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  Topic: An open letter to ICJ

Replies: 13
Views: 5432

PostForum: SEFI General Discussion   Posted: Thu Aug 22, 2019 4:48 am   Subject: An open letter to ICJ
Dear fellow SEFI'ans,

Some body please forward these to:
The Indian Concrete Journal (icj@acclimited.com)

Rahul Leslie
  Topic: How to apply Vertical earthquake load in etabs

Replies: 6
Views: 5083

PostForum: SEFI General Discussion   Posted: Fri Jun 28, 2019 5:16 am   Subject: How to apply Vertical earthquake load in etabs
Find Av (6.4.6, IS:1893-2016) from

Av = (2/3)*(Z*I)/(2*R)*(2.5)

and define vertical earthquake EQv

EQv = Av*(DL+reduced.LL)

... use this EQv in place of 'ELz' in the combinations described ...
  Topic: Difference between Shear Hinge and Flexural Plastic Hinge

Replies: 5
Views: 3361

PostForum: SEFI General Discussion   Posted: Sat Jun 22, 2019 4:34 pm   Subject: Difference between Shear Hinge and Flexural Plastic Hinge
Decision to insert which type of hinges in beams is not depended on the structural failure pattern but on the moment and shear capacities of the section. And that depends not only on the section dime ...
  Topic: Seismic / Earthquake Load Combinations for structures/Buildings

Replies: 15
Views: 6256

PostForum: SEFI General Discussion   Posted: Tue Jun 11, 2019 7:45 am   Subject: Seismic / Earthquake Load Combinations for structures/Buildings
For your second question, you have to consider both static and dynamic cases and take out the critical out of that for individual members.

There are criteria in IS:1893 for deciding on which meth ...
  Topic: C++ programming

Replies: 6
Views: 2694

PostForum: SEFI General Discussion   Posted: Tue Jun 04, 2019 10:16 am   Subject: C++ programming
Earlier, all Finite Element programs were written in FORTRAN -- for example, STAAD-III was originally written in Lahey Fortran.

ANSYS people once told me that they would have written it in C++, if ...

Replies: 4
Views: 2004

PostForum: Academic Project Guidance for B.Tech (B.E)/M.Tech (M.E)    Posted: Sat Feb 23, 2019 10:12 am   Subject: PROGRESSIVE COLLAPSE
Max. displ is expected to be at the point where the column support is removed, i suppose. But i wonder why you want to remove columns of 4th and roof.

Anyway, you need to insert non-linear hinges i ...
  Topic: ANSYS

Replies: 2
Views: 1340

PostForum: SEFI General Discussion   Posted: Tue Jan 22, 2019 4:40 am   Subject: ANSYS
you don't model cracks... you only set parameters for smeared cracks.

Replies: 11
Views: 4957

PostForum: SEFI General Discussion   Posted: Tue Oct 09, 2018 7:04 am   Subject: HANDBOOK OF TURBOGENERATOR FOUNDATION
Try with Notion Press publishers:


Rahul Leslie
  Topic: Information required in IS1893 part 2016

Replies: 21
Views: 7511

PostForum: SEFI General Discussion   Posted: Sat Aug 04, 2018 5:00 pm   Subject: Information required in IS1893 part 2016
1. Reduced MI will not be used for calculating fundamental natural frequencies of the structure. Seismic loads are calculated using the above structure frequencies only

Is that so? I can't find tha ...
  Topic: Eurocode

Replies: 3
Views: 2698

PostForum: SEFI General Discussion   Posted: Thu Mar 08, 2018 11:48 am   Subject: Eurocode
I wounder how the 0.3*Q was arrived at in the seismic case. I presume the 0.3, was probably the live load reduction, as with IS:1893-2000 (where the reduction was allowed for design load cases too).
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