Top curb angle 3

[rockeo]

Why do we use top curb angle for roof to shell attachment. Why don't we directly weld the roof to the shell?

 

[DSB123]

Normally because tanks are not swiss watches and some allowance for shape tolerances is needed. Also the Curb angle acts as a stiffener as well.

 

[JStephen]

I think the main reason is to help round up the shell prior to placing the roof.

 

[Dhurjati Sen]

Dear rockeo,

Why do we use top curb angle for roof to shell attachment?

1. It helps to maintain the rigidity of the shell.

2. It provides a space where you weld the roof.

Why don't we directly weld the roof to the shell?

The top shell course is the thinnest (say 6 mm) while the roof could also be of the same thickness. Impossible to make a fillet weld with the roof plate resting on the shell all the while maintaining the desired leg length of the fillet (in this case 6 mm).

Regards.

DHURJATI SEN
Kolkata, India