View/Update - Main Reinforcement Tab
The Main Reinforcement tab within the View/Update page provides the engineer with a means of modifying top and bottom longitudinal bar sets that have been assigned to the beam, either during optimization, or manually by the engineer. When the Main Reinforcement tab is selected, the graphical display area will display a representation of the longitudinal bar sets in the beam line. The envelope data displayed both graphically and numerically will correspond to the longitudinal reinforcement assigned to the beam line. The corresponding provided and required envelopes are displayed below the bar sets. The yellow region represents the required capacity values along the beam line, while the purple outline represents the provided values.
While the graphical display area displays a graphic representation of the envelope data for the beam line, the Envelope Data section of the View/Update dialog box displays the numeric values for provided and required capacities as well as provided and required reinforcement area. The values displayed correspond to the location of the red slider in the display area. Moving the slider will update the values to the right. The user can also update the numeric values by selecting a support number and a distance from that support in the Envelope Data area, which will in turn update the location of the red slider.
| Setting | Description | ||||||
|---|---|---|---|---|---|---|---|
| Dimensions | The Dimensions area in the upper left-hand corner displays detailed information about the selected span in the beam line, such as the beam number, the span length, cantilever lengths when applicable, section dimensions for the beam, and information about the start and end supports for the beam. The drop-down Span list box can be used to select any span in the beam line. | ||||||
| Reinforcement | The Reinforcement area displays all relevant information, in tabular form, for the final optimized flexural bars for the beam line. The radio buttons at the top are used to select either the top or bottom longitudinal bars. The information in the spreadsheet area is updated to reflect the selection made in the reinforcement radio button. A discussion of each of the column values in the spreadsheet is presented below.
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| Qty. | This value is the number of bars in the bar set. | ||||||
| Bar Size | This is the size of all bars in this bar set. The bar sizes available in this drop-down box are limited to those that the user has chosen to consider in the Beam Design Criteria - Reinforcement menu. | ||||||
| Start/End | These two values are the start and end locations (respectively) of the bar set relative to the centerline of the support specified in the Support column. | ||||||
| Reinf Layer | This value displays whether the bar group occurs in the "Upper" or "Lower" reinforcement layer. RAM Concrete Beam allows one or two reinforcement layers for both top and bottom flexural reinforcement. During optimization, whether one or two layers are used is decided by the program. If the user is editing the reinforcement manually, he can enter in which layer the bar group is to be placed. | ||||||
| Bar End | These values are the left and right bar end conditions. There are three types of bar end conditions considered in RAM Concrete Beam: Straight, Splice, and Hook. A Straight end condition is generally used when a bar group is terminated along the beam line span and there is no need to develop the full bar capacity at the bar curtailment point. A Straight end condition has no knowledge of adjacent bars and thus does not consider adjacent bar groups when calculating bar capacity. A Splice end condition is used to lap two groups of bars that share the same endpoint. A Splice end condition is cognizant of any bar groups with which it shares an endpoint and considers these bar groups in calculating the bar capacity along its end. A Hook end condition is used when the full tensile capacity of the bar is required even up to the bar endpoint. |
Each of these quantities can be edited directly by the user (except for No.) by clicking in the appropriate cell and entering or selecting a new value. The graphical display will then immediately be updated to reflect the new data. The design may then be rerun for the new data by selecting "Analyze". The new design may be made permanent by selecting "Update Database". For easy cross-reference between the spreadsheet area of the tab and the graphical display area, when a bar set is selected in the spreadsheet area, the corresponding bar set will be highlighted in the graphical display area. When a bar set is selected in the graphical display area, the first cell in the corresponding line in the spreadsheet will be highlighted.