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Importance Factor using Velocity Pressure Formula

GoImportance Factor given Velocity Pressure Formula

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Importance Factor for End Use is the factor whose value lies in range 0.8 to 1.2. Check FAQs

I = \frac{q}{0.00256 \cdot K z \cdot K zt \cdot K d \cdot {V B}^{2}}

I - Importance Factor for End Use?q - Velocity Pressure?K_z - Velocity Exposure Coefficient?K_zt - Topographic Factor?K_d - Wind Directionality Factor?V_B - Basic Wind Speed?

Importance Factor using Velocity Pressure Example

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Here is how the Importance Factor using Velocity Pressure equation looks like with Values.

Here is how the Importance Factor using Velocity Pressure equation looks like with Units.

Here is how the Importance Factor using Velocity Pressure equation looks like.

0.8 = \frac{20}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot {29.6107}^{2}}

0.8 = \frac{20pdl/ft²}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot {29.6107m/s}^{2}}

0.8 = \frac{20}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot {29.6107}^{2}}

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Importance Factor using Velocity Pressure Solution

Follow our step by step solution on how to calculate Importance Factor using Velocity Pressure?

FIRST Step Consider the formula

I = \frac{q}{0.00256 \cdot K z \cdot K zt \cdot K d \cdot {V B}^{2}}

Next Step Substitute values of Variables

∴

I = \frac{20pdl/ft²}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot {29.6107m/s}^{2}}

Next Step Convert Units

∴

I = \frac{29.7633Pa}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot {29.6107m/s}^{2}}

Next Step Prepare to Evaluate

∴

I = \frac{29.7633}{0.00256 \cdot 0.85 \cdot 25 \cdot 0.78 \cdot {29.6107}^{2}}

Next Step Evaluate

∴

I = 0.799999881407085

LAST Step Rounding Answer

∴

I = 0.8

Importance Factor using Velocity Pressure Formula Elements

Variables

Importance Factor for End Use

Importance Factor for End Use is the factor whose value lies in range 0.8 to 1.2.

Symbol: I

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Importance Factor for End Use

Velocity Pressure

Velocity Pressure is the pressure required to accelerate air from zero velocity to some velocity and is proportional to the kinetic energy of the air stream.

Symbol: q

Measurement: PressureUnit: pdl/ft²

Note: Value should be greater than 0.

Formulas to find Velocity Pressure

Velocity Exposure Coefficient

Velocity Exposure Coefficient is evaluated at some height z.

Symbol: K_z

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Velocity Exposure Coefficient

Topographic Factor

Topographic Factor are also called indirect factors as they influence the growth and development of organisms by bringing variations in climatic factors.

Symbol: K_zt

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Topographic Factor

Wind Directionality Factor

Wind Directionality Factor reflects the fact that the climatologically and aerodynamically or dynamically most unfavourable wind directions typically do not coincide.

Symbol: K_d

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Wind Directionality Factor

Basic Wind Speed

Basic Wind Speed is the wind speed corresponding to a 3-s gust speed at 33 ft above the ground in Exposure C.

Symbol: V_B

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Basic Wind Speed

Other Formulas to find Importance Factor for End Use

Go Importance Factor given Velocity Pressure

I = \frac{q}{0.00256 \cdot K z \cdot K zt \cdot K d \cdot {V B}^{2}}

Other formulas in Wind Loads category

Go Equivalent Static Design Wind Pressure

p = q \cdot G \cdot C p

Go Velocity Pressure using Wind Pressure

q = \frac{p}{G \cdot C p}

Go Gust Response Factor using Wind Pressure

G = \frac{p}{q \cdot C p}

Go Pressure Coefficient using Wind Pressure

C p = \frac{p}{q \cdot G}

How to Evaluate Importance Factor using Velocity Pressure?

Importance Factor using Velocity Pressure evaluator uses Importance Factor for End Use = Velocity Pressure/(0.00256*Velocity Exposure Coefficient*Topographic Factor*Wind Directionality Factor*Basic Wind Speed^2) to evaluate the Importance Factor for End Use, The Importance Factor using Velocity Pressure is defined as to find the Importance factor for end-use which is essentially a multiplier that increases or decreases the base design loads. Importance Factor for End Use is denoted by I symbol.

How to evaluate Importance Factor using Velocity Pressure using this online evaluator? To use this online evaluator for Importance Factor using Velocity Pressure, enter Velocity Pressure (q), Velocity Exposure Coefficient (K_z), Topographic Factor (K_zt), Wind Directionality Factor (K_d) & Basic Wind Speed (V_B) and hit the calculate button.

FAQs on Importance Factor using Velocity Pressure

What is the formula to find Importance Factor using Velocity Pressure?

The formula of Importance Factor using Velocity Pressure is expressed as Importance Factor for End Use = Velocity Pressure/(0.00256*Velocity Exposure Coefficient*Topographic Factor*Wind Directionality Factor*Basic Wind Speed^2). Here is an example- 0.397639 = 29.7632788711526/(0.00256*0.85*25*0.78*29.6107^2).

How to calculate Importance Factor using Velocity Pressure?

With Velocity Pressure (q), Velocity Exposure Coefficient (K_z), Topographic Factor (K_zt), Wind Directionality Factor (K_d) & Basic Wind Speed (V_B) we can find Importance Factor using Velocity Pressure using the formula - Importance Factor for End Use = Velocity Pressure/(0.00256*Velocity Exposure Coefficient*Topographic Factor*Wind Directionality Factor*Basic Wind Speed^2).

What are the other ways to Calculate Importance Factor for End Use?

Here are the different ways to Calculate Importance Factor for End Use-

Importance Factor for End Use=Velocity Pressure/(0.00256*Velocity Exposure Coefficient*Topographic Factor*Wind Directionality Factor*Basic Wind Speed^2)

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Importance Factor using Velocity Pressure Formula

​GoImportance Factor given Velocity Pressure Formula

Importance Factor using Velocity Pressure Example

Importance Factor using Velocity Pressure Solution

Importance Factor using Velocity Pressure Formula Elements

Other Formulas to find Importance Factor for End Use

Other formulas in Wind Loads category

How to Evaluate Importance Factor using Velocity Pressure?

FAQs on Importance Factor using Velocity Pressure

Variable Name

GoImportance Factor given Velocity Pressure Formula