Movement And Cracking In Long Masonry Walls

Ninety walls of 10 different types of masonry construction were tested under various combinations of vertical and transverse load. It is shown that the effect of vertical load and wall slenderness on transverse strength can be predicted by rational analysis. The analysis is based on established theory which has been extended to account for the properties of masonry. Similar methods of rational analysis have been adopted for the design of steel structures and are presently being considered for reinforced concrete structures.

Some researchers have studied damage of masonry buildings due to differential displacements, by assuming that masonry is a homogeneous isotropic material. To determine masonry crack evolution, further study needs to be done with more precise modeling of brick and mortar joints. In this study, by using the finite element code LS-DYNA, the masonry walls are modeled by using 8-node solid elements for the brick and mortar joints. The main objectives of the research are to study the effect of differential ground settlement on RC buildings with masonry infill walls with and without openings and to examine the associated evolution of crack patterns.

Providing practical guidance for homeowners whose properties have been affected by subsidence, or heave, or who are concerned by the potential risk of damage, this second edition has been expanded to include sections on other types of subsidence and causes of damage that are unrelated to foundation movement.