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🌟Punching shear is a type of failure that occurs in flat slabs or foundations when they are subjected to high concentrated loads, such as columns.
The failure happens in a circular shape around the load, creating a cone-shaped perforation in the slab. This is a brittle and dangerous failure mode that requires careful design and verification
To prevent punching shear, engineers need to consider the following steps¹:
- Check if the concrete is strong enough alone;
- If not, check if the amount of reinforcement is reasonable;
- Design reinforcement if reasonable, if not, change the form of structure.
Some examples of reinforcement methods are using vertical bars, drop panels, or flared column heads². Alternatively, some codes of practice may allow more liberal design assumptions
Punching shear is a complex phenomenon that involves many factors, such as slab thickness, column size, load magnitude, concrete strength, and reinforcement ratio.
@etconp
🌟Punching shear is a type of failure that occurs in flat slabs or foundations when they are subjected to high concentrated loads, such as columns.
The failure happens in a circular shape around the load, creating a cone-shaped perforation in the slab. This is a brittle and dangerous failure mode that requires careful design and verification
To prevent punching shear, engineers need to consider the following steps¹:
- Check if the concrete is strong enough alone;
- If not, check if the amount of reinforcement is reasonable;
- Design reinforcement if reasonable, if not, change the form of structure.
Some examples of reinforcement methods are using vertical bars, drop panels, or flared column heads². Alternatively, some codes of practice may allow more liberal design assumptions
Punching shear is a complex phenomenon that involves many factors, such as slab thickness, column size, load magnitude, concrete strength, and reinforcement ratio.
@etconp
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