In-plane behavior of various brick bonds in masonry walls

Abstract

An analytical investigation is carried out to evaluate the influence of brick bond types in in-plane behavior of brick masonry. Header, Stretcher, and English bonds are chosen for numerical simulation for in-plane loading. For numerical modeling, simplified micro-modeling approach is adopted using plasticity-based constitutive models. Three-dimensional nonlinear simulations for the brick bonds for various aspect ratios and pre-compression are carried out in this study. The lateral in-plane displacement control loading is applied for each model until the ultimate failure. The sum of observations highlights that there would be no variation in the elastic behavior of various brick bonds. However, nonlinear analyses highlight that there would be significant variation in the behavior of masonry bonds the diagonal cracking would govern the failure mechanism mostly. Keywords Brick masonry • Brick bond • Compressive strength • In-plane behavior • Micro-modeling List of symbols H Height of wall L Length of wall E u Elastic modulus of units E m Elastic modulus of mortar E nn Elastic stiffness of masonry joints in the normal direction K ss Stiffness of masonry joints in the first shear direction K tt Stiffness of masonry joints in the second shear direction t n max Maximum allowable traction stress in masonry joints in the normal direction G f I Work done by the traction-separation in the normal directionG f II Work done by the traction-separation in the shear direction c Cohesion between the masonry joints interfaces μ Poisson's ratio of the masonry joints interfaces σ c Compressive strength of masonry

Statistical Assessment of In-Plane Masonry Panels Using Limit Analysis with Sliding Mechanism

“…In (Taguchi and Cuadra 2015) a comparison between english and flemish masonry walls has been carried out demonstrating that a larger volume of joints in a flemish wall would lead to a weaker structure in comparison with an english bond masonry wall. Furthermore, (Shrestha et al 2020) implemented a micro-modelling numerical approach to simulate the structural behaviour of masonry panels composed with different bond types and concluded that the elastic response of the panels was not influenced by the bond type, only the ultimate failure load was affected by this parameter.…”