Computers and Concrete

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Experimental and numerical investigation on in-plane behaviour of hollow concrete block masonry panels

  • Murthy, A. Rama Chandra (CSIR-Structural Engineering Research Centre, CSIR Campus) ;
  • Ganapathi, S. Chitra (CSIR-Structural Engineering Research Centre, CSIR Campus) ;
  • Iyer, Nagesh R. (CSIR-Structural Engineering Research Centre, CSIR Campus) ;
  • Lakshmanan, N. (CSIR-Structural Engineering Research Centre, CSIR Campus) ;
  • Bhagavan, N.G. (CSIR-Structural Engineering Research Centre, CSIR Campus)
  • Received : 2010.06.16
  • Accepted : 2011.06.22
  • Published : 2012.07.25
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Abstract

This paper presents the details of studies conducted on hollow concrete block masonry (HCBM) units and wall panels. This study includes, compressive strength of unit block, ungrouted and grouted HCB prisms, flexural strength evaluation, testing of HCBM panels with and without opening. Non-linear finite element (FE) analysis of HCBM panels with and without opening has been carried out by simulating the actual test conditions. Constant vertical load is applied on the top of the wall panel and then lateral load is applied in incremental manner. The in-plane deformation is recorded under each incremental lateral load. Displacement ductility factors and response reduction factors have been evaluated based on experimental results. From the study, it is observed that fully grouted and partially reinforced HCBM panel without opening performed well compared to other types of wall panels in lateral load resistance and displacement ductility. In all the wall panels, shear cracks originated at loading point and moved towards the compression toe of the wall. The force reduction factor of a wall panel with opening is much less when compared with fully reinforced wall panel with no opening. The displacement values obtained by non-linear FE analysis are found to be in good agreement with the corresponding experimental values. The influence of mortar joint has been included in the stress-strain behaviour as a monolith with HCBM and not considered separately. The derived response reduction factors will be useful for the design of reinforced HCBM wall panels subjected to lateral forces generated due to earthquakes.

Keywords

References

  1. ANSYS 6.0 (2002), Theory and Reference Manual.
  2. Calderini, C., Cattari, S. and Lagomarsino, S. (2010), "The use of the diagonal compression test to identify the shear mechanical parameters of masonry", Constr. Build. Mater., 24(5), 677-685. https://doi.org/10.1016/j.conbuildmat.2009.11.001
  3. Chaimoon, K. and Mario, M. Attard (2009), "Experimental and numerical investigation of masonry under threepoint bending (in-plane)", Eng. Struct., 31(1), 103-112. https://doi.org/10.1016/j.engstruct.2008.07.018
  4. Gabor, E., Ferrier, E., Jacquelin and Hamelin, P. (2006), "Analysis and modelling of the in-plane shear behavior of hollow brick masonry panels", Constr Buil. Mater., 20(5), 308-321. https://doi.org/10.1016/j.conbuildmat.2005.01.032
  5. Gihad Mohamad, Paulo B. Lourenco and Humberto R. Roman. (2007), "Mechanics of hollow concrete block masonry prisms under compression: Review and prospects", Cement Concrete Comp., 29(3), 181-192. https://doi.org/10.1016/j.cemconcomp.2006.11.003
  6. IS: 1905-1987, Code of Practice for Structural Use of Unreinforced Masonry, 3rd Edition, Bureau of Indian Standards, New Delhi, India.
  7. Joel, M. Barron. and Mary Beth D. Huste. (2004), "Diaphragm effects in rectangular reinforced concrete buildings", ACI Struct. J., 101(5), 615-624.
  8. Krit, Chaimoon and Mario, M. Attard. (2007), "Modeling of unreinforced masonry walls under shear and compression", Eng. Struct., 29(9), 2056-2068. https://doi.org/10.1016/j.engstruct.2006.10.019
  9. Liu, Lipeng, Wang, Zonglin, Zhai, Changhai and Zhai, Ximei (2010), "Constitutive law of grouted concrete block masonry in plain stress state", Struct. Eng. Mech., 34(3), 391-394. https://doi.org/10.12989/sem.2010.34.3.391
  10. Luisa Berto, Anna Saetta, Roberto Scotta and Renato Vitaliani. (2004), "Shear behaviour of masonry panel: parametric FE analyses", Int. J. Solids Struct., 41(16-17), 4383-4405. https://doi.org/10.1016/j.ijsolstr.2004.02.046
  11. Sandro Brasile, Raffaele Casciaro and Giovanni Formica. (2007), "Multilevel approach for brick masonry walls- Part I: A numerical strategy for the nonlinear analysis", Comput. Method. Appl. M., 196(49-52), 4934-4951. https://doi.org/10.1016/j.cma.2007.06.021
  12. Shing, P.B., Noland, J.L., Spaeh, H.P., Klamerus, E.W. and Schuller, M.P. (1991), "Response of single-story reinforced masonry shear walls to in-plane lateral loads", Report No 3.1 (a)-2, U.S. Japan Coordinated Program for Masonry Building Research.
  13. Srinivasa Rao, P., Sivarama Sarma, B., Lakshmanan, N. and Stangenberg, E. (1998), "Damage model for reinforced concrete elements under cyclic loading", ACI Mater. J., 95(6), 682-690.
  14. UBC (1994), Uniform Building Code, International Conference of Building Officials, Whittier, California.

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