👉Punching reinforcement bar in flat slab:

💫Is reffering to extra reinforcement provided around columns in a flat slab to resist punching shear failure.

🚧1.What is Punching Shear in Slabs?

⏺In flat slabs (slabs directly supported on columns, without beams), the concentrated load from a column can cause the slab to fail by punching through around the column area.

⏺This type of failure is sudden and brittle → dangerous.

🚧2.Reinforcement Against Punching Shear

⏺To strengthen the slab near columns, civil engineers provide punching reinforcement in addition to normal flexural reinforcement.

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