What is the maximum corbelled projection allowed beyond the face of an unreinforced hollow masonry wall?

The maximum corbelled projection allowed beyond the face of an unreinforced hollow masonry wall is defined to ensure structural integrity and stability. A projection that extends too far can create leverage and stress on the wall, leading to potential failure.

In this context, a projection of 1/2 of the wall thickness strikes a balance between functionality and safety. It allows for some architectural design flexibility, enabling the masonry to accommodate elements like ledges or architectural features while maintaining enough structural strength. Exceeding this limit could risk the overall stability of the wall, making 1/2 of the wall thickness the maximum allowable projection for corbelled brickwork in compliant construction practices.

This understanding aligns with building codes and best practices in masonry construction, ensuring that walls can withstand the loads and forces especially in unreinforced forms, which lack additional support mechanisms typically associated with reinforced masonry.