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Minimum Width of Base Ring Calculator

Minimum Width of Base Ring Formula:

\[ L_b = \frac{F_b}{f_c} \]

N
N/mm²

1. What is Minimum Width of Base Ring?

Definition: The minimum width of base ring is typically determined based on the maximum compressive load that the base ring is expected to carry.

Purpose: It ensures proper load distribution between the vessel and its concrete foundation.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ L_b = \frac{F_b}{f_c} \]

Where:

  • \( L_b \) — Minimum Width of Base Ring (mm)
  • \( F_b \) — Total Compressive Load at Base Ring (N)
  • \( f_c \) — Stress in Bearing Plate and Concrete Foundation (N/mm²)

Explanation: The total compressive load is divided by the allowable stress to determine the minimum required width.

3. Importance of Base Ring Width Calculation

Details: Proper width calculation prevents excessive stress on the concrete foundation and ensures structural stability.

4. Using the Calculator

Tips: Enter the total compressive load (N) and allowable stress (N/mm²). All values must be > 0. The ±5% indicates typical tolerance.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a ±5% tolerance?
A: This accounts for variations in material properties and load estimations.

Q2: What's a typical stress value for concrete foundations?
A: Typically ranges from 2-4 N/mm², but depends on concrete grade and design requirements.

Q3: How do I determine the total compressive load?
A: It includes the weight of the vessel, contents, and any additional loads like wind or seismic forces.

Q4: Does this calculation consider safety factors?
A: No, the input stress value should already incorporate appropriate safety factors.

Q5: What if my calculated width is impractical?
A: Consider increasing foundation strength or redistributing loads with additional supports.

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