The Complete Message:

The raft floor stapling security is not provided. TBDY 7.11.7

The message stapling safety is not ensured is given for raft floors without beams together with the solid and element name.

7.11.7 - Punching control in non-beam slabs and non-beam slab foundations can be performed on the basis of the vertical shear stress generated under the effects of earthquakes obtained from the finite element model solution and increased by the Resistance Excess Coefficient D with vertical loads . Finite element for upholstery that shear stress values obtained from the solution or base effective height d including, Eq. (7.27) 'will be achieved given condition.

                                                               τpd pd / d fctd                                                       (7.27)

7.11.10 - If the condition τ pdf ctd is not met and the plate thickness is not less than 250 mm, the punching strength of the slab can be increased by using reinforcement.

Possible solutions:

  • The thickness of the raft floor can be increased.

  • Punching equipment can be used provided that the plate thickness is at least 250 mm.

  • Concrete class can be increased.

  • Column / curtain size can be increased.

  • There are floor gaps within the punching perimeter and can be canceled.