Pressure Vessel Design Handbook by Eugene F Megyesy (most practical book on pv)

[tturit]

I hope, somebody can answer for my problem... so, wind and earthquake design... I have the moment on the bottom tangent line, but above from the bottom tangent line, the wall thickness is thiner like the bottom (this is a liquid storage tank...), and I need to calculate the Moment in this area...how can I do it? my first idea is the following: M(earthquake)+M(wind)=q*x*x/2-->q=M(sum)*2/(x*x)...and I can solution that problem for x=5[m] (example)-->M=q*5*5/2 .... is that correct for earthquake??? (I know, for the wind load is that, but the earthquake?!) (q[N/m] ; x[m] ; M[N*m]) pleas, somebody help me )

[Priyoyo]

Thank you for sharing this book, great book....


Priyoyo

[gpz]

thanks, I have already on my desk since my first day of job, like a Linus' sheet, and now also the electronic format and have it on my pc, great.

[Muhammad Ramzan]

plz share 14 edition of [COLOR="rgb(139, 0, 0)"]Pressure Vessel Design Handbook by Eugene F Megyesy[/COLOR]

if any one have plz send me by email or send me link by email

my email id ahmad.ramzan@gmail.com

thanks in advance

[connect2anand]

Please any one can upload K.P. Singh and A.I. Soler, Mechanical design of heat exchangers and pressure vessel components

[Ali366]

I hope, somebody can answer for my problem... so, wind and earthquake design... I have the moment on the bottom tangent line, but above from the bottom tangent line, the wall thickness is thiner like the bottom (this is a liquid storage tank...), and I need to calculate the Moment in this area...how can I do it? my first idea is the following: M(earthquake)+M(wind)=q*x*x/2-->q=M(sum)*2/(x*x)...and I can solution that problem for x=5[m] (example)-->M=q*5*5/2 .... is that correct for earthquake??? (I know, for the wind load is that, but the earthquake?!) (q[N/m] ; x[m] ; M[N*m]) pleas, somebody help me )

tturit,

I hope this is not too late to reply and helps a bit.

In reply to your above post, I must say:
1- In all of the storage tanks codes, pressure vessel codes and even structural building codes that I have seen, the designer is not required to consider the effect of wind and seismic loads at the same time, since it is just toooooooo conservative and unrealistic. So the designers SEPARATELY evaluate wind loads and seismic loads at critical levels. Then they use the larger load (larger shear force and larger bending moment) in thickness calculations.

2- To calculate the shear or bending due to wind at a certain height of the shell you need to calculate the wind pressure which is applied to the vessel or tank above the height under investigation (note that the wind pressure might be variable in case of tall process towers or tanks). e.g. if the total height is 15m and you are investigating the shell at the level of 9m, then you need to calculate the wind pressure which is applied to the top 6m of the shell. Then the pressure is multiplied by the projected area (and normally multiplied by a shape factor) to give you the total shear force. This force is then multiplied by the distance from the level under investigation to the center of action of the load to give the bending moment (1/2 of the distance to the top of the tank, if the wind pressure is not varying).

3- For seismic load you normally calculate the horizontal seismic acceleration. Then to calculate the shear force you need to multiply the acceleration by the mass of the section. e.g. in the above example, the calculated acceleration is to be multiplied by mass of the above 6m section of the shell. To calculate the bending moment, the shear force is multiplied by the distance from the center of mass of the top shell section (top 6m in this example) to the height under investigation.

4- Beware that if the tank or vessel has conical or other types of head/roof, the seismic and wind loads applied to the roof needs to be taken into account, as well.

Cheers,

[duazo2009]

hi,

i hope this spreadsheet will be helpful for you..

[link Point to another website Only the registered members can access]
Enjoy..

Seth

[tturit]

Dear all who's advice me, thank you very mutch for your helping it was very useable

[shankargee]

thanq lot

[b4_dry]

no rapidshare please!

[losmoscas]

The link need password for download!! plz, the password!

[mrk]

thanks