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2004

 
This forum is locked: you cannot post, reply to, or edit topics.This topic is locked: you cannot edit posts or make replies.    www.sefindia.org Forum Index -> E-Conference 19th July 2004
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sdec.in
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Joined: 26 Jan 2003
Posts: 473

PostPosted: Mon Aug 16, 2004 9:25 am    Post subject: 2004 Reply with quote

The comments of Mr Rudra nevatia are very fine and make lot of sense;
however as we all know in real life we mostly encounter Rehab jobs where
no analysis, no design and mind you no drawings are available to tell us
what has gone into the building. I have recently been offered a project
of remodeling and extension of a small basement+3storeyed building where
one future floor provision is to be added and it is now proposed to have
a structural cladding and a new façade has to be built (jewelry of the
bulding--Dr S K Jain--are you listening!) but the only information that
we have is that the building construction appears to be GOOD and perhaps
not more than ten years old. It automatically becomes a non-starter
since the Client hasn’t heard of the NDT techniques or Strengthening
etc, is scared that it will be horribly expensive and as usual is in a
hurry!
In such a case, the structural engr has to tread v v carefully on a
judicious path decided by his judgement experience and economics w/o
sacrificing safety and I don’t think the Code is much useful either.
Sangeeta Wij

-----Original Message-----
From: rudra_nevatia@yahoo.com [mailto:rudra_nevatia@yahoo.com]
Sent: Monday, August 16, 2004 10:09 AM
To: sdec@bol.net.in
Subject: [Econf] Re: [Econf] Re: [Econf] Daily Digest Sun Aug 15
23:02:25 2004

*************************************************
SEFI e-Conference on draft code for "Seismic Evaluation & Strengthening
of Existing Buildings", August 09 to 21, 2004
*************************************************
While drafting the code, we must keep in mind that most of the building
stock
in India is non-engineered. Many of the buildings, supposedly designed
by
Engineers may not pass rudimentary checks for seismic design.

Secondly, methods of construction vary across the country. Recently, I
was
pleasantly surprised to find that Census of India, not only counts the
population but also records methods of construction and the condition of
buildings district-wise. A look at the latest figures of Census 2001
shows
that, given the diversity of building types, any attempt at extending
the draft
code to cover all of them would be a humongous task.

It is difficult to imagine that a comprehensive document with 'legal'
status
can be produced any time soon. May I therefore suggest that, in its
first
cycle, the draft code should cover the following in general terms,
without
getting into details of construction:

1. Performance levels
2. Methods of analysis (Linear/non-linear, static/dynamic)
3. Acceptance criteria

Based on these parameters, Research Institutes / Engineers can then work
out
methods of retrofitting for various building types.  

Rudra Nevatia


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