See: Concrete beam and column groups , Steel member design groups

• Steel
• Concrete
• Timber
• General
• Cold formed
• Cold rolled

Construction,

Fabrication

See: Concrete member autodesign, Steel member autodesign

(steel only)

(concrete only)

This option controls the starting point for auto-design procedures and is therefore only displayed if Automatic design is ‘on’. It applies to both longitudinal bars and links.

• Minima (default) - removes the current arrangement and begins with the minimum allowed bar size.

• Current - the auto design commences from the current bar arrangement.

See: Concrete member autodesign, Steel member autodesign

• On = designed for gravity combinations only
• Off = designed for gravity and lateral combinations

See: Designing individual members for gravity only

Rotation

(steel only)

Grade/Class

(Concrete columns only)

Minor snap level,

Minor offset

Face C cont. rest.

(steel only)

See: Restraints

Fixity Bottom

• Pinned
• Fixed
• Moment (pin My)
• Moment (pin Mz)

See: Column releases

Torsional load release bottom

Select this flag if you want open structure wind loads to be calculated.

See: Open structure wind loads

Min depth,

Max width,

Min width

See: Instability factor

Assuming concrete sections are cracked has a direct affect on the analysis; smaller Modification Factors are applied to cracked sections causing an increase in deflection. Indirectly the design can also be affected because the sway/drift sensitivity calculations are also influenced by this assumption.

See: Cracked, partially cracked, and uncracked concrete members

Permanent load ratio option

Relative humidity (RH)

Age of loading

You are required to supply a value for the permanent load ratio parameter. A default of 0.65 has been assumed, but you are advised to consider if this is appropriate and adjust as necessary.

Age of loading is the age at which loading is applied.

See: Design parameters (Eurocode only)

• Checked - confinement reinforcement is designed separately in three regions.

• Cleared - the same confinement reinforcement is designed for the whole stack.

Direction 1,

Direction 2

• Braced

• Bracing

Direction 1 effective length factor,

Direction 2 effective length factor

• Calculated

• User input value

For the unrestrained length calculation:

• if a slab exists at a panel end, it can be ignored by unchecking the relevant box.

• If no slab exists at that end, the setting is redundant - in which case the program considers the setting at the remote end of the next panel instead.

See: Stiffness

Columns are divided into stacks and walls are divided into panels at floor levels where members or slabs connect to the column/wall. For the purposes of Sway/Drift, Wind Drift and Seismic Drift checks only you can override the default stack/panel divisions by merging a stack/panel with a lower stack/panel. The length of the combined stack/panel is then used in the checks.

By default all stacks of all columns are taken into account in the calculation to determine the sway sensitivity of the building. The results of this calculation being accessed from the Review toolbar.

This parameter provides a facility to exclude particular column stacks from these calculations to avoid spurious results associated with very small stack lengths. You can either clear the checkbox located under ‘All Stacks’ to exclude the entire column, or you can exclude a particular stack by clearing the checkbox located under that stack only.

Wind drift ratio

Wind drift is automatically checked against the specified limiting ratio, (which can be set differently for different columns). The results of this calculation are accessed from the Review toolbar.

If you don’t want this check to be performed you can either clear the checkbox located under ‘All Stacks’ to exclude the entire column, or you can exclude a particular stack by clearing the checkbox located under that stack only.

If this is the case, select the checkbox, and then specify the SFRS direction and type.

Shear demand/shear capacity ratio in Dir 1

Shear demand/shear capacity ratio in Dir 2

(ASCE 7 code only)

When working to the ASCE 7, the engineer can directly define the shear demand / capacity ratio (beta) in each direction. The default value of 1.0 could be over-conservative.

The setting is applicable to all years of the ASCE 7 code and has the following default and limits: Default = 1; Min = 0.001; Max = 10.

• When an Autodesign is performed, the design will be incremented to achieve a utilization ratio less than the ratio limit.

• When an Autodesign is performed, the design will be incremented to achieve a utilization ratio less than 1.0.

See: Apply user defined utilization ratios

• When a Check is performed, the check will pass provided the utilization ratio is less than the ratio limit.

• When a Check is performed, the check will pass provided the utilization ratio is less than 1.0.

See: Fire proofing

Name

Finish

Class

Phase

Note

File

A customizable list of the attributes that can be applied to individual members and panels.

See: Create and manage user-defined attributes

In a multi-stack column properties can be entered for a specific stack, over-riding those defined at the All stacks level.

Splice offset

See: Splice and splice offset

KLL

(Head Code ACI/AISC)

Specify the KLL factor in accordance with Table 4-2 in ASCE 7-05/ASCE 7-10.

See: Overview of live or imposed load reductions

Count the floor as being supported

(Head Code Eurocode, BS or IS)

If checked, the floor will be treated as supported when calculating the live/imposed load reductions.

See: Overview of live or imposed load reductions

Apply face A eccentricity, etc.

See: Steel column connection eccentricity moments