Shear and moment in a Skirt supported vessel

[thiru777]

Both wind and seismic moments are they the exact product of respective shear and COG?, i try to find that in most of the cases there is huge variation between (SHEAR X COG) and actual value obtained in the calculation. Kindly clarify me

 

[racookpe1978]

Why would you expect the wind load to act at the center of gravity on most tanks and tall towers?

They do. Sometimes.

 

[thiru777]

then what is the exact philosophy followed in calculating moment due to wind and seismic?, In the sense what are the parameters involved in calculating the Moments

 

[thiru777]

what is the exact philosophy followed in calculating moment due to wind and seismic at base?, In the sense what are the parameters involved in calculating the base Moments?

 

[MJCronin]

As you would expect, there is a very long and complex answer to these broad questions.....

Consider putting some of your own money into your profession by purchasing texts that discuss this complex analysis:

Here is one:

http://www.amazon.com/Pressure-Vessel-Design-Handbook-Bednar/dp/089464503X

MJCronin
Sr. Process Engineer