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Allowable Unit Load for Douglas Fir Lumber Formula

GoAllowable Unit Load for Hemlock Lumber Formula

GoAllowable Unit Load for Longleaf Yellow Pine Lumber Formula

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Allowable unit load is the maximum load that can be given on the cross-section or lumber in timber. Check FAQs

Q|A = 1200 \cdot (1 - 0.00000112 \cdot {(\frac{L}{d})}^{4})

Q|A - Allowable Unit Load?L - Length of Column?d - Least Dimension?

Allowable Unit Load for Douglas Fir Lumber Example

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Here is how the Allowable Unit Load for Douglas Fir Lumber equation looks like with Values.

Here is how the Allowable Unit Load for Douglas Fir Lumber equation looks like with Units.

Here is how the Allowable Unit Load for Douglas Fir Lumber equation looks like.

675 = 1200 \cdot (1 - 0.00000112 \cdot {(\frac{5000}{200})}^{4})

675MPa = 1200 \cdot (1 - 0.00000112 \cdot {(\frac{5000mm}{200mm})}^{4})

675 = 1200 \cdot (1 - 0.00000112 \cdot {(\frac{5000}{200})}^{4})

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Allowable Unit Load for Douglas Fir Lumber Solution

Follow our step by step solution on how to calculate Allowable Unit Load for Douglas Fir Lumber?

FIRST Step Consider the formula

Q|A = 1200 \cdot (1 - 0.00000112 \cdot {(\frac{L}{d})}^{4})

Next Step Substitute values of Variables

∴

Q|A = 1200 \cdot (1 - 0.00000112 \cdot {(\frac{5000mm}{200mm})}^{4})

Next Step Convert Units

∴

Q|A = 1200 \cdot (1 - 0.00000112 \cdot {(\frac{5m}{0.2m})}^{4})

Next Step Prepare to Evaluate

∴

Q|A = 1200 \cdot (1 - 0.00000112 \cdot {(\frac{5}{0.2})}^{4})

Next Step Evaluate

∴

Q|A = 675000000Pa

LAST Step Convert to Output's Unit

∴

Q|A = 675MPa

Allowable Unit Load for Douglas Fir Lumber Formula Elements

Variables

Allowable Unit Load

Allowable unit load is the maximum load that can be given on the cross-section or lumber in timber.

Symbol: Q|A

Measurement: PressureUnit: MPa

Note: Value should be greater than 0.

Formulas to find Allowable Unit Load

Length of Column

Length of Column is the distance between two points where a column gets its fixity of support so its movement is restrained in all directions.

Symbol: L

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Length of Column

Least Dimension

Least Dimension is the measure of the shortest side of the column.

Symbol: d

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Least Dimension

Other Formulas to find Allowable Unit Load

Go Allowable Unit Load for Hemlock Lumber

Q|A = 700 \cdot (1 - 0.00000097 \cdot {(\frac{L}{d})}^{4})

Go Allowable Unit Load for Longleaf Yellow Pine Lumber

Q|A = 1450 \cdot (1 - 0.00000162 \cdot {(\frac{L}{d})}^{4})

Go Allowable Unit Load for Southern Cypress Lumber

Q|A = 1100 \cdot (1 - 0.00000168 \cdot {(\frac{L}{d})}^{4})

How to Evaluate Allowable Unit Load for Douglas Fir Lumber?

Allowable Unit Load for Douglas Fir Lumber evaluator uses Allowable Unit Load = 1200*(1-0.00000112*(Length of Column/Least Dimension)^4) to evaluate the Allowable Unit Load, The Allowable Unit Load for Douglas Fir Lumber formula is defined as the maximum allowable load that can be carried by the cross-section of Douglas fir lumber. Allowable Unit Load is denoted by Q|A symbol.

How to evaluate Allowable Unit Load for Douglas Fir Lumber using this online evaluator? To use this online evaluator for Allowable Unit Load for Douglas Fir Lumber, enter Length of Column (L) & Least Dimension (d) and hit the calculate button.

FAQs on Allowable Unit Load for Douglas Fir Lumber

What is the formula to find Allowable Unit Load for Douglas Fir Lumber?

The formula of Allowable Unit Load for Douglas Fir Lumber is expressed as Allowable Unit Load = 1200*(1-0.00000112*(Length of Column/Least Dimension)^4). Here is an example- 0.000675 = 1200*(1-0.00000112*(5/0.2)^4).

How to calculate Allowable Unit Load for Douglas Fir Lumber?

With Length of Column (L) & Least Dimension (d) we can find Allowable Unit Load for Douglas Fir Lumber using the formula - Allowable Unit Load = 1200*(1-0.00000112*(Length of Column/Least Dimension)^4).

What are the other ways to Calculate Allowable Unit Load?

Here are the different ways to Calculate Allowable Unit Load-

Allowable Unit Load=700*(1-0.00000097*(Length of Column/Least Dimension)^4)
Allowable Unit Load=1450*(1-0.00000162*(Length of Column/Least Dimension)^4)
Allowable Unit Load=1100*(1-0.00000168*(Length of Column/Least Dimension)^4)

Can the Allowable Unit Load for Douglas Fir Lumber be negative?

No, the Allowable Unit Load for Douglas Fir Lumber, measured in Pressure cannot be negative.

Which unit is used to measure Allowable Unit Load for Douglas Fir Lumber?

Allowable Unit Load for Douglas Fir Lumber is usually measured using the Megapascal[MPa] for Pressure. Pascal[MPa], Kilopascal[MPa], Bar[MPa] are the few other units in which Allowable Unit Load for Douglas Fir Lumber can be measured.

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Allowable Unit Load for Douglas Fir Lumber Formula

​GoAllowable Unit Load for Hemlock Lumber Formula

​GoAllowable Unit Load for Longleaf Yellow Pine Lumber Formula

Allowable Unit Load for Douglas Fir Lumber Example

Allowable Unit Load for Douglas Fir Lumber Solution

Allowable Unit Load for Douglas Fir Lumber Formula Elements

Other Formulas to find Allowable Unit Load

How to Evaluate Allowable Unit Load for Douglas Fir Lumber?

FAQs on Allowable Unit Load for Douglas Fir Lumber

Variable Name

GoAllowable Unit Load for Hemlock Lumber Formula

GoAllowable Unit Load for Longleaf Yellow Pine Lumber Formula