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Author Message
  Topic: Davit jib design
es_jayakumar

Replies: 1
Views: 235

PostForum: SEFI General Discussion   Posted: Wed Jan 15, 2020 11:56 am   Subject: Davit jib design
You have first to locate the centre of gravity of the system based on weight, by taking moments about any point and then find L[SUB]b[/SUB]. I hope I understood your query right.

E S Jayakumar
  Topic: Staircase waist slab self weight calculation
es_jayakumar

Replies: 2
Views: 466

PostForum: SEFI General Discussion   Posted: Thu Jan 09, 2020 10:30 am   Subject: Staircase waist slab self weight calculation
Sqrt(R^2+T^2)/T is nothing but 1/Cosθ, (θ being the inclination of the waist slab to the horizontal) which is multiplied to convert the dead load of the waist slab per unit area along the in ...
  Topic: How to avoid Expansion joints in a high rise rcc building(150×150×103m) with geometrical irregularity in plan?
es_jayakumar

Replies: 8
Views: 1128

PostForum: SEFI General Discussion   Posted: Thu Jan 09, 2020 5:52 am   Subject: How to avoid Expansion joints in a high rise rcc building(150×150×103m) with geometrical irregularity in plan?
Er. Bindu Sunil,
Dr.N.Subramanian sir has clarified to my query, in our Whatsapp group “Proud Civil Engineers”, that we can assume the structures to be continuous across the shrinkage strip for analy ...
  Topic: FLAG POST
es_jayakumar

Replies: 8
Views: 1146

PostForum: SEFI General Discussion   Posted: Sat Jan 04, 2020 1:26 am   Subject: FLAG POST
Dear NS Sir,
Thanks for your guidance. The major vertical load on the pole is its own self weight and the eccentricity due to this will be practically nil. However, when it deflects laterally under w ...
  Topic: How to avoid Expansion joints in a high rise rcc building(150×150×103m) with geometrical irregularity in plan?
es_jayakumar

Replies: 8
Views: 1128

PostForum: SEFI General Discussion   Posted: Thu Jan 02, 2020 10:07 am   Subject: How to avoid Expansion joints in a high rise rcc building(150×150×103m) with geometrical irregularity in plan?
I have once read somewhere an article that tells if the temperature difference is not substantial, expansion joints can be dispensed with, for concrete bridges or so. I am not sure, if the same can be ...
  Topic: How to avoid Expansion joints in a high rise rcc building(150×150×103m) with geometrical irregularity in plan?
es_jayakumar

Replies: 8
Views: 1128

PostForum: SEFI General Discussion   Posted: Thu Jan 02, 2020 7:36 am   Subject: How to avoid Expansion joints in a high rise rcc building(150×150×103m) with geometrical irregularity in plan?
In my opinion, it will be safe for you to go by the recommendations of the Coded IS 3414 : 1968 & IS 4326 : 2013, which advocates the provision of expansion joints in various circumstances. Which ...
  Topic: FLAG POST
es_jayakumar

Replies: 8
Views: 1146

PostForum: SEFI General Discussion   Posted: Wed Jan 01, 2020 2:25 am   Subject: FLAG POST
Dear Er.Hussein,
Please see the attached Article by Dr.N.Subramanian on the design of flag poles. As per this, the wind load on the flag is also to be considered in the design. An empirical formula f ...
  Topic: Do we need to provide development length LD for top reinforcement of Slab at discontinuous edge?
es_jayakumar

Replies: 9
Views: 1197

PostForum: SEFI General Discussion   Posted: Tue Dec 31, 2019 9:17 am   Subject: Do we need to provide development length LD for top reinforcement of Slab at discontinuous edge?
Sir,
Are not the referred clauses pertaining to the case of continuance of the tension bars at a support beyond the point of inflection towards the span ? Please correct me if I am wrong.

Regards, ...
  Topic: Do we need to provide development length LD for top reinforcement of Slab at discontinuous edge?
es_jayakumar

Replies: 9
Views: 1197

PostForum: SEFI General Discussion   Posted: Tue Dec 31, 2019 5:07 am   Subject: Do we need to provide development length LD for top reinforcement of Slab at discontinuous edge?
Dear ES Jayakumar sir,

Thank you for your reply and clarifying my doubt. I could not find the reason for the same in any text book or literature and I am very much convinced with your explanation. ...
  Topic: Do we need to provide development length LD for top reinforcement of Slab at discontinuous edge?
es_jayakumar

Replies: 9
Views: 1197

PostForum: SEFI General Discussion   Posted: Sun Dec 29, 2019 4:43 pm   Subject: Do we need to provide development length LD for top reinforcement of Slab at discontinuous edge?
Dear Er.Ramakanth,
Your "small" doubt is quite genuine !
My observation on your query is like this :
At discontinuous edges of slabs, especially those supported on beams, some negative mo ...
 
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