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nrk
SEFI Regulars
Joined: 20 Apr 2008
Posts: 20
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 Posted: Mon Nov 26, 2012 3:03 amPost subject: Seismic design of foundations |
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一些专家强调the fact that the seismic response/beaviour of foundations is what governs the seismic response of the superstructure. They insist that no damage can be permitted in the foundations and hence foundations should remain elastic. To this end, they propose to capacity-design the foundations such that the plastic hinges form in the base columns, rather than the foundations. These experts also insist on the accurate calculation of the moment capacity of the base columns taking into account the effect of lap splices in the evaluation of the moment capacity.
I invite the opinions of everyone, particularly the moderators and the resource persons on this issue. I also request them to throw some light on how IS codes tackle this issue.
_________________
Regards,
拉维。 |
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B.V.Harsoda
General Sponsor
Joined: 19 Jan 2009
Posts: 2328
Location: RAJKOT,GUJARAT, INDIA
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| Posted: Mon Nov 26, 2012 10:44 pmPost subject: |
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文章链接:
Dynamic Analysis of Tall Buildings Founded in Deep Fill Material
http://www.iitk.ac.in/nicee/wcee/article/4_vol2_A3-113.pdf
Regards,
Er. B. V. Harsoda |
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gautam chattopadhyay
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Joined: 17 Feb 2009
Posts: 129
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| Posted: Wed Nov 28, 2012 9:15 amPost subject: Seismic design of foundations |
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Earthquake is result of ground motion and foundation is the first element to experience the jerk. The experts who suggest conservative elastic design of the foundations are fully correct. The Russian method of designing earthquake resistant buildings was providing hinged base. This may be thought of up to which storey this structural system would be applicable. Our convention of providing fixed connection between column and foundation may be revisited.
On Mon, Nov 26, 2012 at 8:33 AM, nrk forum@www.buonovino.com)> wrote:
| Quote: |
一些专家强调the fact that the seismic response/beaviour of foundations is what governs the seismic response of the superstructure. They insist that no damage can be permitted in the foundations and hence foundations should remain elastic. To this end, they propose to capacity-design the foundations such that the plastic hinges form in the base columns, rather than the foundations. These experts also insist on the accurate calculation of the moment capacity of the base columns taking into account the effect of lap splices in the evaluation of the moment capacity.
I invite the opinions of everyone, particularly the moderators and the resource persons on this issue. I also request them to throw some light on how IS codes tackle this issue.
Regards,
拉维。
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jshukla
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Joined: 16 Jun 2008
Posts: 45
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| Posted: Thu Nov 29, 2012 4:29 pmPost subject: |
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Though i am student of Geotechnical Earthquake Engineering i didnt post any thing here. Please find one presentation regarding seismic design of pile foundation. It will serve two purpose of this forum for me. It also showcase use of advance finite element method for geotechnical engineering i.e. FLAC 3D which i was mentioning in some of the post of this e-conf.
I hope it helps.
jay
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Three dimensional lateral load analysis of pile foundation by Roger Hart PPT.pdf |
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