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Elastic deformation:
Structural members undergo elastic deformation due to load.
Brick masonry uneven loading
Deflection of large beam / slab
Unequal stress: central wall subjected to over loading
Portion A heavily loaded than portion B
Brickwork over RCC beam to be done after the beam attains deflection due to self weight.
Construction of brick masonry with pillar
Remedies
Grooving
Wiremesh lath
Horizontal Cracks in Brick Panels of a Framed Structure
Vertical Crack in Brick Panel Wall of Framed Structure Due to Expansion of Brickwork
When Length to Height Ratio of Partition is Large and there is no Door Opening.
When Length to Height Ratio of Partition is Small and there is no Opening
When Length to Height Ratio is Large and there is Central Door Opening
Cracking in a Partition Wall Supported on RCC Slab/ Beam, When Length to Height Ratio is Large and there is a Central- Door Opening:
In this case diagonal cracks occur because of combined action of flexural tension in the porton of masonry above the opening and self weight of unsupported masonry on the sides of the opening. Cracks start from lintels where thery are widest and get thinner as they travel upward.
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