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Behaviour Factor - q as per Eurocode 8

 
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shyam-kaware
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Joined: 12 Jul 2010
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Location: Ahmednagar

PostPosted: Mon Jan 09, 2012 11:18 am    Post subject: Behaviour Factor - q as per Eurocode 8 Reply with quote

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
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rahul.leslie
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PostPosted: Tue Jan 10, 2012 4:33 pm    Post subject: Reply with quote

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

Rahul Leslie



EC8.GIF
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EC8.GIF


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shyam-kaware
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Location: Ahmednagar

PostPosted: Wed Jan 11, 2012 4:37 am    Post subject: Reply with quote

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
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rahul.leslie
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PostPosted: Wed Jan 11, 2012 12:31 pm    Post subject: Reply with quote

Please find attachment


EC8_Steel.GIF
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EC8_Steel.GIF


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bluebeard
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Joined: 26 Jan 2022
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PostPosted: Wed Jan 26, 2022 6:26 am    Post subject: Reply with quote

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

Thanks in advance
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