Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science


  • BUILDING STRUCTURES, BUILDINGS AND FACILITIES
  • Strengthening of Wooden Structures Using "KM-Pasting" Connections
  • UDC 624.011.1 DOI: 10.33622/0869-7019.2019.03.42-47
    Nikolay V. LINKOV, e-mail: nicklinkov@gmail.com
    Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
    Abstract. The possibility of using "KM-pasting" connections in the form of a composite material based on epoxy matrix and fiberglass to restore the operational life and strengthening of wooden structures with damages, or when increasing the loads acting on them is considered. The arrangement of the connection and requirements to materials are presented, peculiarities of its operation when strengthening and restoring wooden structures are shown. The calculation method and strength characteristics of the "KM-pasting" connection, the design requirements for ensuring its working condition are presented; coefficients of operation conditions for the calculation of wooden bending elements of the composite section are given. Strengthening with the use of "KM-pasting" connections can be performed both in local areas and along the entire length of the structure. In addition, the reinforcement can be carried out directly on the objects while maintaining the design position of the structure. Examples of strengthening of wooden structures in the intermediate floors and coating at the objects of Moscow, including those related to the monuments of architecture, history and culture are presented. The effectiveness of the use of KM-connections for the restoration and strengthening of wooden structures is confirmed by fifteen years of experience in the trouble-free operation of wooden structures reinforced by the method of "KM-pasting".
    Key words: composite material, epoxy matrix, fiberglass, reinforcement of wooden structures, KM-pasting connection, calculated bearing capacity, wooden elements of composite section, restoration of architectural monuments.
  • REFERENCES
    1. Lin'kov V. I., Lin'kov N. V. Ways to strengthen wooden structures. Stroitel'naya inzheneriya, 2006, no. 10 (22), pp. 66-70. (In Russian).
    2. Roshchina S. I., Smirnov E. A., Lukin M. V., Lukina A. V., Gribanov A. S. Restoration of destructive sites of the support zones of wooden beams by impregnation with a polymer solution. Nauchno-tekhnicheskij vestnik Povolzh'ya, 2014, no. 5, pp. 293-296. (In Russian).
    3. Pyatnickij A. A., Krutik S. A. Strengthening of roof girders and floor girders with the use of carbon fiber reinforced plastic. Promyshlennoe i grazhdanskoe stroitel'stvo, 2018, no. 6, pp. 57-60. (In Russian).
    4. Ponomarev A. N. Composite wood-polymer composites in industrial civil engineering. Inzhenerno-stroitel'nyj zhurnal, 2016, no. 8 (68), pp. 45-57. (In Russian).
    5. Davidyuk A. N., Spivak N. A. The use of high-strength composites for the reinforcement of reinforced concrete structures. Beton i zhelezobeton, 2016, no. 2, pp. 13-16. (In Russian).
    6. Tusnin A. R., Shchurov E. O. Experimental studies of steel elements strengthened by carbon fiber composite materials. Promyshlennoe i grazhdanskoe stroitel'stvo, 2017, no. 9, pp. 25-29. (In Russian).
    7. Danilov A. I., Kalugin I. A. Reinforcement of stretched elements by polymers based on high-strength fiber. Promyshlennoe i grazhdanskoe stroitel'stvo, 2018, no. 12, pp. 25-31. (In Russian).
    8. Rimshin V. I., Aralov R. S. To the issue of strengthening brick walls with steel cages and composite materials. Promyshlennoe i grazhdanskoe stroitel'stvo, 2018, no. 12, pp. 38-41. (In Russian).
    9. Ibragimov A. M., Kustov A. A., Mokin N. A. Experimental and numerical analysis stress-strain state of tensile membrane hypar structures. Promyshlennoe i grazhdanskoe stroitel'stvo, 2018, no. 7, pp. 35-42. (In Russian).
    10. Patnaik A. K., Bauer C. L. Strengthening of steel beams with carbon FRP laminates. Proc. of the 4th Advanced composites for bridges and structures conference. Calgary, Canada, 2004. рр. 25-39.
    11. Colombi P., Bassetti A., Nussbaumer A. Analysis of cracked steel members reinforced by prestressed composite patch. Fatigue Fract Eng Mater Struct, 2003, vol. 26, no. 1, pp. 59-67.
    12. Tljsten B., Hansen C. S., Schmidt J. W. Strengthening of old metallic structures in fatigue with prestressed and non-prestressed CFRP laminates. Construction and Building Materials, 2009, no. 23(4), pp. 1665-1677.
    13. Ghafoori E., Motavalli M., Botsis J., Herwig A., Galli M. Fatigue strengthening of damaged metallic beams using prestressed unbonded and bonded CFRP plates. International Journal of Fatigue, 2012, no. 44, pp. 303-315.
    14. Ghafoori E., Schumacher A., Motavalli M. Fatigue behavior of notched steel beams reinforced with bonded CFRP plates: determination of prestressing level for crack arrest. Engineering Structures, 2012, no. 45, pp. 270-283.
    15. Zozulya V. V., Romanchenko O. V., Sahanov V. V., Fitchin A. A. Wood as a building material: problems and prospects of use. Promyshlennoe i grazhdanskoe stroitel'stvo, 2018, no. 2, pp. 67-71. (In Russian).
    16. Lin'kov N.V. Determination of Parameters of "Cm-Taping" connection for wood elements of composite section. Promyshlennoe i grazhdanskoe stroitel'stvo, 2014, no. 9, pp. 47-50. (In Russian).
    17. Lin'kov N. V. Stress-strain state of cross section wooden beams on composite connections at long-term load. Promyshlennoe i grazhdanskoe stroitel'stvo, 2015, no. 7, pp. 44-48. (In Russian).
    18. Lin'kov N. V. Connection "KM-pasting " for composite wooden beams. Nauchnoe obozrenie, 2016, no. 17, pp. 10-15. (In Russian).
    19. Lin'kov N. V. On the use of fabric-based composite materials in wooden structures of composite section. Izvestiya vysshih uchebnyh zavedenij. Tekhnologiya tekstil'noj promyshlennosti, 2017, no. 3 (369), pp. 103-108. (In Russian).
    20. Lin'kov N. V. The use of fiberglass plain weave in a composite material for strengthening wooden structures. Izvestiya vysshih uchebnyh zavedenij. Tekhnologiya tekstil'noj promyshlennosti, 2018, no. 3 (375), pp. 75-80. (In Russian).
  • For citation: Linkov N. V. Strengthening of Wooden Structures Using "KM-pasting" Connections. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2019, no. 3, pp. 42-47 (In Russian). DOI: 10.33622/0869-7019.2019.03.42-47.


BACK