 369—376.
  8. Solov'yanchik A.R., Shifrin S.A. Upravlenie termonapryazhennym sostoyaniem monolitnykh zhelezobetonnykh konstruktsiy pri skorostnom kruglogodichnom stroitel'stve transportnykh sooruzheniy [Control of Thermal Strain State of Monolithic Reinforced Concrete Structures in the Process of High Speed Year-round Construction of Transport Structures]. Sbornik trudov TsNIIS [Collection of Works of the Scientific and Research Institute of Transport Construction]. Moscow, TsNIIS Publ., 2000, no. 203, pp. 158—164.
  9. Thielen G., Hintzen W. Investigation of Concrete Behavior under Restraint with a Temperature-stress Test Machine. International RILEM Symposium. Munich, 1994, no. 25, pp. 142—152.
  10. Shifrin S.A. Uchet neritmichnosti tekhnologicheskikh protsessov pri vybore i obosnovanii rezhimov betonirovaniya raznomassivnykh konstruktsiy transportnykh sooruzheniy [Account for Irregularity of Technological Processes in the Process of Choosing and Reasoning the Modes of Concrete Pouring of the Structures of Transport Constructions with Different Masses]. Sbornik trudov TsNIIS [Collection of Works of Scientific and Research Institute of Transport Construction]. Moscow, TsNIIS Publ, 2003, no. 217, pp. 206—216.

Download

Results 1 - 2 of 2