Recent content by johg

Hi, On a trailer a product with a high C of G is being tranported. The product still getting larger and the C of G is also getting higher. Is there an easy way of calculating the stability against rolling over. Driving at low speed (walking speed) Turning corner radius is small and heigh...

Thank you all for the input. Same conclusion as I had. For anyone who has any interest see also publication from Issuu (issuu.com/facom/docs/ti-01-injectbolts-eng) Grtz J

We are preparing calculations for an existing beam to beam connection. The bolted connection does not meet the fatigue requirements. Therefore we are calculating a friction connection with pre-loaded bolts. Calculations are done according Euro code. The Sls state we can meet the requirements...

Hi faizal8009, The tolerances on bevel angles are mentioned in standard only by exception. The API has some tolerances on bevel angles. If you weld the bevels yourselves, you will have some own tolerances (+/- 1°). If bevels are end preparation normally you should ask your client or make a...

Dear all, Thanks already for the input. The number of pipes we have to store is about 30 to 40. The dimension left OD 5200 mm, wall thickn. 60 mm, right side OD 6000 mm, wall thickn. 70 mm. In the middle there is a conical section, which we do not want to support. We need store the pipe about...

Hi, Company policies are made to get structure in the organisation. But details as how a person works, is up to your boss. I think the way you work, works for you and the result is the same. The software programms you work with are only tools. It is all about the result. If your work you...

We need to fabricate a great number of saddles. The saddles are only support saddles for temporary storage, one or two months to store big pipes (approx 6000 mm, wallthickness 60-80 mm). Should I follow the ASME code or is there another procedure I can follow, so we can construct lighter...

Hi you all, I am evaluating the effect of hoisting heavy products starting at low speed and starting at fast speed with overhead cranes. The proper way is to start slow hoisting the product and go to fast. As we know our crane drivers anything needs to go fast and faster. The discussion is...

You might look at MASTAN2. We were looking for a replacement programme to. http://www.mastan2.com/download.html it works for us. Johg

Thanks all for your input. The out of roundness was due to welding longitudinal weld and some stiffeners at the other end of the tubular. We needed to fit up some other tubular and weld the circumferential weld. We calculated the needed pressure and beam to push out the out of roundness. The...

Sorry made a typo, length tubular is 10 mtr long instead off 10".

The tubulars has been made from several smaller tubulars (length 10") welding circumferential weld after welding the longitudinal welds. All welds are full penetration welds. The out of circularity is due to welded internals. We only need to adjust the outer end of the tubular, so we can weld...

We are fabricating some heavy wall tubulars. Diameter up to 5 mtr and wall thickness up to 110 mm. Material grade S460. Due to some welding the tubulars are out of circularity. We cannot calibrate the tubular by rolling. We need to make use of a hydraulic pump to push the tubular round and weld...

Your are correct with problem 2, we suggested the same. The structural engineer is checking the calculations. We thougt that only the bolt in the support are sufficient. I have some doubts, why the bolts have been broken. We are substituting the bolts which have been broken including the once in...

We fabricate our own lifting beams up to 200 tonnes. We fabricate to the European rules. Guidelines to EC. We have a lot of experience welding for offshore structures. Only qualified welders are selected for welding on lifting equipment. Partial welds and fillet welds are only checked visual...