A macro-block model for in-plane loaded masonry walls with non-associative Coulomb friction

作者：Casapulla C^*; Portioli F; Maione A; Landolfo R

来源：Meccanica, 2013, 48(9): 2107-2126.

DOI：10.1007/s11012-013-9728-5

• Limit-state analysis
• Non-associative frictional joints
• Macro-modeling
• Micro-modeling
• Masonry shear walls

This paper presents a macro-block model and a simplified procedure for the prediction of the collapse load and the failure mechanism of in-plane loaded masonry walls, with non-associative frictional contact interfaces. The macro-block modeling is based on the assumption that the failure involves a single crack where all the possible relative motions among micro-blocks are concentrated. Two limiting conditions for the ultimate load factor are kinematically computed in closed form, by use of minimization routines of limit analysis. %26lt;br%26gt;The results are compared against micro-block modeling and other macro-block models through a few illustrative examples and a parametric analysis. The influence of the main mechanical and geometrical parameters, such as unit aspect, scale effect, overload and friction is also shown.

• 出版日期2013-11