Versions Compared

Old Version 1

changes.mady.by.user Zeynep Aladağ

Saved on

compared with

New Version 2

changes.mady.by.user oğuzcan hadim

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Response Spectrum Case Dialog

...

Specifications

Case name

Image Modified

A definition is given.

Damping ratio

Image Modified

The elastic acceleration spectrum is defined for 5% damping in the Turkish Seismic Code . A value of 0.05 is appropriate.

Modal analysis case to use

Image Modified

For which modal situation the behavior spectrum state will be applied is selected.

Directional combination

Image Modified

The modal combination produces a single value for each value of displacement, force, or stress, depending on the direction of motion. Certain methods are used and combined to produce a single result with the values ​​of these aspects. For the directional joining method, you can choose one of two methods.

SRSS ( Square Root of the Sum of Squares) Method

ABS (Absolute Sum) Method (Sum of Absolute Values)

FactorDetermine

Input Function

Image Removed

It is necessary to specify a Factor when ABS (Absolute Sum) Method (Sum of Absolute Values) is selected in the directional joining method. A value between 0 and 1 can be entered.

Factor=Entered value

R1, R2, R3 = Modal combination values ​​for each direction

R1 + Factor .( R2 + R3 )

R2 + Factor .( R1 + R3 )

R3 + Factor . ( R1 + R2 )

R= Spectral behavior, largest of R1, R2, R3

Function

Image Removed
Image Added

Determine the function of the response spectrum and the factor of the function

of the behavior spectrum

in the relevant direction. The values

​​determined

determined by the program during the analysis are in accordance with the

TDY 2007

TBDY 2018 regulation and you do not need to change them unless you have to specify otherwise.

factor = g. Ao. I (It is calculated automatically when the program is analyzed.)

Function= Behavior spectrum function that specifies the spectrum curve (automatically generated when analysis is done in the program)

g = gravitational acceleration

Ao = effective ground acceleration

I = Structural importance factor

This factor is defined as the gravitational acceleration value. The earthquake load reduction coefficient is taken into account when using the design spectrum.