Answer / sam

at the corners mainly torsions are acting,,thats why need
extra reinforcement mesh..

Answer / manpreet

Because in opening corners, there is more tension in the
internal part of the corner so it tends to develope cracks.
First crack developes at the re-entrant corner.

Answer / yaswanth kumar

Due to the load acting on the lintel the -ve moments are
developed at the corners. due to this -ve moments diagnal
cracks are developed at the opening corners.

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