Abstract
The paper presents discrete element simulations of the in-plane horizontal shear of planar walls having different bond patterns. The aim of the analysis was to decide whether the shear resistance could be improved by applying patterns containing vertical bricks. The results show that the presence of vertical bricks increases the shear resistance in case of low vertical confining load only, and the length-to-height ratio of the wall also significantly affects the shear resistance.
Highlights
Planar walls are the most widely applied components of masonry and infilled reinforcement frame buildings
In this study masonry walls with different bond patterns were investigated under monotonically increasing horizontal shear, with a particular attention to the effect of a constant vertical load magnitude and of the length/height ratio of the wall
→ In case of low magnitudes it was found that walls without vertically installed bricks are susceptible to fail with horizontal shear plane which leads to a lower shear resistance
Summary
Planar walls are the most widely applied components of masonry and infilled reinforcement frame buildings. They are known for being vulnerable for in-plane horizontal shear, which significantly affects the load bearing capacity of the whole structure. This feature is the main reason of many damages of masonry buildings exposed to earthquakes and other soil motions. The magnitude of the vertical load acting on shear walls significantly affects both the failure mechanism and the load bearing capacity. The crack pattern of a masonry infill loaded by horizontal shear until failure can be seen in Fig. (1.1)
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