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The “Soft Story” Failure: Why Your Ground Floor Parking Needs Extra Care

In many modern homes in Kolaghat and Deulia, the ground floor is left open for parking (stilt floor), while the upper floors have heavy walls.

In many modern homes in Kolaghat and Deulia, the ground floor is left open for parking (stilt floor), while the upper floors have heavy walls. Engineers call this a “Soft Story.” During an earthquake, the ground floor pillars take the most punishment.

Protecting the Pillars

To prevent a “pancake collapse,” the ground floor pillars must be “closely confined.”

  1. Stirrup Spacing: The rings (stirrups) must be placed closer together at the top and bottom of the pillar.

  2. The 135-Degree Essential: Every single ring in a soft-story pillar MUST have a 135-degree hook made with a Mandrel. If the hooks are 90 degrees, they will pop open under the swaying motion, and the pillar will crumble.

Conclusion

Open parking levels are convenient, but they require expert reinforcement. Use Tata Superlinks and the De Son Mandrel to ensure your pillars are “Confined for Life.”

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