1. What is Allowable Bearing Stress on Milled Stiffeners?

Definition: This calculator determines the allowable bearing stress for milled stiffeners and other steel parts based on the tensile strength of the connected material.

Purpose: It helps structural engineers and designers ensure safe load-bearing capacity in steel connections.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( F_p \) — Allowable bearing stress (MPa)
• \( F_u \) — Tensile strength of connected part (MPa)
• ±5% — Typical tolerance range (adjustable)

Explanation: The allowable stress is calculated as 80% of the tensile strength, with an optional tolerance range applied.

3. Importance of Allowable Bearing Stress Calculation

Details: Proper calculation ensures structural integrity, prevents connection failures, and complies with engineering standards.

4. Using the Calculator

Tips: Enter the tensile strength of the connected material in MPa and the desired tolerance percentage. All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the factor 0.80 used?
A: The 0.80 factor is a safety coefficient specified in many design codes to account for material variability and safety margins.

Q2: What's a typical tolerance percentage?
A: ±5% is common, but this can vary based on project specifications and material properties.

Q3: When would I change the tolerance?
A: Adjust tolerance based on material quality, inspection requirements, or specific project specifications.

Q4: How do I find the tensile strength?
A: Tensile strength is typically provided in material specifications (e.g., ASTM standards for steel).

Q5: Does this apply to all steel connections?
A: This formula specifically applies to milled stiffeners and similar steel parts - other connections may use different factors.

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