Macro and Micro Modeling of the Unreinforced Masonry Shear Walls

Yıl 2019, Cilt: 3 Sayı: 2, 116 - 123, 10.10.2019

Sedat Komurcu , Abdullah Gedikli

Öz

Masonry
structures are constructed by joining masonry units (brick, stone, marble etc.)
with mortar.  Various methods are used
for modeling of masonry walls of the structures. Micro modeling and Macro modeling
are two diverse modeling techniques. In this study, these two modeling
strategies are analyzed on a solid unreinforced masonry shear wall numerically.
The models are implemented in ANSYS software to simulate the structural
behavior of a tested wall in literature. The homogenization technique is
applied to obtain the material parameters used in the macro model. Brick and
mortar are modelled separately in the micro model. Stresses occurring in the
walls under the effect of in-plane loads are investigated. The propagations of
the cracks on the walls are analyzed numerically. The results obtained in the
micro modeling and macro modeling are in consistent with the experimental study
in the literature. However, macro modeling and micro modeling represent
strictly disparate behavior in the material identification, and crack
propagations.

Anahtar Kelimeler

Crack, Macro, Masonry, Micro

Kaynakça

• [1]. R.D. Quinteros, S. Oller, L.G. Nallim, “Nonlinear homogenization techniques to solve masonry structures problems,” Composite Structures., vol. 94, pp. 724–730, 2012. [2]. H.O. Köksal, B. Doran, A.O. Kuruscu, A. Kocak, “Elastoplastic finite element analysis of masonry shear walls,” KSCE Journal of Civil Engineering., vol. 20, pp. 784-791, 2016. [3]. J. Idris, M. Al Heib, T. Verdel, “Masonry Joints Mechanical Behavior Evolution in Built Tunnels,” Tunneling and Underground Space Technology, vol. 24, pp. 617-626. 2009. [4]. M. Bolhassani, A.A. Hamid, A.C.W. Lau, F. Moon, “Simplified micro modeling of partially grouted masonry assemblages,” Construction and Building Materials, vol. 83, pp. 159-173 September 2015. [5]. Lourenço, “Computational Strategies For Masonry Structures” Doctoral dissertation, Delft University of Technology, The Netherlands, 1996. [6]. P.B. Lourenço, J.G. Rots, J. Blaauwendraad, “Two Approaches for the Analysis of Masonry Structures: Micro and Macro-Modeling,” Heron, vol. 40, 1995. [7]. S. Oller, Numerical Simulation of Mechanical Behavior of Composite Materials, Barcelona, Spain, Springer, 2014. [8]. A.Th. Vermeltfoort, T.M.J. Raijmakers, “Deformation controlled meso shear tests on masonry piers,” The Netherlands: Building and Construction Research, Eindhoven, Report B-92-1156, TNO-BOUWrrU, 1992.