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Raftar
SEFI Member
Joined: 20 Jan 2021
Posts: 1
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 Posted: Wed Jan 20, 2021 11:23 pm Post subject: R factor in code is.1893 |
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Anyone, please a suggestion here??
In the 5th revision of seismic code IS.1893, the Response Reduction Factor (R) for masonry with horizontal bands is set at 2.5 (table 7 on page 23).
In the most recent 6th revision of 2016 however, (R) for masonry with bands is more conservatively reduced to 2.0 (table 9 on page 20).
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Obviously there must be a reason for this, does anyone have any idea what the figures in this table are based on?
Is it based on rules of thumb?
Or is it based on actual calculations?
Does anyone know who worked on this; who should I approach that was involved in writing this code?
Thank you.
Last edited by Raftar on Sat Jan 23, 2021 4:28 am; edited 1 time in total |
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Dr. N. Subramanian
General Sponsor
Joined: 21 Feb 2008
Posts: 5442
Location: Gaithersburg, MD, U.S.A.
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| Posted: Fri Jan 22, 2021 1:56 am Post subject: Re: R factor in code is.1893 |
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Check this:https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.nepjol.info/index.php/NJST/article/view/29802/23942%23:~:text%3DResponse%2520reduction%2520factor%2520for%2520all,is%2520sufficient%2520for%2520masonry%2520structure.&ved=2ahUKEwi28vvbtq7uAhUCy1kKHcT7B1MQFjABegQIAhAF&usg=AOvVaw3LIy_DkhZYTKF4J4pG1Pp_&cshid=1611280521902
| Raftar wrote: | Anyone, please a suggestion here??
In the 5th revision of seismic code IS.1893, the Response Reduction Factor (R) for masonry with horizontal bands is set at 2.5 (table 7 on page 23).
In the most recent 6th revision of 2016 however, (R) for masonry with bands is more conservatively reduced to 2.0 (table 9 on page 20).
Obviously there must be a reason for this, does anyone have any idea what the figures in this table are based on?
Is it based on rules of thumb?
Or is it based on actual calculations?
Does anyone know who worked on this; who should I approach that was involved in writing this code?
Thank you. |
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