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  1. StathPol12

    Design/assessment anchor studs to BS5950

    Hi guys, I am looking to find a guide to carry out a structural assessment anchor studs to BS5950. Two anchor bolts diameter of 24 mm are bolted to a 40 mm thick steel plate dimensions of 200 mm x 200 mm. is there any guide to do that? Thanks.
  2. StathPol12

    How to get the size of bolts to mount a steel section to the concrete wall?

    Thanks for your replies guys. I thought i would post a question and get some feedback or guidance as I was trying to take into consideration all the comments while I was trying to do some calculations of the forces acting on the bolts, but as 1503-44 stated, it felt a bit as interrogation by a...
  3. StathPol12

    How to get the size of bolts to mount a steel section to the concrete wall?

    I aim to mount a rectangular, long, steel section to the wall, using 3 steel plates. The 3 steel (arm) plates will be welded to the steel section to the one side, and then use bolts to mount them to the concrete (rigid) wall. What size of bolts shall I use?
  4. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side (middle)?

    I took the XY plane put the total load of 65.5 kN (sum of pipe and door) on the shifted center of gravity point as shown above. Then, I solved it as a simply supported beam. If this is correct, then 16.0715 kN on the each of the two chains located to the side of the pipe without the door...
  5. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side (middle)?

    rb1957 The chains will be positioned vertically, I did a small error on the previous drawing - just spent some time to correct it and here how it looks. I also did a small error in the weight of the pipe and corrected it. We have the following: We know that: - Weight (self-weight) of the pipe...
  6. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side (middle)?

    We could if we didn't have the extra weight...How do I put the shift of the CoG to the equation? If this is going to be lifted by 4 chains, then it would be the total weight divided by 4..but how do we consider the shift of CoG 0.023 m to the right?
  7. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side (middle)?

    How do we work out the load distribution if the steel pipe (with the door) is lifted by 4 chains (i.e. the point loads acting on the beam)? Assume that there are 4 lifting attachment points on the steel pipe where they will be used to mount the chains. We know that the combined self-weight of...
  8. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side (middle)?

    Thanks guys, I have taken all the comments and created a word file with the details of the pipe and the centre of gravity for the x and y coordinates. Still trying to work out the centre of gravity for z direction . Can you please have a look if you have a few minutes free time and let me know...
  9. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side (middle)?

    Thanks for the feedback. Just posting Luceid's diagrams but with axis x(horizontal), y (vertical), z (depth). Just still working to find the COG for each (x,y,z coordinate). Self weight of pipe (SFpipe) = 6766 kg Self weight of door (SFdoor)= 120 kg "Y" coordinate of the center of gravity...
  10. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side (middle)?

    So, the centre of gravity in the x direction is SFpipe = 6766 kg SFdoor = 120 kg Centre of gravity at x direction: ((6766 x 1.24) + (120 x 2.48)) / (6766 + 120) = 1.26 metres (From Point A). Is this correct?
  11. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side (middle)?

    Hi guys, I have a steel pipe with the dimensions shown below: Length of the pipe = 6.4 metres. External diameter = 2.48 metres. Internal diameter = 2.46 metres. Self-weight of the steel pipe = 6766.85 kg (uniform steel pipe). A steel door of 120 kg is bolted to the right side of the steel...
  12. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side?

    Thanks for the reply. If it was a 2D beam, I can do it. But here, we have a 3D steel pipe with a door weight of 120 kg to the side in the middle and it confuses me. Shall I treat it like a 2D and solve it with reference A the start point of the pipe? And I need to get it ready by tmr:( ..I am...
  13. StathPol12

    How to calculate the center of gravity of a steel pipe with a weight to the side?

    Hi guys, I have a steel pipe with the dimensions shown below: Length of the pipe = 6.4 metres. External diameter = 2.48 metres. Internal diameter = 2.46 metres. Self-weight of the steel pipe = 6766.85 kg (uniform steel pipe). A steel door of 120 kg is bolted to the right side of the steel...
  14. StathPol12

    Application of Pre-load force on a dynamic explicit step - Drop Test

    Hi guys, I am performing a dynamic explicit analysis of a drop impact event on a beam specimen. Is there any way that I can apply a pre-load force on the frame before the object drops on the beam? Regards and thank you.
  15. StathPol12

    Rotation shaft using solid elements does not rotate - Dynamic Explicit

    Hi, I am trying to model a rotation shaft using solid elements. I have pinned the nodal points on the center line along the x-axis to allow rotation in the x-direction as shown below in 3D space. However, the rotation shaft does not seem to move when the analysis starts. The analysis is...
  16. StathPol12

    Dropped Test Simulation of a falling object including gravity

    Thanks for your reply Mustaine3. Well, I had a small issue which I sorted out with the steps..Is there any way that we can create a separate short step to give the velocity and then the next step to suppress it? I will finish what I am doing and then attach the file...
  17. StathPol12

    Dropped Test Simulation of a falling object including gravity

    Hi Mustraine3, Thank you for your quick reply. As aforementioned, the calculated velocity is 4.43 m/s and was defined on the reference point as load x gravity during the second step. I also have defined a point mass to account for the inertial. In the step module, I defined the following...
  18. StathPol12

    Dropped Test Simulation of a falling object including gravity

    Hello Mustaine3, I have attached an image for your convenience. I would like to simulate the gravity on the projectile so I guess this needs to be in a different step. The steps I followed are as follows: I have applied an isotropic point mass thought the interaction step on the reference...
  19. StathPol12

    Dropped Test Simulation of a falling object including gravity

    Dear all, I would like to ask if anyone can help me with an issue that I came in contact with. I am trying to model an impact event of a dropped test and I would like to model the gravity as well. The simulation consists of an analytical rigid surface for the projectile including a reference...

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