supported frangible roof and anchored tank roof slope

[inammanj123]

Dear ALL,

I am working on an anchored tank with frangible roof, and supported on rafter only.Its diameter is 9.5 m and a height of 16 m. This means that my tank must satisfy 5.10.2.6.d of API 650 My questions are:

1-As per 5.10.2.6.d all points of 5.10.2.6.a are applicable. this means that slope of frangible anchored tank can not be more than 1/6(9.5 degrees)??
2- can i lower my slope to 1/16, because my roof supported on rafters?
3- DLS used in the formula,5.10.2.6.a.5, has to be corroded weight of shell or nominal weight?

Thanks

 

[DSB123]

You should not double post !!!!!!!!!

 

[inammanj123]

ok sure but can u rely on my query