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Response Modification Factor is the ratio of base shear that would be developed in the lateral load resisting system to the design base shear. Check FAQs
R=2.5CaCs
R - Response Modification Factor?Ca - Seismic Coefficient for Velocity Dependent?Cs - Seismic Response Coefficient?

Response Modification Factor by Velocity Dependent Structures Example

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With units
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Here is how the Response Modification Factor by Velocity Dependent Structures equation looks like with Values.

Here is how the Response Modification Factor by Velocity Dependent Structures equation looks like with Units.

Here is how the Response Modification Factor by Velocity Dependent Structures equation looks like.

10.7143Edit=2.51.5Edit0.35Edit
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Response Modification Factor by Velocity Dependent Structures Solution

Follow our step by step solution on how to calculate Response Modification Factor by Velocity Dependent Structures?

FIRST Step Consider the formula
R=2.5CaCs
Next Step Substitute values of Variables
R=2.51.50.35
Next Step Prepare to Evaluate
R=2.51.50.35
Next Step Evaluate
R=10.7142857142857
LAST Step Rounding Answer
R=10.7143

Response Modification Factor by Velocity Dependent Structures Formula Elements

Variables
Response Modification Factor
Response Modification Factor is the ratio of base shear that would be developed in the lateral load resisting system to the design base shear.
Symbol: R
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Seismic Coefficient for Velocity Dependent
Seismic Coefficient for Velocity Dependent structures which are intermediate and long period structures.
Symbol: Ca
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Seismic Response Coefficient
Seismic Response Coefficient calculates reduced design seismic forces of structural system and deflection amplification factor to convert elastic lateral displacements to total lateral displacements.
Symbol: Cs
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other Formulas to find Response Modification Factor

​Go Response Modification Factor
R=1.2CvCsT23

Other formulas in Seismic Loads category

​Go Total Lateral Force Acting in Direction of each of Principal Axis
V=CsW
​Go Seismic Response Coefficient given Base Shear
Cs=VW
​Go Total Dead Load given Base Shear
W=VCs
​Go Seismic Response Coefficient given Fundamental Period
Cs=1.2CvRT23

How to Evaluate Response Modification Factor by Velocity Dependent Structures?

Response Modification Factor by Velocity Dependent Structures evaluator uses Response Modification Factor = 2.5*Seismic Coefficient for Velocity Dependent/Seismic Response Coefficient to evaluate the Response Modification Factor, The Response Modification Factor by Velocity Dependent Structures formula calculates the response modification factor when we have a prior info of seismic coefficient for velocity dependent structures. Response Modification Factor is denoted by R symbol.

How to evaluate Response Modification Factor by Velocity Dependent Structures using this online evaluator? To use this online evaluator for Response Modification Factor by Velocity Dependent Structures, enter Seismic Coefficient for Velocity Dependent (Ca) & Seismic Response Coefficient (Cs) and hit the calculate button.

FAQs on Response Modification Factor by Velocity Dependent Structures

What is the formula to find Response Modification Factor by Velocity Dependent Structures?
The formula of Response Modification Factor by Velocity Dependent Structures is expressed as Response Modification Factor = 2.5*Seismic Coefficient for Velocity Dependent/Seismic Response Coefficient. Here is an example- 10.71429 = 2.5*1.5/0.35.
How to calculate Response Modification Factor by Velocity Dependent Structures?
With Seismic Coefficient for Velocity Dependent (Ca) & Seismic Response Coefficient (Cs) we can find Response Modification Factor by Velocity Dependent Structures using the formula - Response Modification Factor = 2.5*Seismic Coefficient for Velocity Dependent/Seismic Response Coefficient.
What are the other ways to Calculate Response Modification Factor?
Here are the different ways to Calculate Response Modification Factor-
  • Response Modification Factor=1.2*Seismic Coefficient for Short Period Structures/(Seismic Response Coefficient*Fundamental Period^(2/3))OpenImg
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