Velocity Pressure at given Point as given by ASCE 7 Calculator

✖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.ⓘ Velocity Pressure [q]			+10% -10%
✖The Gust Response Factor is to account for fluctuations in wind speed.ⓘ Gust Response Factor [G]			+10% -10%
✖The External Pressure Coefficient is the coefficient for the external pressure.ⓘ External Pressure Coefficient [C_ep]			+10% -10%
✖Wind Pressure is the pressure due to the wind.ⓘ Wind Pressure [p]			+10% -10%
✖Internal Pressure Coefficient refers to the pressure inside a building, perhaps due to flow past or through openings in the structure.ⓘ Internal Pressure Coefficient [GC_pt]			+10% -10%

✖Velocity Pressure at Point is the pressure due to the velocity of wind at some point.ⓘ Velocity Pressure at given Point as given by ASCE 7 [q_i]

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Formula

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Velocity Pressure at given Point as given by ASCE 7

Formula

`"q"_{"i"} = (("q"*"G"*"C"_{"ep"})-"p")/"GC"_{"pt"}`

Example

`"8.703297pdl/ft²"=(("20pdl/ft²"*"1.20"*"0.95")-"14.88pdl/ft²")/"0.91"`

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Velocity Pressure at given Point as given by ASCE 7 Solution

STEP 0: Pre-Calculation Summary

Formula Used

Velocity Pressure at Point = ((Velocity Pressure*Gust Response Factor*External Pressure Coefficient)-Wind Pressure)/Internal Pressure Coefficient
q_i = ((q*G*C_ep)-p)/GC_pt
This formula uses 6 Variables

Variables Used

Velocity Pressure at Point - (Measured in Pascal) - Velocity Pressure at Point is the pressure due to the velocity of wind at some point.
Velocity Pressure - (Measured in Pascal) - 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.
Gust Response Factor - The Gust Response Factor is to account for fluctuations in wind speed.
External Pressure Coefficient - The External Pressure Coefficient is the coefficient for the external pressure.
Wind Pressure - (Measured in Pascal) - Wind Pressure is the pressure due to the wind.
Internal Pressure Coefficient - Internal Pressure Coefficient refers to the pressure inside a building, perhaps due to flow past or through openings in the structure.

STEP 1: Convert Input(s) to Base Unit

Velocity Pressure: 20 Poundal per Square Foot --> 29.7632788711526 Pascal (Check conversion here)
Gust Response Factor: 1.2 --> No Conversion Required
External Pressure Coefficient: 0.95 --> No Conversion Required
Wind Pressure: 14.88 Poundal per Square Foot --> 22.1438794801375 Pascal (Check conversion here)
Internal Pressure Coefficient: 0.91 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

q_i = ((q*G*C_ep)-p)/GC_pt --> ((29.7632788711526*1.2*0.95)-22.1438794801375)/0.91

Evaluating ... ...

q_i = 12.9519323439302

STEP 3: Convert Result to Output's Unit

12.9519323439302 Pascal -->8.70329670329673 Poundal per Square Foot (Check conversion here)

FINAL ANSWER

8.70329670329673 ≈ 8.703297 Poundal per Square Foot <-- Velocity Pressure at Point

(Calculation completed in 00.018 seconds)

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Created by Mridul Sharma

Indian Institute of Information Technology (IIIT), Bhopal

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National Institute of Technology Karnataka (NITK), Surathkal

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< 16 Wind Loads Calculators

Basic Wind given Velocity Pressure

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

Wind Directionality Factor given Velocity Pressure

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

Topographic Factor given Velocity Pressure

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

Importance Factor given Velocity Pressure

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

Importance Factor using Velocity Pressure

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

Velocity Pressure

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

External Pressure Coefficient as given by ASCE 7

Go External Pressure Coefficient = (Wind Pressure+Velocity Pressure at Point*Internal Pressure Coefficient)/(Gust Response Factor*Velocity Pressure)

Gust Effect Factor as given by ASCE 7

Go Gust Response Factor = (Wind Pressure+Velocity Pressure at Point*Internal Pressure Coefficient)/(Velocity Pressure*External Pressure Coefficient)

Velocity Pressure at given Point as given by ASCE 7

Go Velocity Pressure at Point = ((Velocity Pressure*Gust Response Factor*External Pressure Coefficient)-Wind Pressure)/Internal Pressure Coefficient

