Design Criteria
The settings established here are applied to the entire model. Editing these settings will clear the design results for the model.
The Design Criteria dialog is accessed from the menu.
| Setting | Description |
|---|---|
| Clear Bar Cover | The distance the outer edge of the horizontal reinforcement will be placed from the face of the wall. See Figure in Section 6.2 for more details. |
| Bar Spacing | You can select to use the bar spacing limits specified by the selected design code, or can override the code by selecting custom values. |
| Bar Placement at Wall FAce | Available for ACI codes. Allows you to determine how the program will perform the bars distribution and placement. You can set the Horizontal or Vertical bars as closest to the wall face for Cast-In-Place or Tilt-up walls. |
| Code Options | The concrete shear capacity of walls may be calculated
according to 11.9.6, or the more basic method of 11.9.5. Sections 11.9.9.3 and 11.9.9.5, pertaining to maximum bar spacing, may give unrealistically small spacing limits when the length of the wall segment considered is relatively short. You may specify a minimum length value to be considered in the equations within each code section, which will override the true wall segment length in cases where it is greater. |
| Structural Wall Category | Wall category as defined in Chapter 21 of ACI 318 to be considered when performing design checks. |
| IBC Parameters | The deflection amplification factor, Cd,
and importance factor, I, are
specified here. These values are used in calculating the limiting
neutral axis depth, c, for the requirement of special boundary reinforcement
per Section 21.9.6.2. You can choose to consider the IBC amendments to ACI 318 contained in Section 1908. |
| Resistance Factor for Shear | You can choose to consider a shear resistance factor of either 0.75 or 0.60. |
| Wall Boundaries | Where vertical reinforcing is required to be confined by ties, the bar size used for all ties is specified here. |