Friday, April 28, 2017
Different methods to strengthen the masonry walls
Strengthening of masonry walls is required to prevent failure and collapse during major earthquake or addition of extra load on buildings. Strengthening of masonry walls also may be required during rehabilitation of buildings.
Unreinforced masonry walls contain sufficient compressive strength, but they are breakable and very fragile under the influence of lateral loads which lead to tension in walls. On every occasion, tension forces operate on a masonry wall, it has a tendency for being cracked.
Under load bearing masonry buildings, loads from the building is delivered through walls and failure and collapse of such masonry walls can result in collapsing of the entire building.
Generally half brick thick masonry walls are applied as partitions in the interior of RC framed buildings. These half brick masonry walls are insecure to withstand the lateral forces throughout earthquake. Beyond plane strengthening of partitions can be accumulated jointly with lateral strengthening of building by arranging reinforced concrete jackets to the partitions.
The following processes are applied to strengthen Masonry walls: