Structural bulkhead in ISO

Hi all

I have some doubts about WT bulkheads and structural bulkheads but non-watertight in ISO.

the requirement in ISO 2008 for structural bulkheads but non-watertight are not rather strictly (clause 11.8) than WT bulkheads (clause 8.3.1), when the structural bulkhead support girder, whether need to be calculated as WT bulkheads

 

WT bulkheads and structural bulkheads

Hi all

I have some doubts about WT bulkheads and structural bulkheads but non-watertight in ISO.

the requirement in ISO 2008 for structural bulkheads but non-watertight are not rather strictly (clause 11.8) than WT bulkheads (clause 8.3.1), when the structural bulkhead support girder, whether need to be calculated as WT bulkheads[/QUOTE]

 

Probably you mean ISO 12215-5 2008.
This is my opinion: structural bulkheads, presumably, are prepared to support the girders. In any case, if in doubt, you can place beneath the giirder, a stronger reinforcement (one of the reinforcements of the bulkhead) that can do the functions of a pillar, and suppose that the girder is supported by this pillar.

 

Thank you for your help, which rule should be referenced for pillar in ISO , 12215-9?

 

To my knowledge, there is nothing in the ISO 12215 in relation to the pillars.
I use Euler's formula for pillars under pure compression :

A = 100 * p * (lL/ r) ^ 2 / (c * pi ^ 2 * E)

A = area of section
P = total load (based on design pressure on deck)
L/r = slenderness ratio
C = coefficient of constraint, which depends on end conditions

Fixed ends, c = 4
Round ends, c = 1
For the end conditions that occur in practice, C can rarely be assumed greater tan 2​

E = modulus of elasticity

 

A good idear Thank you verry much