STAAD.Pro Help

D. BS 8110 Column Design Brief dialog

The BS8110 Column Design Brief has the following tabs for setting out the design parameters:

General tab

SettingDescription
Concrete Specify the concrete strength,fcu , either selected as a standard grade or as a user specified value (in N/mm2).

Available concrete grades include: C30, C35, C40, C45 and C50

Specify the maximum aggregate size used in the concrete mix (in mm)

Specify the cover to the shear reinforcement (in mm)

Main Bars Specify the strength of steel to be used for the main bars either from the available steel grades or by specifying the steel yield strength to be used (in N/mm2).  If a user strength is defined, then the appropriate bar bending dimensions need to be specified.

Specify the minimum and maximum bar sizes to be used.

Available steel grades include: T(460) or R(250)

Links Specify the strength of steel to be used for the shear reinforcement bars either from the available steel grades or by specifying the steel yield strength to be used (in MPa).  If a user strength is defined, then the appropriate bar bending dimensions need to be specified.

Specify the minimum bar size to be used from 6, 8, 12, 16 or 20.

Available steel grades include: T(460) or R(250)

Column Factors tab

SettingDescription
Bracing Conditions  Specify whether the columns are braced in the local y-y and/or z-z directions.
Effective Length Factors Specify the effective length factors to be used in the local y-y and z-z directions.
Slenderness Limits This may be set to 1, or calculated by the design.
Area provided by starter bars Specify the area of starter bar steel (in mm2) to ensure that maximum area of steel is not exceeded by the design.

Member Loadcases tab

Used to select load case results which are used for column design with this brief.

SettingDescription
Available list Contains all primary load cases and load combinations in the STAAD.Pro input file.
Selected list

Load cases and combinations the results of which will be used for the column design when this brief is used in a Design Group.

Tool icon Description
> Adds the load case(s) selected in the Available list to the Selected list.
>> Adds all load cases from the Available list to the Selected list.
< Removes the selected load case(s) from the Selected list.
<< Removes all load case(s) from the Selected list.
Note: By default, no load cases or combinations are selected.