The Complete Message:
| Note |
|---|
Carrier Structural system type A24 (in X / Y direction) is selected. Curtains Shearwalls should be used in A24 carrier structural systems. |
...
A24 structural system is defined in the earthquake regulation as buildings where the moment-transferring ductility level of the earthquake effects are met by single-direction geared reinforced concrete frames with or without filling (hollow blocks) and reinforced concrete walls with high ductility level .
However, the curtain shearwall is not defined in the project.
Possible solutions:
Curtains Shearwalls should be added in the direction requested in accordance with the A24 carrier structural system in the project .
If curtain shearwall will not be used in the building, A31 must be selected in the Analysis Settings / TBDY 2018 Earthquake Code Wizard. Bearing systems consisting of filled (filler) or unfilled single-direction geared reinforced concrete frames will be classified as structural systems with limited ductility level and will only be used in buildings with DTS = 3 and DTS = 4. (TBDY 4.3.4.3)
...