S DS = Short period design spectral acceleration coefficient [dimensionless]
E d (Z) = (Z) direction earthquake effect under the effect of the design underlying earthquake
G = Constant load effect
4.4.3. Vertical Earthquake Impact
188.8.131.52 - Vertical earthquake calculation in buildings classified as DTS = 1, DTS = 1a, DTS = 2 and DTS = 2a and containing the following elements, based on the local vertical vibration modes of these elements, only the vertical elasticity defined in 2.3.5 for these elements According to the acceleration spectrum , it will be done with the method given in 4.8.2 . In this calculation of the vertical earthquake effect E d (Z) , R / I = 1 and D = 1 for all structural systems .
(a) Buildings containing beams whose openings have a horizontal projection of 20 m or more,
(b) Buildings containing consoles whose openings have a horizontal projection of 5 m or more,
(c) Buildings containing columns resting on beams,
(d) Buildings whose columns are inclined relative to the vertical.
The vertical earthquake effect E d (Z) in the structural system parts other than the elements specified in 184.108.40.206 - 220.127.116.11 and in buildings other than the definition in 18.104.22.168 will be calculated approximately with Equation (4.10) without making a special calculation.
Here, G shows the constant load effect and S DS shows the short-period design spectral acceleration coefficient defined in 2.3.2 .