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Strengthening of Concrete structure after construction
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logeshcivil
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Joined: 07 Aug 2017
Posts: 32

PostPosted: Fri May 27, 2022 6:34 am    Post subject: Reply with quote

Dear vikram
Thank you for your prompt repose.Your replies are of immense help to me.

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Er. S.Logesh
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Dr. N. Subramanian
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Joined: 21 Feb 2008
Posts: 5499
Location: Gaithersburg, MD, U.S.A.

PostPosted: Tue May 31, 2022 4:28 pm    Post subject: Reply with quote

vikram.jeet wrote:
Anchors need to be designed for horizontal shear force . For design philosophy you can refer IRC code on composite bridge decks. You can also see Dr VK Raina book on Bridge Designs /any book on composite designs.
Normally I do not check the files for which seek pardon.


Dear Er Vikramjeet,
  
I have included the design of Anchors in my book on Design of RC Structures, Oxford University Press !

Warm regards
Subramanian
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vikram.jeet
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Joined: 26 Jan 2003
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PostPosted: Wed Jun 01, 2022 2:51 am    Post subject: Reply with quote

Dr. N. Subramanian wrote:
vikram.jeet wrote:
Anchors need to be designed for horizontal shear force . For design philosophy you can refer IRC code on composite bridge decks. You can also see Dr VK Raina book on Bridge Designs /any book on composite designs.
Normally I do not check the files for which seek pardon.


Dear Er Vikramjeet,
  
I have included the design of Anchors in my book on Design of RC Structures, Oxford University Press !

Warm regards
Subramanian




Er Logesh ,
As enlightened by respected Dr  NS Sir  , you can refer book on rcc Designs authored by him for design of Anchors in composite construction works. This book is latest on rcc design theory and practice.
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logeshcivil
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Joined: 07 Aug 2017
Posts: 32

PostPosted: Thu Jun 02, 2022 4:35 am    Post subject: STRENGTHENING OF BEAMS Reply with quote

Dear sirs

Thank you very much for valuable suggestion
Dr. N. Subramanian
sir.I will look into it.

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Er. S.Logesh
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spsvasan
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Joined: 18 Dec 2008
Posts: 357

PostPosted: Sun Jun 05, 2022 5:10 am    Post subject: Re: STRENGTHENING OF BEAMS Reply with quote

logeshcivil wrote:
Dear sefians
I have attached some files for your reference.Help me with this.In this structure they have provided 9" x 2' beam (M20) beam for 60' span. I think that it will cause excessive deflection. So i am planning on providing rectangular section or I section as column for additional support. When trying to design anchor bolt , it fails in cone failure.Some suggested that I should try designing the anchor bolt with pinned connection. How do i do that.
Do i release the moments in the column in the STAAD model or how should i go about it.

Or
Any other suggestions for the strengthening of the beams.



Dear Er.Logesh and other SEFIans

I hope this is not an actual structure under construction.

I request SEFIans to look into the beam layout and details attached by Er.Logesh in his first posting and comment on the same

From the geometry of the layout it looks as if B10 and B12 will behave as main beams and B7 will behave as a secondary beam. The detailing of B10 and B12 does not reflect this behaviour. Also, the detailing of the cantilevers seems to be poor

S.P.Srinivasan
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