www.sefindia.org

[shyam-kaware]

Dear Sefians,


As per Euro code 8 we have to consider Behaviour factor to work out the total horizontal siesmic forces on the structure. As code suggests to Use q = 4 to 6 as a factor for Dissipitive structures (DCM & DCH structures) but when we use 4 as a factor code asks us to use ductile connections or dissipative structural connection but dont provide any information about dissipative connection to be (Except the use of b/t ration & bracings as dissipative measures).

I have serched in various manuals and asked many seniors but no one is sure about the value. lots of people consideres q =1.5 as a factor to be on conservative side but use of this factor gives very huge earthquake forces making structure very uneconmical.

I request to all the experienced members to share there views and guide me.

Thanks in advance

[rahul.leslie]

I'm not sure, but is this (see pic. attached) what you are talking about?

Rahul Leslie

[shyam-kaware]

Dear Er Rahul,

Thank you For the reply.

Yes, you are right this is it; But for steel structures which factor to be used and how ( with the required detailing)  is the question.

Reagrds,
Shyam Kaware

[rahul.leslie]

Please find attachment

[bluebeard]

Can you maybe provide reference where you get these pictures from? I really need the whole document to review.

Thanks in advance