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  Topic: Unethical Structural Practice
abhio

Replies: 14
Views: 2612

PostForum: SEFI General Discussion   Posted: Mon Jan 18, 2021 7:34 am   Subject: Unethical Structural Practice
Dear Er Reza,

Unfortunately, in India we do not have a system for flagging structural issues. You are absolutely right in noting that improper design exposes hundreds of occupants of buildings to r ...
  Topic: Approximate Equation for Curvillinear portion of Stress-strain Curve of HYSD Rebars
abhio

Replies: 9
Views: 3446

PostForum: SEFI General Discussion   Posted: Sat Nov 28, 2020 5:36 pm   Subject: Approximate Equation for Curvillinear portion of Stress-strain Curve of HYSD Rebars
Dear Er Aditya,

The fitting equation will obviously be imperfect, but the error is well within 1%, which ought to be acceptable.

Meanwhile, you could try this equation, which seems to fit even b ...
  Topic: Approximate Equation for Curvillinear portion of Stress-strain Curve of HYSD Rebars
abhio

Replies: 9
Views: 3446

PostForum: SEFI General Discussion   Posted: Sat Nov 28, 2020 2:55 pm   Subject: Approximate Equation for Curvillinear portion of Stress-strain Curve of HYSD Rebars
Dear Er Aditya,

I'm not sure I understand your question.

1. The equations fitted are obviously only intended to be used up to yield, beyond which a straight line at 0.87 fy is to be used.
2. ...
  Topic: Approximate Equation for Curvillinear portion of Stress-strain Curve of HYSD Rebars
abhio

Replies: 9
Views: 3446

PostForum: SEFI General Discussion   Posted: Wed Nov 25, 2020 9:47 am   Subject: Approximate Equation for Curvillinear portion of Stress-strain Curve of HYSD Rebars
This gives a good match for Fe 500

-8150780000000*e^4+99924733122*e^3-465498637.6*e^2+1005216*e-443.477
  Topic: Footing design by Staad foundation Advanced software
abhio

Replies: 1
Views: 1296

PostForum: SEFI General Discussion   Posted: Mon Nov 23, 2020 6:41 am   Subject: Footing design by Staad foundation Advanced software
Dear Er Aatif,

I haven't used STAAD Foundation Advanced, but I suppose this is used to tell the program whether you've modelled the column up to the top of the footing or the bottom.

I had to ch ...
  Topic: self supporting steel pipe carrying bridges
abhio

Replies: 2
Views: 1293

PostForum: SEFI General Discussion   Posted: Wed Nov 18, 2020 12:06 pm   Subject: self supporting steel pipe carrying bridges
Dear Er,

The pipe will be carried on saddles in a truss structure, so that the span of the pipe will be of the order of 3m or so.
  Topic: Accurate formula for upper portion of trapezoidal footing.
abhio

Replies: 8
Views: 1833

PostForum: SEFI General Discussion   Posted: Tue Nov 10, 2020 4:26 am   Subject: Accurate formula for upper portion of trapezoidal footing.
Now it's clear. Thanks for the explanation.
  Topic: Accurate formula for upper portion of trapezoidal footing.
abhio

Replies: 8
Views: 1833

PostForum: SEFI General Discussion   Posted: Mon Nov 09, 2020 9:41 am   Subject: Accurate formula for upper portion of trapezoidal footing.
https://mathalino.com/reviewer/derivation-of-formulas/derivation-of-formula-for-volume-of-a-frustum
  Topic: DEFLECTION CHECK FOR BEAM
abhio

Replies: 4
Views: 2129

PostForum: SEFI General Discussion   Posted: Mon Oct 05, 2020 7:21 am   Subject: DEFLECTION CHECK FOR BEAM
Further to the above, you could go in for a composite structure with steel beams supporting concrete deck. This will allow you to construct the floor without spending time and money on staging.
  Topic: DEFLECTION CHECK FOR BEAM
abhio

Replies: 4
Views: 2129

PostForum: SEFI General Discussion   Posted: Mon Oct 05, 2020 7:17 am   Subject: DEFLECTION CHECK FOR BEAM
Dear Er Nikhil,

I would suggest:

Increase grade of concrete
Increase width of beam
Increase dimensions of column.
 
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