GB50010 Beam Design Brief dialog

Used to specify global parameters for designing and optimizing concrete beams for the GB50010 design code.

General tab

Setting	Description
Cover	Type the cover to the top, bottom, and sides of the beams (in mm).
Seismic Design	Set this option to consider seismic provisions in the design.
Design for Torsion	Set this option to consider torsion in the design.

Setting

Description

Main Bar Spacing

For both Top and Bottom bars, select to either use the Code-specified spacing or select the Use option to type a spacing distance.

Side Bar Criteria

Select the reinforcing bar size from the drop-down menu.

Cover to Center of Bars

Type a edge distance to center of bars to the first and second layers of reinforcing steel.

Main Bar Selection

Setting	Description
Keep all bars in layer same size	Set this option to direct the program to select a single reinforcing bar size for all bars in a layer.
Adjacent bars may differ in size by	When the Keep all bars in layer same size option is cleared, then you can specify the range of bar sizes by which adjacent bars can vary.
Select Based on	Used in selecting the optimization criteria for selecting the best bar size and quantity combination from all the acceptable combination of bar sizes and quantities (e.g., Selection by area will give the least bar area). The program will use these selection criteria to try and select reasonable bar sizes. When a set of bar size and quantity combinations are acceptable, the selected set will satisfy both the user defined criteria and internally defined selection criteria that are used to give reasonable bar sets. Minimum (Reinforcement) Bar Area Minimum Bar Spacing Maximum Bar Spacing

Main Bar Criteria

Setting	Description
Allow 2 layers	Set this option to allow two layers of bars for the main reinforcing steel.
Main Bars	Opens a dialog which is used to pick the bar sizes which the program will consider for the design of the longitudinal (main) reinforcement.

Setting	Description
Shear Bar Size	Select the reinforcing bar size from the drop-down menu.
No. of Legs	Type (or use the arrows to increment) the number of legs in a section.
Shear Bar Spacing	Type the minimum shear bar spacing to use in both a Compact Zone and a Non-Compact Zone.
Link Type	Select whether the links should be scheduled as Closed or Open.
Design Shear Force	Select the option to design the shear reinforcement up to the center line of the column (Center of Support) or edge of support (Column Face). Note that the column or support face is defined in the Spans Table.