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sukanta.adhikari General Sponsor
Joined: 26 Jan 2003 Posts: 726
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Posted: Mon Jun 22, 2020 6:35 am Post subject: Mettur Tamilnadu-Seismic zone |
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I have a confusion regarding seismic zone of Mettur,Tamil nadu.
As per wiki Mettur is an industrial and tourism town located in the Salem district in the state of Tamil Nadu, India. It is best known for the Mettur Dam.
As per bmtpc /IS 1893 salem falls in zone III
How ever some website show Mettur dam is in zone II
http://59.179.19.250/wrpinfo/index.php?title=Mettur_Dam_D00842
I am confused..Within a district also zone is varying
can any one help
Regards
S Adhikari
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rajancivildesign@gmail.co ...
Joined: 26 Jan 2011 Posts: 564
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Posted: Wed Jun 24, 2020 2:34 pm Post subject: Mettur Dam in Seismic zone III |
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Sir,
Previously Salem was in seismic zone II. Now as per IS1893 part 1-2016 it comes under seismic zone III. Since Mettur Dam is part of Salem district it is under zone III only. in TNEB, in all our project we mentioned zone III for design puropse.
V.M.RAJAN
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sukanta.adhikari General Sponsor
Joined: 26 Jan 2003 Posts: 726
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Posted: Thu Jun 25, 2020 4:17 am Post subject: Re: Mettur Dam in Seismic zone III |
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Sir
Thanks for the information... these website are not updated.
.There is very fine line between zone II and III in that region.
Regards
S Adhikari
rajancivildesign@gmail.co wrote: | Sir,
Previously Salem was in seismic zone II. Now as per IS1893 part 1-2016 it comes under seismic zone III. Since Mettur Dam is part of Salem district it is under zone III only. in TNEB, in all our project we mentioned zone III for design puropse.
V.M.RAJAN |
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Dr. N. Subramanian General Sponsor
Joined: 21 Feb 2008 Posts: 5538 Location: Gaithersburg, MD, U.S.A.
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Posted: Thu Jun 25, 2020 6:51 pm Post subject: Re: Mettur Dam in Seismic zone III |
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Dear Er Rajan and Er Adhikari,
Even in the 2002 version of the code (5th Rev) Salem was in seismic Zone III only with Zone factor = 0.16.
Only Cuddalore was mentioned as seismic zone III in the 2002 version of the code (5th Rev), but later corrected as Zone II with Zone factor =0.10.
With that correction, Annex E of Revision 6 of IS 1893 (Part 1) is the same as in the 2002 version of the code (5th Rev)
Warm regards
NS
rajancivildesign@gmail.co wrote: | Sir,
Previously Salem was in seismic zone II. Now as per IS1893 part 1-2016 it comes under seismic zone III. Since Mettur Dam is part of Salem district it is under zone III only. in TNEB, in all our project we mentioned zone III for design puropse.
V.M.RAJAN |
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sukanta.adhikari General Sponsor
Joined: 26 Jan 2003 Posts: 726
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Posted: Mon Jun 29, 2020 6:01 am Post subject: Re: Mettur Dam in Seismic zone III |
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Thanks for the information sir.
Actually I have been to Mettur once for a Power plant project.
It was a for a renowned chemical plant in Mettur. I have designed it for zone III only in 2008.
But somewhere... some body mentioned it as zone II and some website still shows it as zone II..so i got a bit confused.
Regards
S Adhikari
Dr. N. Subramanian wrote: | Dear Er Rajan and Er Adhikari,
Even in the 2002 version of the code (5th Rev) Salem was in seismic Zone III only with Zone factor = 0.16.
Only Cuddalore was mentioned as seismic zone III in the 2002 version of the code (5th Rev), but later corrected as Zone II with Zone factor =0.10.
With that correction, Annex E of Revision 6 of IS 1893 (Part 1) is the same as in the 2002 version of the code (5th Rev)
Warm regards
NS
rajancivildesign@gmail.co wrote: | Sir,
Previously Salem was in seismic zone II. Now as per IS1893 part 1-2016 it comes under seismic zone III. Since Mettur Dam is part of Salem district it is under zone III only. in TNEB, in all our project we mentioned zone III for design puropse.
V.M.RAJAN |
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