Pressure Vessel Design Manual is a solutions-focused guide to the many problems and technical challenges involved in the design of pressure vessels to match stringent standards and codes. It brings together otherwise scattered information and explanations into one easy-to-use resource to minimize research and take readers from problem to. An important concept of vessel design is yield stress. If stresses higher than the yield stress (which is temperature dependent) of a given material are applied than elastic or eventually plastic deformation may occur. As per Pressure Vessel Code ASME Section 8 Div. Design stress of a pressure vessel = lowest of: Ultimate tensile stress / 3.5.
PV ELITE ANCHOR BOLT DESIGN FOR VERTICAL VESSEL
PV ELITE ANCHOR BOLT DESIGN FOR VERTICAL VESSEL
Question:
Attached is a clip (apologies for the quality) from a PV Elite calculation for a vertical skirt supported vessel anchor bolt design which I have been checking. All units are in N (Newtons) and mm.
The formula for the anchor bolt load per bolt is: = (4*M/DC - W) / RN
Where:
M = moment at base Nmm
DC = Anchor Bolt Circle Diameter
W = Vessel weight
RN = number of anchor bolts
In the PV Elite calculation the vessel weight is shown as 49616.1N, yet in the anchor bolt calculation the weight is shown as 12404N
e.g. the weight has been divided by a factor of 4 in the calculation.
Why is this as this is not correct in my opinion – or am I missing something........??
Attached is a clip (apologies for the quality) from a PV Elite calculation for a vertical skirt supported vessel anchor bolt design which I have been checking. All units are in N (Newtons) and mm.
The formula for the anchor bolt load per bolt is: = (4*M/DC - W) / RN
Where:
M = moment at base Nmm
DC = Anchor Bolt Circle Diameter
W = Vessel weight
RN = number of anchor bolts
In the PV Elite calculation the vessel weight is shown as 49616.1N, yet in the anchor bolt calculation the weight is shown as 12404N
e.g. the weight has been divided by a factor of 4 in the calculation.
Why is this as this is not correct in my opinion – or am I missing something........??