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Replies: 5
Views: 4236

PostForum: SEFI General Discussion   Posted: Thu May 18, 2023 1:30 pm   Subject: QUERIES RELATED TO WIND CALCULATION
Wind flow above Ground level.Hence height calculation to be from ground level.
Based on height wind intensity keeps on increasing.

-sangram kesari das

On Thu, 18 May, 2023, 6:02 pm ...
  Topic: Response spectrum analysis

Replies: 6
Views: 4495

PostForum: SEFI General Discussion   Posted: Tue Apr 17, 2012 12:32 pm   Subject: Response spectrum analysis
Dear Akil,

It's Okey.
In how many modes the mass participation shall be 90% varies depending on mass and stiffness.

Even a same 5 story builing with diffrent lumped mass and stiffness can g ...
  Topic: Tank foundation

Replies: 19
Views: 11294

PostForum: SEFI General Discussion   Posted: Sat Apr 23, 2011 10:13 am   Subject: Tank foundation
Dear GRK,
We can put a ring wall with infill sand on stone column foundation and anchors can be embedded inside the ringwall.

On Fri, Apr 22, 2011 at 4:28 AM, Radha krishna < ...
  Topic: Seismic load on Slabs

Replies: 4
Views: 3494

PostForum: SEFI General Discussion   Posted: Thu May 20, 2010 3:59 am   Subject: Seismic load on Slabs
Dear IITG27,
First of all we need to visualise which masses shall be vibrating in vertical motion of earthquake.
The mass shall be a combination of dead load + some portion of live load.
Live load ...
  Topic: Dr.Subramanian's contribution

Replies: 3
Views: 3101

PostForum: SEFI General Discussion   Posted: Wed Oct 22, 2008 2:26 am   Subject: Dr.Subramanian's contribution
Dear all,

First of all, I appriciate , and infact respect the contribution of Dr. Subramanium and others to us here. Irrespective of his busy scedule he has given his valuable time and advice to us ...
  Topic: Time period of rc frame buildings

Replies: 22
Views: 18257

PostForum: SEFI General Discussion   Posted: Wed Aug 20, 2008 3:54 pm   Subject: Time period of rc frame buildings
Why you are calculating the time period manually bu hand has the answer.
You are going to calculate the lower limit of seismic force/base shear

For which structure you are going to calculate. If i ...
  Topic: Wind force

Replies: 3
Views: 3659

PostForum: SEFI General Discussion   Posted: Sat Aug 09, 2008 7:37 pm   Subject: Wind force
Thank you Dr. Subramanian for your information,

I have already gone through the commentary document prpared by IITK Rurkee Prfs and source was NICEE IITK, I have also gone through the amrican stana ...
  Topic: Wind force

Replies: 3
Views: 3659

PostForum: SEFI General Discussion   Posted: Sat Aug 09, 2008 8:37 am   Subject: Wind force
Dear all,

The IS code 875 part 3 :1987 is not well developed for dynamic behaviour of structure. Even this is specified in scope of code, though it mentions that it has just addressed the dynamic b ...
  Topic: Seismic force for vessel supporting structure

Replies: 7
Views: 6254

PostForum: SEFI General Discussion   Posted: Thu Aug 07, 2008 9:56 pm   Subject: Seismic force for vessel supporting structure
Dear Mr. Yogesh,

What ever the structure may be while designing for seismic force you can not ignore the weight of vessle that participate in seismic behaviour in response spectrum method.

First ...
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