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Author Message
  Topic: Design of Footing for EQ resistant structures
Yogesh.Pisal

Replies: 18
Views: 8046

PostForum: SEFI General Discussion   Posted: Wed Oct 04, 2017 2:55 am   Subject: Design of Footing for EQ resistant structures
Dear Hemal,

I agree with the fact that SSI will not affect the response of buildings founded on rock or rock like material.

But, as there is scope for difference in opinion in codal provisions ...
  Topic: Design of Footing for EQ resistant structures
Yogesh.Pisal

Replies: 18
Views: 8046

PostForum: SEFI General Discussion   Posted: Tue Oct 03, 2017 3:45 am   Subject: Design of Footing for EQ resistant structures
Dear Er Vijayarathnam,

Cl 6.1.4, IS1893 Part 1 : 2016
Soil structure interaction may not be considered in seismic analysis of structures supported on rock or rock like material at shallow depth. ...
  Topic: Stiffness modifiers in IS 1893-2016-1 and draft tall building code.
Yogesh.Pisal

Replies: 5
Views: 4166

PostForum: SEFI General Discussion   Posted: Sun Oct 01, 2017 8:34 am   Subject: Stiffness modifiers in IS 1893-2016-1 and draft tall building code.
Dear Sir,

I think IS1893 Part 1 has missed the provisions of separate stiffness modifiers for SLS.

If we compare these provisions with ACI318-11 (ACI318-14 is having major changes about the pro ...
  Topic: STAAD.Pro steel modelling
Yogesh.Pisal

Replies: 4
Views: 2783

PostForum: SEFI General Discussion   Posted: Wed Sep 27, 2017 4:01 am   Subject: STAAD.Pro steel modelling
Dear Sasindran,

Following 2 points to be considered carefully while modeling steel elements in STAAD

1. Orientation of members shall be correct: This use to be problem generally for angle member ...
  Topic: Design of Footing for EQ resistant structures
Yogesh.Pisal

Replies: 18
Views: 8046

PostForum: SEFI General Discussion   Posted: Wed Sep 27, 2017 3:50 am   Subject: Design of Footing for EQ resistant structures
Dear Er Vijayarathnam,

I prefer following philosophy for the considering foundation stiffness.

1. Analysis 1: Assign fixed support irrespective of tie / Grade beams.

2. Work out foundation ...
  Topic: explanatory on IS 1893- Part 4(Industrial Structurs)
Yogesh.Pisal

Replies: 3
Views: 3358

PostForum: SEFI General Discussion   Posted: Wed Aug 16, 2017 1:25 pm   Subject: explanatory on IS 1893- Part 4(Industrial Structurs)
Amol,

We need to interpolate for the intermediate values of damping.

BIS has issued IS1893 Part 1 : 2016 recently and suggested to consider 5% damped response spectrum irrespective of MOC. I pre ...
  Topic: Clause in IS:1893 draft
Yogesh.Pisal

Replies: 23
Views: 16233

PostForum: SEFI General Discussion   Posted: Tue Mar 22, 2016 8:16 am   Subject: Clause in IS:1893 draft
Dear All,

Refer the Cl c-3, page no 44 in the following book.

http://www.iitk.ac.in/nicee/IITK-GSDMA/EBB_001_30May2013.pdf

This will focus on the requirement of 15% separation of time period ...
  Topic: HOW TO CALCULATE TIME PERIOD IF BUILDING HAS VARIABLE HEIGHT
Yogesh.Pisal

Replies: 8
Views: 3956

PostForum: SEFI General Discussion   Posted: Thu Feb 11, 2016 4:41 am   Subject: HOW TO CALCULATE TIME PERIOD IF BUILDING HAS VARIABLE HEIGHT
Dear Arunkumar,

It wont be possible for me to share project calculation. But, you can refer to the following procedure.

Consider the building with following configuration
a. Height of the build ...
  Topic: HOW TO CALCULATE TIME PERIOD IF BUILDING HAS VARIABLE HEIGHT
Yogesh.Pisal

Replies: 8
Views: 3956

PostForum: SEFI General Discussion   Posted: Wed Feb 10, 2016 5:10 am   Subject: HOW TO CALCULATE TIME PERIOD IF BUILDING HAS VARIABLE HEIGHT
Dear Er Aayush,

Modeling of brick infill in STAADpro / ETABS is not necessary.

Building without brick infill, T = 0.075 h ^ 0.75

Building with brick infill, T = 0.09 h / sqrt (d)

Second ...
  Topic: HOW TO CALCULATE TIME PERIOD IF BUILDING HAS VARIABLE HEIGHT
Yogesh.Pisal

Replies: 8
Views: 3956

PostForum: SEFI General Discussion   Posted: Wed Feb 10, 2016 4:24 am   Subject: HOW TO CALCULATE TIME PERIOD IF BUILDING HAS VARIABLE HEIGHT
Dear Er Aayush,

Formulas proposed in the IS1893 Part 1 are empirical formulas. Hence, we can not make such modifications to such formulations.

Any proposed modifications shall either be support ...
 
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