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The Complete Message:

Note

The curtain thickness cannot be less than 200 mm. (TBDY 2018 7.6.1.3)


In TBDY 2018 article 7.6.1.3, in buildings whose structural system consists of shear walls, if both the conditions given in Equation (7.14) are met, the wall thickness shall not be less than 1/20 of the height of the highest floor in the building and not less than 200 mm.

                              Σ A g / Σ A p ≥ 0.002 and V t / Σ A g ≤ 0.5 f ctd                                                     (7.14)

Even if the special condition given in 7.6.1.3 is fulfilled, you receive this message because the wall thickness is less than 200 mm.

Image Removedimage-20240322-111900.pngImage Added

Solution:

  • Give the size of the shearwall with the name and floor at least 200 mm.

  1. Choose shearwall, shearwalls.

  2. Enter the properties.

  3. In the general settings tab, increase the shearwall width and click the OK button.


Icons

ΣAg = The sum of the cross-sectional areas of the structural system elements working as a shearwall parallel to the earthquake direction considered at any story.

ΣAp = Sum of plan areas of all stories of the building

Vt = Total earthquake load (base shear force) acting on the building according to TBDY 2018 Section 4

fctd = Design tensile strength of concrete