Maximum Bending Moment in Bearing Plate Inside Chair Calculator

Maximum Bending Moment Formula:

\[ \text{MaximumBM} = \frac{P_{\text{bolt}} \times b_{\text{spacing}}}{8} \]

Maximum Bending Moment: N·m

1. What is Maximum Bending Moment in Bearing Plate Inside Chair?

Definition: This is the maximum internal bending moment that occurs in a bearing plate inside a chair when subjected to a bending load.

Purpose: It helps engineers determine the stress and required strength of bearing plates in bolted connections.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{MaximumBM} = \frac{P_{\text{bolt}} \times b_{\text{spacing}}}{8} \]

Where:

\( \text{MaximumBM} \) — Maximum bending moment (N·m)
\( P_{\text{bolt}} \) — Load on each bolt (N)
\( b_{\text{spacing}} \) — Spacing inside chairs (m)

Explanation: The formula calculates the maximum bending moment at the center of the bearing plate between chair supports.

3. Importance of Bending Moment Calculation

Details: Proper calculation ensures structural integrity of the bearing plate and prevents failure under load.

4. Using the Calculator

Tips: Enter the load on each bolt in Newtons and the spacing inside chairs in meters. All values must be > 0. Results include ±5% tolerance.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a ±5% tolerance?
A: The tolerance accounts for variations in material properties, manufacturing tolerances, and load distribution.

Q2: What's a typical spacing inside chairs?
A: Spacing depends on the application but typically ranges from 0.2m to 0.5m for standard bolted connections.

Q3: How do I determine the load on each bolt?
A: The load can be calculated by dividing the total load by the number of bolts, or from engineering specifications.

Q4: What if my bearing plate has multiple supports?
A: The formula changes for multiple supports. Consult engineering references for more complex configurations.

Q5: How does this relate to plate thickness?
A: The bending moment is used to calculate required plate thickness using material strength properties.