Pad eye design acc to AISC? 1

[urguplu]

Dear Engineers,

In europe we design a pad eye according to the formula of bleich or poocza. This is an very fine tuned method.

How ever our customer in America wants it calculated acc to
AISC 9 th edition ASD or an american regulation.

I can not find a chapter in the AISC 9 th edition ASD, which copes with a pad eye design, where an engineer can calculate, the average stress in the padeye, surface stress from the shaft in the hole, the eye stress and the shear stress in teh pad eye.

The question is, can anybody help me which rules i have the use to design this pad eye.

It may als be calculated according to API 4F.

So far thanks,

ir Ilhan Ozturk
The Netherlands

 

[dooron]

AISC has some excellent papers on design of Padeyes.
The code has rules within it ,edge distance, thickness, clearance that are relevant for padeye and pin connections. Look under pin connections. etc

 

[EIS]

can you point me in the direction of some papers on bleich or poocza, I have recently started looking at padeye design and these would be quite usefull

 

[johnmcsher]

Hi Ilhan,

I am currently looking at formalising padeye design for my company & would be very interested in having a look at the Bleich and poocza methods. I have had very good results when I apply curved beam theory.

John McSherry BEng CEng MIMechE

 

[DRC1]

AISC quaterly journal published a paper several years ago on the design of lifting beams. Also covered pad eyes.I believe it was by David Pason. Excellent paper. They could probably pull it and send you a copy.

 

[boo1]

In the US the following may help guide guide you:
ASME B30.20a-2001 Structual and Mechanical Lifting devices. Section 20-1.2.2 Construction
CMAA crane requirements
AASHO 1.6.17
Steel Construction Manual-AISC
Occupational Safety and Health Administration (OSHA) 29 CFR standard 1926.753(e)(2) and 1926.251
American Society of Testing and Materials Specifications A391
Naval Facility Command NAVFAC-307
American National Standards Institute, "Below The Hook Lifting Devices"