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  • Users: johg
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  1. johg

    Trailer roll over

    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...
  2. johg

    Hybrid bolted connection pre-loaded and injection bolts

    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...
  3. johg

    Support saddle

    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...
  4. johg

    Hoisting speed slow and fast

    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...
  5. johg

    Calculating stress and force when forcing a tubular round

    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...
  6. johg

    Lashing and securing cargo on marine vesssel

    Does any one have any documentation or calculation references for lashing and securing cargo on a MV / Coaster
  7. johg

    Steel construction problem, overhead crane rail

    We have some problems with the bolted connection in our steel construction. Due to the overhead cranes the construction is not static. Due to that fact there are some issues. I would like to discuss these problems and even the correction on these issues. It is a real challenge to find the right...
  8. johg

    Prevent from rolling

    I am a Mech Engin. and new on this geotech problems. We are trying to calculate the dimensions of a gravelbed. On this gravelbed we are stacking tubulars diameter 5200 mm length ca. 54000 mm weight approx. 450000kg. in two rows. We do not want the tubulars to start rolling. Technically we have...

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