Shearwall Length of Vertical Wall Segment / Wall Thickness (Hw/lw ≤ 2.0) Condition (4.3.4.9)
Except for basement perimeter shearwalls, H w / l w ≤ 2.0 control is made for shearwalls without holes. The internal forces of the shearwalls in this condition calculated according to the R coefficients given in Table 4.1 are automatically calculated and enlarged by multiplying the coefficient [3 / (1+ H w / l w )].
ICONS
D = Strength Redundancy
H w = Shearwall height
l w = Length of the shearwall on plan
R = Structural System Behavior Coefficient
Shearwalls with H w / l w ≤ 2.0 and outside the basement perimeter walls have the shear force on the walls, while the earthquake results calculated according to the R coefficient are specified with the Resistance Excess Coefficient D and in 4.3.4.9 (3 / (1+ H w / l w ) ] is enlarged by multiplying by the coefficient. As the design shear force, the shear force under the combined effect of the earthquake loads calculated by considering the Resistance Excess Coefficient D and the coefficient [3 / (1+ H w / l w )] together with the vertical loads is used.
Article TBDY 4.3.4.9 'to internal forces limits TBDY Article 7.6.6.3 recited in screen design shear forces are taken into account in the calculation.
Related Topics