E I

cm c

Therefore the bracing structure is a sway frame in the y direction

5.6.4.2 x direction

For frames without bracing elements, if X < greater of 25 or 15¬°JT for all A.3.2(3) elements carrying more than 70% of the mean axial force then the structure may be considered as non-sway.

no. of columns

( _ 4 x 2680 + 2 x 2960 + 4 x 4660 + 2 x 1700 = 38680/12 = 3223 kN

Sd.m

Columns type d carry less than this and are therefore ignored.

Assume effective length of 400 x 300 columns is 0.8 x 3.5 = 2.8 m (i.e. value appropriate to a non-sway condition).

Therefore structure is non-sway

0 -1

Post a comment