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Should "Z" factors change depending on Soil condit

 
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for_prof_arc at hotmai...
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PostPosted: Wed Oct 13, 2004 11:33 am    Post subject: Should "Z" factors change depending on Soil condit Reply with quote

From: Prof. A R Chandrasekaran, FNAE
To: All Concerned

I have recently raised some concerns about outcome of research on
Microzonation. It appears that, from the private corrspondence I am having
with various persons, Microzonation studies would indeed indicate that soil
sites may attract forces by several orders of magnitude greater than as
compared to rock sites.

I feel that IS:1893 Committee should immediately debate about this issue
without delay as it will be a disaster if engineers are told later that all
their design, executed faithfully and honestly according to IS:1893-2002 is
wrong if located on soil sites and now require retro-fitting.

The BIS should protect the engineers from any legal tangle later on, if in
future, recommendations for increased forces in soil sites take place.

May be I am crying "Wolf" now, but it is always better be fore-warned.

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