Internal Pressure Coefficient as given by ASCE 7

Go Internal Pressure Coefficient = ((Velocity Pressure*Gust Response Factor*External Pressure Coefficient)-Wind Pressure)/Velocity Pressure at Point

Velocity Pressure as given by ASCE 7

Go Velocity Pressure = (Wind Pressure+Velocity Pressure at Point*Internal Pressure Coefficient)/(Gust Response Factor*External Pressure Coefficient)

Wind Pressure as given by ASCE 7

Go Wind Pressure = Velocity Pressure*Gust Response Factor*External Pressure Coefficient-Velocity Pressure at Point*Internal Pressure Coefficient

Gust Response Factor using Wind Pressure

Go Gust Response Factor = Wind Pressure/(Velocity Pressure*Pressure Coefficient)

Pressure Coefficient using Wind Pressure

Go Pressure Coefficient = Wind Pressure/(Velocity Pressure*Gust Response Factor)

Velocity Pressure using Wind Pressure

Go Velocity Pressure = Wind Pressure/(Gust Response Factor*Pressure Coefficient)

Equivalent Static Design Wind Pressure

Go Wind Pressure = Velocity Pressure*Gust Response Factor*Pressure Coefficient

Velocity Pressure at given Point as given by ASCE 7 Formula

Velocity Pressure at Point = ((Velocity Pressure*Gust Response Factor*External Pressure Coefficient)-Wind Pressure)/Internal Pressure Coefficient
q_i = ((q*G*C_ep)-p)/GC_pt

What is Gust Response Factor?

The gust response factor is a measure of the effective wind loading on a structure and is intended to translate the dynamic response phenomena due to gust loading into relatively simpler static design criteria.

How to Calculate Velocity Pressure at given Point as given by ASCE 7?

Velocity Pressure at given Point as given by ASCE 7 calculator uses Velocity Pressure at Point = ((Velocity Pressure*Gust Response Factor*External Pressure Coefficient)-Wind Pressure)/Internal Pressure Coefficient to calculate the Velocity Pressure at Point, The Velocity Pressure at given Point as given by ASCE 7 is defined as the velocity pressure at a given point for determining the internal pressure as per ASCE 7 Method II. Velocity Pressure at Point is denoted by q_i symbol.

How to calculate Velocity Pressure at given Point as given by ASCE 7 using this online calculator? To use this online calculator for Velocity Pressure at given Point as given by ASCE 7, enter Velocity Pressure (q), Gust Response Factor (G), External Pressure Coefficient (C_ep), Wind Pressure (p) & Internal Pressure Coefficient (GC_pt) and hit the calculate button. Here is how the Velocity Pressure at given Point as given by ASCE 7 calculation can be explained with given input values -> 5.913327 = ((29.7632788711526*1.2*0.95)-22.1438794801375)/0.91.

FAQ

What is Velocity Pressure at given Point as given by ASCE 7?

The Velocity Pressure at given Point as given by ASCE 7 is defined as the velocity pressure at a given point for determining the internal pressure as per ASCE 7 Method II and is represented as q_i = ((q*G*C_ep)-p)/GC_pt or Velocity Pressure at Point = ((Velocity Pressure*Gust Response Factor*External Pressure Coefficient)-Wind Pressure)/Internal Pressure Coefficient. 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, The Gust Response Factor is to account for fluctuations in wind speed, The External Pressure Coefficient is the coefficient for the external pressure, Wind Pressure is the pressure due to the wind & Internal Pressure Coefficient refers to the pressure inside a building, perhaps due to flow past or through openings in the structure.

How to calculate Velocity Pressure at given Point as given by ASCE 7?

The Velocity Pressure at given Point as given by ASCE 7 is defined as the velocity pressure at a given point for determining the internal pressure as per ASCE 7 Method II is calculated using Velocity Pressure at Point = ((Velocity Pressure*Gust Response Factor*External Pressure Coefficient)-Wind Pressure)/Internal Pressure Coefficient. To calculate Velocity Pressure at given Point as given by ASCE 7, you need Velocity Pressure (q), Gust Response Factor (G), External Pressure Coefficient (C_ep), Wind Pressure (p) & Internal Pressure Coefficient (GC_pt). With our tool, you need to enter the respective value for Velocity Pressure, Gust Response Factor, External Pressure Coefficient, Wind Pressure & Internal Pressure Coefficient and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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