Report No. 1
2 Problem:
A structure suspended by EN3 tiebars is equivalent of 100,000 N. The tiebars each have a diameter of 28 mm. If the SF is 10, calculate the minimum number of tiebars
Given: Material EN3 W = 100,000 N d = 28 mm SF = 10
Required: n 

Solution:
From Chart 9:
For steel EN3 σ_{st} = 460 N/mm^{2}
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