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Lateral Seismic Force Formula

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Lateral Seismic Force is the seismic force that acts in the direction parallel to ground and perpendicular to the direction of gravitational pull of earth. Check FAQs

F x = C ux \cdot V

F_x - Lateral Seismic Force?C_ux - Vertical Distribution Factor?V - Lateral Force?

Lateral Seismic Force Example

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Here is how the Lateral Seismic Force equation looks like with Values.

Here is how the Lateral Seismic Force equation looks like with Units.

Here is how the Lateral Seismic Force equation looks like.

44090.7727 = 1.18 \cdot 8.4

44090.7727N = 1.18 \cdot 8.4kipf

44090.7727 = 1.18 \cdot 8.4

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Lateral Seismic Force Solution

Follow our step by step solution on how to calculate Lateral Seismic Force?

FIRST Step Consider the formula

F x = C ux \cdot V

Next Step Substitute values of Variables

∴

F x = 1.18 \cdot 8.4kipf

Next Step Convert Units

∴

F x = 1.18 \cdot 37365.0616N

Next Step Prepare to Evaluate

∴

F x = 1.18 \cdot 37365.0616

Next Step Evaluate

∴

F x = 44090.7726504053N

LAST Step Rounding Answer

∴

F x = 44090.7727N

Lateral Seismic Force Formula Elements

Variables

Lateral Seismic Force

Lateral Seismic Force is the seismic force that acts in the direction parallel to ground and perpendicular to the direction of gravitational pull of earth.

Symbol: F_x

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Lateral Seismic Force

Vertical Distribution Factor

Vertical Distribution Factor is the ratio of lateral seismic force to lateral force.

Symbol: C_ux

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Vertical Distribution Factor

Lateral Force

Lateral Force is live loads that are applied parallel to the ground; that is, they are horizontal forces acting on a structure.

Symbol: V

Measurement: ForceUnit: kipf

Note: Value should be greater than 0.

Formulas to find Lateral Force

Other formulas in Seismic Loads category

Go Total Lateral Force Acting in Direction of each of Principal Axis

V = C s \cdot W

Go Seismic Response Coefficient given Base Shear

C s = \frac{V}{W}

Go Total Dead Load given Base Shear

W = \frac{V}{C s}

Go Seismic Response Coefficient given Fundamental Period

C s = 1.2 \cdot \frac{C v}{R \cdot T^{\frac{2}{3}}}

How to Evaluate Lateral Seismic Force?

Lateral Seismic Force evaluator uses Lateral Seismic Force = Vertical Distribution Factor*Lateral Force to evaluate the Lateral Seismic Force, The Lateral Seismic Force is defined as the force at any floor level as lateral force should be distributed over the height of the structure as concentrated loads at each floor level or storey. Lateral Seismic Force is denoted by F_x symbol.

How to evaluate Lateral Seismic Force using this online evaluator? To use this online evaluator for Lateral Seismic Force, enter Vertical Distribution Factor (C_ux) & Lateral Force (V) and hit the calculate button.

FAQs on Lateral Seismic Force

What is the formula to find Lateral Seismic Force?

The formula of Lateral Seismic Force is expressed as Lateral Seismic Force = Vertical Distribution Factor*Lateral Force. Here is an example- 44090.77 = 1.18*37365.0615681401.

How to calculate Lateral Seismic Force?

With Vertical Distribution Factor (C_ux) & Lateral Force (V) we can find Lateral Seismic Force using the formula - Lateral Seismic Force = Vertical Distribution Factor*Lateral Force.

Can the Lateral Seismic Force be negative?

No, the Lateral Seismic Force, measured in Force cannot be negative.

Which unit is used to measure Lateral Seismic Force?

Lateral Seismic Force is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Lateral Seismic Force can be measured.

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Lateral Seismic Force Formula

Lateral Seismic Force Example

Lateral Seismic Force Solution

Lateral Seismic Force Formula Elements

Other formulas in Seismic Loads category

How to Evaluate Lateral Seismic Force?

FAQs on Lateral Seismic Force

Variable Name