Hello.
I have a friend who has just become a builder - an engineer, that is.
As a fun task, he's going to calculate something. The answer he gives doesn't really matter, but I want decent input data.
I'm thinking of a carport resting on six pillars. Maybe 3x5 m. Built of wood with tar paper as roof covering.
What would be the relevant forces on the concrete bases?
Best regards,
Anders
I have a friend who has just become a builder - an engineer, that is.
As a fun task, he's going to calculate something. The answer he gives doesn't really matter, but I want decent input data.
I'm thinking of a carport resting on six pillars. Maybe 3x5 m. Built of wood with tar paper as roof covering.
What would be the relevant forces on the concrete bases?
Best regards,
Anders
It completely depends on which snow zone (= location) the carport is in.
Best answer
Västmanland has snow zone 2 and 2.5 depending on the location. Consider 2.5 kN/sqm + 0.3 kN/sqm for a light roof, i.e., 2.8 kN/sqm. Multiply this figure by 15 sqm and divide it by 6 pillars, and the result is 7 kN per pillar.
If he has just finished his education, he is counting on eurocode, which means that his answer will differ slightly from justus' answer, but it will certainly be in the same range.
I saw it more as a theoretical calculation exercise in mechanics than a concrete construction question. To distribute the load equally on all the posts, it assumes they are placed in a certain way. In practice, it's probably common for the middle posts to bear a greater load than the side posts.