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What is the characteristic value of a acceleration response spectrum ?

What is the characteristic value of a acceleration response spectrum ?

What is the characteristic value of a acceleration response spectrum ?

(OP)
I came across a term 'characteristic value of response spectrum' in the literature in relation to seismic design of structure. Can anyone kindly elaborate the meaning of this term used in earthquake engineering?
How can one find characteristic value of a design (acceleration) response spectrum ?

Ravi K

RE: What is the characteristic value of a acceleration response spectrum ?


I am not sure which seismic code you are looking ..

But if you look EC-8, the characteristic value of response spectrum is the peak ground acceleration for the subject reference return period..


RE: What is the characteristic value of a acceleration response spectrum ?

(OP)
@HTURKAK Thank you so much for replying. The question I have asked is irrespective of any seismic code. Can you please refer the location/clause number in EC-8 where i can find the definition of the 'Characteristic value of response spectrum'.

Thank You.

Ravi K

RE: What is the characteristic value of a acceleration response spectrum ?

Characteristic value of any load/action means "unfactored". This is the value before any factors of safety are applied. It is the same for the seismic action. According to the definition in §1.6.2. of Eurocode 8:

AEd = γI.AEk



RE: What is the characteristic value of a acceleration response spectrum ?

(OP)
Dear @NedGan76. Thank you for replying.

RK Sriwastav

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