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D. CSA-A23.3-10 Beam Design Brief dialog

The CAN/CSA-A23.3-10 Beam Design Brief has the following tabs for setting out the design parameters:

General tab

SettingDescription
Minimum Cover group Set the cover to the Top, Side, and Bottom of the beams (in mm).
Concrete group
SettingDescription
Strength fc' Type the design strength of the concrete, f'c (in MPa).
Aggregate Size Type the maximum size of aggregate used in the concrete mix (in mm).
Density Type the density of the concrete used (in kg/m3).
Interior / Exterior Exposure Select the exposure of the concrete based on it's use in the structure.
Forces group
SettingDescription
Include Torsion Effects Set this check box to consider torsion effects on the beam design.
At support, take design moment at Select where support moments should be considered: Center Line of Column or at Column Face.
Envelope The beams will be designed to the forces from the envelope selected from the pull-down list. Load Envelopes are added using the Define Envelope dialog.
Divide Beam into Segments Set the minimum number of segments that each member should be divided into for calculating the reinforcement.
Dead Load/Total Load Ratio Type the ratio of the dead load to total load to consider for service load.

Main Reinforcement tab

Note: Unless stated otherwise, the available bar sizes include: 6, 8, 10, 12, 16, 20, 25, 32, 40 and 50
SettingDescription
Top Bar Criteria

Set the Minimum and Maximum allowable bar sizes to be used on the top of the beams.

Bottom Bar Criteria

Set the Minimum and Maximum allowable bar sizes to be used on the bottom of the beams.  The link hanger size is used for detailing where no reinforcement bars are required for bending, but bars are required for supporting links.  

Other Bar Criteria

Set either the Minimum Side Bar Size to be used along with minimum and maximum spacing to achieve a suitable spacing on deep beams.

Main Bar group
SettingDescription
Strength Type the steel yield strength, fy, to use for the main reinforcing steel (in MPa).
Modulus Type the modulus of elasticity for the reinforcing steel, Es (in MPa).
Epoxy Coated Set this check box when epoxy coated reinforcing steel is used for the main reinforcing.

Click the Bending Dimensions… button to open the Bending Dimensions dialog, which is used to specify bending dimensions for each bar size.

Shear Reinforcement tab

SettingDescription
Shear Bar Criteria group
SettingDescription
Bar Strength Type the steel yield strength, fy, to use for the shear reinforcing steel (in MPa).
Min Spacing Type a minimum spacing to use between shear bar (in mm).
Modulus Type the modulus of elasticity for the shear reinforcing steel, Es (in MPa).
Bar Size

Select the bar size to use for shear reinforcement.

Min No. of Legs Select the number of legs (2, 3, 4, 5,or 6) to be used.

Click the Bending Dimensions… button to open the Bending Dimensions dialog, which is used to specify bending dimensions for each bar size.