piers better in profile or canned?

[odisseo 18]

for a cover of a ceiling of about 250sqm, better piers in hea beams, ipe or boxers maybe tubular, to give column effect. to realize a cover, they had suggested to me or a 100 hea, or a 160 mm ipe that as weight are similar or a 140 mm pipe what you think, if i put on a hollow box you believe can have corrosion problems due to the condensation that is formed inside, do you think you can oxidize and collapse?? let me know.

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[biz]

It's at the turn + at the vernicature.

 

[Legs]

surely putrelle hea and the like have greater advantages at plant level (you can hide tubes between the wings) and in the formation of the knots and also of the last moment changes.
the problem of condensation in the tubular is and cannot be denied. Very old structures, often, are corroded (even if they are galvanized) and you do not notice until you go to check.
but overall I do not feel that it is better one or the other solution. if you pay attention are both solutions that are okay. I remain of the opinion that in the end the taste of the client or the architect prevails. tubular structures require slightly greater care during design. However, if in the design phases you also consider the appearance of durability then solve any problem even on the condensation speech (to say, you could leave the holes necessary for the galvanization to breathe the inner portion or maybe you could increase the thickness of the walls a few mm. in mixed structures, usually, fills the column with concrete).

 

[odisseo 18]

Thanks for your valuable intervention, and that the "roof would remain open, therefore it would remain all the structure to sight, would not be a above elevation a widening but the protection of the concrete floor from the corrosive action of the time, the structure should be a remediation and maintenance of the solar slab not an extension. However thanks again to your opinion and your intervention thanks.

 

[cris77cool]

without doubt a tubular or tube is more beautiful to see than a profile similar to a he... but.. your choice is dictated by the location of the structure.
indoor or outdoor installation?
If your structure should be outside this, you better build it with a he or ipe inp:
a profile hea.. allows me to have visual and real control over corrosion that over time happens.
unlike:
a tubular allows me to have a visual control to its outside but not in its interior.
if you do not use a minimum thickness of 4mm (such as norm x ice push..) and do not go to make exhaust holes and galvanization (internal and external) you do not have control over the time of its "life", of the corrosion state to which it is exposed every day due to atmospheric agents.
to make it short...
a profile hea.. is safer than a boxed profile.