STRENTHENING OF MASONRY ELEMENTS WITH COMPOSITE MESH UNDER COMPRESSION AND COMPRESSION COMBINED WITH BENDING
Abstract
The paper analyzes the effectiveness of strengthening techniques for masonry elements under central compression and compression combined with bending. Traditional and new strengthening techniques using composite carbon and fiberglass mesh (FRP) are given. The results of experimental investigations of reinforced and unreinforced masonry specimens under compressive loads are analyzed and their failure mechanisms are discussed. Furthermore, it discusses results of numerical analysis of reinforced masonry elements under eccentrically applied compressive loads. The fibre-reinforced polymer strengthening system is used, within which, epoxy adhesive is applied. The distribution of main compressive stresses in reinforced specimens with different sections (square, rectangular and circular) are analyzed and these stress concentration zones are determined.
About the Authors
R. B. Orlovich
West Pomeranian technological university
Russian Federation
Russian Federation
V. Ch. Chakalidi
Construction company "Invest Project "
Russian Federation
Russian Federation
V. V. Bespalov
Peter the Great Saint-Petersburg Polytechnic University
Russian Federation
Russian Federation
References
1. Masia MJ, Shrive NG. Carbon fibre reinforced polymer wrapping for the rehabilitation of masonry columns. - Can J Civil Eng. - 2003. - №30. - 734-44.
2. Shaheen E., Shrive N. G. Strengthening of masonry columns with sprayed glass fibre reinforced polymer (SGFRP) // 10th Canadian Masonry Symposium, Banff, Alberta. - 2005. - pp. 837-846.
3. Corradi M., Grazini A., Borri A. Confinement of brick masonry columns with CFRP materials // Composites science and technology. - 2007. - No. 67. - pp. 1772-1783.
4. Quagliarini E., Monni F., Greco F., Lenci S. Flexible repointing of historical facing-masonry column-type specimens with basalt fibers: A first insight // Journal of Cultural Heritage. - 2017. - No. 24. - pp. 165-170.
5. Fossetti M., Minafò G. Comparative experimental analysis on the compressive behaviour of masonry columns strengthened by FRP, BFRCM or steel wires // Composites Part B: Engineering. - 2017. - No. 112. - pp. 112-124.
6. Witzany J., Cejka T., Zigler R. Failure mechanism of compressed short brick masonry columns confined with FRP strips // Construction and Building Materials. - 2014. - No. 63. - pp. 180-188.
7. Faella C., Martinelli E., Paciello S, Camorani G., Aiello M. A., Micelli F., Nigro E. Masonry columns confined by composite materials: Experimental investigation // Composites Part B: Engineering. - 2011. - No. 42. - pp. 692-704.
8. Micelli F., Di Ludovico M., Balsamo A., Manfredi G. Mechanical behaviour of FRP-confined masonry by testing of full-scale columns // Materials and Structures. - 2014. - No. 47. - pp. 2081-2100.
9. СП 164.1325800.2014 Усиление железобетонных конструкций композитными материалами. Правила проектирования.
10. Orłowicz R. Naprawy i wzmacnianie murow kompozytami włoknistymi // Inżynieryjne problemy odnowy staromiejskich zespołów zabytkowych: Materiały VI Konferencji Naukowo-Technicznej „REW-INŻ.2004” [Krakow, 2004]. - s. 197-204.
11. Деркач, В.Н. Эмпирические критерии прочности каменной кладки в условиях сложного напряженного состояния [Текст] / В.Н. Деркач, Р.Б. Орлович // Строительство и реконструкция. - 2010. - №6 (32).
Review
For citations:
Orlovich R.B., Chakalidi V.Ch., Bespalov V.V. STRENTHENING OF MASONRY ELEMENTS WITH COMPOSITE MESH UNDER COMPRESSION AND COMPRESSION COMBINED WITH BENDING. Building and Reconstruction. 2017;(5):45-49. (In Russ.)
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