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Author Message
  Topic: Mettur Tamilnadu-Seismic zone
rajancivildesign@gmail.co

Replies: 4
Views: 1120

PostForum: SEFI General Discussion   Posted: Wed Jun 24, 2020 2:34 pm   Subject: Mettur Dam in Seismic zone III
Sir,
Previously Salem was in seismic zone II. Now as per IS1893 part 1-2016 it comes under seismic zone III. Since Mettur Dam is part of Salem district it is under zone III only. in TNEB, in all o ...
  Topic: Structural Design using Excell Spread sheet
rajancivildesign@gmail.co

Replies: 72
Views: 130642

PostForum: SEFI General Discussion   Posted: Thu Apr 16, 2020 11:25 am   Subject: Excell sheet for wind for open and closed structure
i herewith attached wind calculation for closed and open structure as per IS875 part3 for reference.
V.M.RAJAN
  Topic: Why this beam rebar is cranked like this?
rajancivildesign@gmail.co

Replies: 7
Views: 1748

PostForum: SEFI General Discussion   Posted: Thu Apr 09, 2020 4:49 pm   Subject: Beam rebar cranked
In beam design the shear has to be resisted by concrete and steel. After taking shear by concrete balance shear has to resisted by stirrups. To take some portion of shear say 50% of balance shear r ...
  Topic: How to decide the Size of Column before calculating the load
rajancivildesign@gmail.co

Replies: 2
Views: 958

PostForum: SEFI General Discussion   Posted: Thu Apr 09, 2020 3:07 pm   Subject: Size of rcc column for a building
I herewith attached the details of choosing rcc size of column for a building for reference.
V. M. Rajan.
  Topic: Circular column Vs Square column
rajancivildesign@gmail.co

Replies: 14
Views: 2853

PostForum: Speak Out Box   Posted: Thu Apr 09, 2020 3:21 am   Subject: Circular column in bridge design
For bridge design across river course, circular column is provided to divert waterway suitably in the upstream and downstream. For bridges in city like metro you can see only square column. Circular c ...
  Topic: Circular column Vs Square column
rajancivildesign@gmail.co

Replies: 14
Views: 2853

PostForum: Speak Out Box   Posted: Sat Apr 04, 2020 2:22 pm   Subject: circular column design excell sheet
I herewith attached one excell sheet for circular column for M20 mix and steel grade Fy415 for reference. We can generalised the design sheet for any grade of concrete and any grade of steel by progr ...
  Topic: Circular column Vs Square column
rajancivildesign@gmail.co

Replies: 14
Views: 2853

PostForum: Speak Out Box   Posted: Tue Mar 31, 2020 4:19 am   Subject: Comparison of moment of inertia
The area of square and circular are almost equal but moment of inertia for square column is 1/12 b^4 where as circular column is π/64 xb^4. You can compare which section have more moment of iner ...
  Topic: Circular column Vs Square column
rajancivildesign@gmail.co

Replies: 14
Views: 2853

PostForum: Speak Out Box   Posted: Mon Mar 30, 2020 4:29 pm   Subject: Design of circular column
The circular column have less buckling than square column because the centroid is symmetry about all the axis. More over by design itself circular requires minimum 6 bars whereas square column requir ...
  Topic: Truss models of various types using Staad pro
rajancivildesign@gmail.co

Replies: 0
Views: 935

PostForum: SEFI General Discussion   Posted: Tue Mar 17, 2020 5:30 pm   Subject: Truss models of various types using Staad pro
I herewith attached the various types of truss using staad pro for reference. V. M. Rajan


- Forwarded message
From: Rajan v.m. <rajancivildesign@gmail.com ([email]rajancivildesign@gmail.com[ ...
  Topic: Proposed REVISION OF IS:456-2000- Inviting Comments
rajancivildesign@gmail.co

Replies: 161
Views: 109418

PostForum: SEFI General Discussion   Posted: Tue Mar 17, 2020 2:57 pm   Subject: Toilet slab without beam support
Design of toilet slab without folding beam at intermediate support is attached for reference.
V.M.RAJAN
 
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