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finding exact location of center of rigidity

 
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 -> Past Discussions Year 2003
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anandrshah9
SEFI Member
SEFI Member


Joined: 26 Jan 2003
Posts: 13

PostPosted: Wed Nov 26, 2003 4:29 pm    Post subject: finding exact location of center of rigidity Reply with quote

respected seniors,

I have reffered indian other books and explanatory handbook on earthquake
code 1893-1984 for
finding out C.R. . in which some typical formulas are given.
But i have come know that along with normal understanding, shear , bending
and axial deformation
are also important for finding out C.R.

So, I would like to know more about it.

with regards,

Anand Shah
(ahmedabad, Dalal Mott Macdonald)


[quote]From: admin@sefindia.org
Reply-To: general@sefindia.org
To: anandrshah9@hotmail.com
Subject: Fw: STAAD question
Date: Mon Nov 24 19:24:27 2003

I think this was meant for the Discussion forum. (for posting to the
discussion forum please send your email to general@sefindia.org after
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Rudra Nevatia
...
...


Joined: 26 Jan 2003
Posts: 207
Location: Mumbai

PostPosted: Thu Nov 27, 2003 10:27 am    Post subject: finding exact location of center of rigidity Reply with quote

For multistory asymmetrical buildings, centers of rigidity at each story can be
found as follows:

1. Apply horizontal forces on the three dimensional model, restraining
rotations in plan.

2. Divide torsional moments about vertical axis of the building by story shear
to get eccentricity at each floor level.

Steps 1 and 2 should be carried out for each of the orthogonal directions.

Regrards,
Rudra Nevatia


--- anandrshah9@hotmail.com wrote:
[quote]respected seniors,

I have reffered indian other books and explanatory handbook on earthquake
code 1893-1984 for
finding out C.R. . in which some typical formulas are given.
But i have come know that along with normal understanding, shear , bending
and axial deformation
are also important for finding out C.R.

So, I would like to know more about it.

with regards,

Anand Shah
(ahmedabad, Dalal Mott Macdonald)


From: admin@sefindia.org
Reply-To: general@sefindia.org
To: anandrshah9@hotmail.com
Subject: Fw: STAAD question
Date: Mon Nov 24 19:24:27 2003

I think this was meant for the Discussion forum. (for posting to the
discussion forum please send your email to general@sefindia.org after
subscribing to it)

Posted via Email
Back to top
View user's profile Send private message
Rudra Nevatia
...
...


Joined: 26 Jan 2003
Posts: 207
Location: Mumbai

PostPosted: Thu Nov 27, 2003 10:27 am    Post subject: finding exact location of center of rigidity Reply with quote

For multistory asymmetrical buildings, centers of rigidity at each story can be
found as follows:

1. Apply horizontal forces on the three dimensional model, restraining
rotations in plan.

2. Divide torsional moments about vertical axis of the building by story shear
to get eccentricity at each floor level.

Steps 1 and 2 should be carried out for each of the orthogonal directions.

Regrards,
Rudra Nevatia


--- anandrshah9@hotmail.com wrote:
[quote]respected seniors,

I have reffered indian other books and explanatory handbook on earthquake
code 1893-1984 for
finding out C.R. . in which some typical formulas are given.
But i have come know that along with normal understanding, shear , bending
and axial deformation
are also important for finding out C.R.

So, I would like to know more about it.

with regards,

Anand Shah
(ahmedabad, Dalal Mott Macdonald)


From: admin@sefindia.org
Reply-To: general@sefindia.org
To: anandrshah9@hotmail.com
Subject: Fw: STAAD question
Date: Mon Nov 24 19:24:27 2003

I think this was meant for the Discussion forum. (for posting to the
discussion forum please send your email to general@sefindia.org after
subscribing to it)

Posted via Email
Back to top
View user's profile Send private message
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