Shear Capacity of Hexagonal Masonry Walls with Hollow and Solid Blocks

Abstract:

Masonry structures are used throughout the world for the construction of residential buildings. However, from a structural viewpoint, the masonry material is characterized by a very low tensile strength; thus, masonry construction often present diffuse fracture patterns. Moreover, masonry bearing and shear walls have been found to be vulnerable to earthquakes. In this study, to improve the seismic performance of masonry structures, hexagonal blocks were developed and six masonry walls used in hexagonal block were tested to failure under reversed cyclic lateral loading. This paper focuses on an experimental investigation of different types of wall used in hexagonal blocks, i.e. walls with different hexagonal blocks and with different reinforcing bar arrangements, subjected to applied cyclic loads. The cracking and damage patterns and hysteretic feature are evaluated. Results showed that damage to blocks in reduced and brittle failure is avoided by the comparatively hexagonal block walls than the existing masonry walls.

• Periodical: Applied Mechanics and Materials (Volume 432)
• Pages: 144-151
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.432.144
• Online since: September 2013
• Authors: Kug Kwan Chang, Dae Won Seo
• Keywords: Hexagonal Blocks, Lateral Load, Shear Capacity, Shear Wall, Unreinforced Masonry Wall

References

[1] Architecture Institute of Korea, Korea Building Code, 337-394(2009).

[2] Ana Lili Orozco, Arup K. Maji, Energy Release in Fiber-Reinforced Plastic Reinforced Concrete Beams, ASCE, 2004, 52-58(2004).

DOI: 10.1061/(asce)1090-0268(2004)8:1(52)

[3] Atkinson R. H., Amadei B. P., Saeb S. and Sture S., Response of Masonry bed joints in direct shear, J. Struct. DiV., ASCE, 115, 2276-2296 (1989).

DOI: 10.1061/(asce)0733-9445(1989)115:9(2276)

[4] Calvi G. M., G., Kingsley R. and Magenes G. (1996) Testing of Masonry structures for seismicassessment, Earthquake Spectra, 12(1), 145-162.

DOI: 10.1193/1.1585872

[5] FEMA 306 , Evalution of Earthquake Damaged Concrete and Masonry Wall Buildings(1999).

[6] IBC-2009, 2009 International Building Code, (2009).

[7] Konig G., Mann W. and Otes A. Experimental investigation on the behavior of URM wallsunder seismically induced loads and lessons derived, Proc. 9th WCEE(1988).

[8] Oliveira DV. Mechanical characterization of stone and brick masonry, Rep. No. 00-DEC/E-4, Univ. do Minho, Guinaraes. (2000).

[9] Roca P. Assessment of masonry shear-walls by simple equilibrium models, construction andbuilding materials, 229-238(2006).

DOI: 10.1016/j.conbuildmat.2005.08.023

[10] Vermelfoort ATh, Raijmakers TMJ, Deformation controlled.