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Continuous Beam Calculator

Continuous Beam Deflection Formula:

\[ \delta_{max} = \frac{q L^4}{185 E I} \]

N/m
m
Pa
m⁴

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1. What is the Continuous Beam Deflection Formula?

The continuous beam deflection formula calculates the maximum deflection for a beam spanning over two equal spans with a uniform load. This formula is essential for structural engineering to ensure beams meet deflection requirements under load.

2. How Does the Calculator Work?

The calculator uses the continuous beam deflection formula:

\[ \delta_{max} = \frac{q L^4}{185 E I} \]

Where:

Explanation: The formula calculates the maximum vertical displacement of a continuous beam with two equal spans under uniform loading conditions.

3. Importance of Maximum Deflection Calculation

Details: Calculating maximum deflection is crucial for structural design to ensure that beams and structures remain within acceptable deflection limits, preventing structural failure and ensuring serviceability.

4. Using the Calculator

Tips: Enter uniform load in N/m, span length in meters, modulus of elasticity in Pascals, and moment of inertia in meters to the fourth power. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What types of beams does this formula apply to?
A: This formula applies specifically to continuous beams with two equal spans under uniform loading conditions.

Q2: What are typical deflection limits for beams?
A: Deflection limits vary by application, but common limits are L/360 for live loads and L/240 for total loads, where L is the span length.

Q3: How does material affect deflection?
A: Materials with higher modulus of elasticity (E) will deflect less under the same loading conditions.

Q4: What if my beam has different span lengths?
A: This formula is specifically for two equal spans. Different span configurations require different deflection formulas.

Q5: How accurate is this formula for real-world applications?
A: This formula provides a theoretical maximum deflection. Real-world applications may require additional factors such as safety factors and consideration of boundary conditions.

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