Can someone point me to a method to calculate leg base plates with only two anchor bolts located within the flanges of the I-beam leg. See Bednar 2nd edition Figure 5.5. The value I calculate for C/ab is smaller than the value P1(d/2)/(a^2 b/6) so I cannot apply his method. He notes that in most...
No, why have you?
Someone smarter than I pointed out that my proposed method is invalid because the tubes do not act in unison to resist the shear flow due to the bending moment. So I'm back to square one.
Thanks Mike. Some additional comments.
1. Since I posted that thread I've found the following paper online which gives some suggested values for y and an m=2.0. See attached file.
2. I find the required bolting to seat the packing is 40%+ higher than those given in TEAM Table RCB-5.22.
3. I've...
My contention is that in most cases there is no need for shipping bars on the expansion joint for lifting the unit from the horizontal position because the tubes will take the load (not the expansion joint). Please refer to the attached sample calculations and let me know what you think.
Thanks...
Does anyone know of a method to check the stress in the tubes of a heat exchanger when lifting the unit from horizontal to vertical when there is a thin bellows expansion joint in the shell? I know the tubes will take the load but is there a method to determine the load on the tubes?
Thanks...
Hello
Does anyone have experience with TEMA P-type heads with external packing? I am wondering about:
1. what the initial seating stress should be.
2. how to determine the amount of torque on the bolts when assembling the joint.
3. how much force is generated due to the friction between the...
Hello
I need to work on some old vessels and require the allowable stresses of SA201-A at 100F and 825F and SA201-B at 100F and 500F, Can anyone help?
Thanks in advance
Tomtation
I need to design a 2-pass and a split flow heat exchangers with longitudinal baffles in removeable bundles. Does any one have any details of the seal strips that run along the length of these baffles. Material is carbon steel.
Thanks
Tomtation
Can anyone point me to some good courses on thermal design of heat exchangers? I've taken Heat Transfer I & II in university but would like something more advanced.
I occasionally need to perform FEA for pressure vessel design and have access to Algor MES 2011 and Inventor Routed Systems 2011. I want to know if it would be easier, that is less time to learn and use, Algor to create the models and then run the FEA or create the models in Inventor and then...
There are many instances where the Code doesn't require additional stress calculations, that is why they often limit certain configurations such as the lap to the same thickness as the neck and a minimum radius between the two.
Paragraph UW-2 states "...it shall be the responsibility of the user and/or his designated agent to determine if it is lethal..." There you have it, your customer specifies whether it is lethal service and you must design it accordingly.
You need to check the shear due to the bolt load. The shear area is equal to the circumference at the point of contact of the flange to the stub end multiplied by the thickness of the lap.
Think of the flange as a punch die trying to punch a washer out of the stub end.
Hope this helps.
You need to check the shear due to the bolt load. The shear area is equal to the circumference at the point of contact of the flange to the stub end multiplied by the thickness of the lap.
Think of the flange as a punch die trying to punch a washer out of the stub end.
Hope this helps
