Check if structure can be considered as braced with the x columns forming the bracing elements

To be considered as braced, the bracing elements must be sufficiently stiff to 4.3.5.3.2(1) attract 90% of the horizontal load. Since all columns are the same length, this will be so if m bracing

5.6.3.1 y direction

bracing

4 x 15820

Hence the four 750 x 450 columns can be treated as bracing elements carrying the total horizontal loads and columns type a, b and d can be designed as braced in the y direction

5.6.3.2 x direction

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