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DPT Test Sampling

 
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raveeleo
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Joined: 22 Dec 2008
Posts: 151
Location: Bangalore
PostPosted: Tue May 13, 2025 7:48 am    Post subject: DPT Test Sampling Reply with quote
Dear Comrades,



I'm seeking expert advice on the required number of joints/points for Dye Penetrant Testing (DPT) for a pergola structure with the following specifications:

- 2 levels, each 3.2m high
- Simple design with 200x200 columns, 96x48 secondary beams, and 200x300 primary beams
- Maximum span: 5.0m
- Over 3000 joints with 600mm weld length

The structural engineer has requested DPT for 50% of the joints, which I believe is excessive considering the non-structural nature of the members. I propose 3-5% of critical joints which includes base plate connection and some Column Beam Joints,  would be more reasonable.

I'd appreciate expert arguments to support or refute this proposal.
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Anand_Kher
SEFI Member
SEFI Member


Joined: 26 Oct 2010
Posts: 12
PostPosted: Tue May 13, 2025 8:30 am    Post subject: DPT Test Sampling Reply with quote
This is a ludicrous requirement arising out of copy paste culture and should be discussed for a sensible way forward.
On Tue, May 13, 2025, 1:23 PM raveeleo <forum@sefindia.org (forum@sefindia.org)> wrote:

Quote:
           Dear Comrades,



I'm seeking expert advice on the required number of joints/points for Dye Penetrant Testing (DPT) for a pergola structure with the following specifications:

- 2 levels, each 3.2m high
- Simple design with 200x200 columns, 96x48 secondary beams, and 200x300 primary beams
- Maximum span: 5.0m
- Over 3000 joints with 600mm weld length

The structural engineer has requested DPT for 50% of the joints, which I believe is excessive considering the non-structural nature of the members. I propose 3-5% of critical joints which includes base plate connection and some Column Beam Joints, would be more reasonable.

I'd appreciate expert arguments to support or refute this proposal.
     



     


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