The reinforcement for the floor slab is complete. Now the wall reinforcement is missing. This part of the exercise involves placing the starter bars.
Tools: Objective:
Bar Shape:
Open Stirrup Stirrup, closed Modify Placement
Display Mode Place Bar Shape:
Along placing line Dimension Line, Label
To enter and place starter bars
1 Using the right mouse button, double-click the open stirrups of the floor slab wherever you like.
The Bar Shape tool starts and the Open stirrup bending shape is active. The diameter is set to 12.
2 Check that the layer BR_GEN is selected. If it isn't, activate it on the Format menu or toolbar.
3 In the parameter area of the palette, select the Same concrete covers check box, enter 0.04 for the Concrete cover and 1.00 for the Segment length 1 and 3.
4 In section A-A point to the left outer edge of the wall until the open stirrup expands correctly, then click the left mouse button.
4
5 Press ESC to label the bar.
6 Place the bar label in the section.
Place automatically is still set in the input options. The open stirrups are placed across the entire shaft wall on the left in the floor plan.
If they aren't, click New placing line in the parameter area of the palette and define the placing line accordingly.
Engineering Tutorial Unit 4: Reinforcement Drawing 157
7 Select Dimension Line, Label on the Repeat menu, click a bar in the placement you just created in plan, deactivate the Bar markers option and place the dimension line.
8 Deactivate the Custom text option and place the label.
9 Press ESC to quit the tool, click the placement in plan with the right mouse button and, on the shortcut menu, choose Modify Placement Display Mode.
10 Choose Show selected bars, click the three bars just below the middle (see following illustration) and press ESC twice.
The floor slab should now look like this:
Now you will place mark 7 in more walls.
Remember: you inserted a door opening in the wall on the right when you created the floor plan of the basement. In this region, mark 7 will not be placed. You will use closed stirrups instead. The placing region for mark 7 will be defined in the floor plan of the shaft walls. The placed bars, however, will only be displayed in the floor plan of the floor slab as the starter bars are not within in the clipping area of the shaft walls.
To place and rotate starter bars
1 Click Place Bar Shape (Bar Entry and Placement flyout) and confirm the value displayed in the dialog line: mark 7.
2 Deactivate the Align option in the input options.
3 Place mark 7 in the lower transverse wall (from left to right). To define the end points of the placing line, click the points where the inside edges of the longitudinal walls and the outer edge of the bottom wall intersect (use Point of Intersection on the shortcut menu).
Engineering Tutorial Unit 4: Reinforcement Drawing 159
3 3
4 In the parameter area of the palette, set the Angle of rotation to Perpendicular. The preview of the bending shape changes accordingly.
5 In the input options, click Show selected bars, select the bars you want to display and press ESC.
6 Click in the workspace with the right mouse button and choose Dimension Line, Label, place the dimension line and the label in the floor plan and press ESC to quit the tool.
7 Use the Copy and Mirror tool to copy the reinforcement and its label to the transverse wall at the top. (Alternative: do not change the Angle of rotation and continue to place the bars in the transverse wall at the top.)
Tip: The sequence in which you enter points is irrelevant with the Align placing mode.
With the Move or Rotate options, however, the sequence in which the points are entered defines the direction of the placing region.
Refer to the chapter
”Reinforcement methods - placing mode: align / move / rotate” in the Allplan help:
8 Click Place Bar Shape again and confirm the value displayed in the dialog line: mark 7.
The Align option is not active, and the angle of rotation is set to Perpendicular.
9 Placing line from point: click the bottom right outer corner of the 30 cm shaft wall in the floor plan of the shaft walls.
10 Placing line to point: click the point where the lower reveal and the 30 cm shaft wall intersect.
The placing region is highlighted in the floor plan of the shaft walls, and the placement is displayed in the floor plan of the floor slab. As the starter bars for the wall are not within the clipping area of the shaft walls, all the bars are displayed, regardless of the selected display mode.
11 Press ESC to finish.
12 Use the same approach to place the starter bars above the door opening. To define the first point of the placing line, click the point where the upper reveal and the 30 cm shaft wall intersect.
Click the top right outer corner of the 30 cm shaft wall to define the second point of the placing line.
Engineering Tutorial Unit 4: Reinforcement Drawing 161 13 Select Dimension Line, Label on the Repeat menu, click a bar
in the placement you just created in the floor plan of the floor slab and place the dimension line and the label.
14 Create the dimension line and the label for the second placement and press ESC to quit the tool.
15 Using the right mouse button, click one of the placements in the floor plan of the floor slab, click Modify Placement Display Mode on the shortcut menu and select Show middle bar only.
16 The display of the placement clicked changes. Click the second placement and press ESC to quit the tool.
You will now create and place a closed stirrup in the wall near the door opening.
To create and place a closed stirrup in the door area
1 On the Repeat menu, click Bar Shape.
Check that the layer BR_GEN is selected. If it isn't, activate it on the Format menu or toolbar.
2 Select the Stirrup, closed bending shape in the list box at the top of the Bar Shape palette.
3 In the parameter area of the palette, select diameter 12 and enter 0.04 for the concrete cover.
4 Move the crosshairs in section A-A over the left outer edge of the wall on the right until the open stirrup expands correctly, then click the left mouse button.
5 Press ESC and place the label for the bar in the section.
6 Automatic depth placement is not useful as the stirrups are only placed around the door opening. Deactivate the Place automatically option in the input options. The Align option is active.
7 Define the placing line by clicking a corner of the upper reveal in the floor plan of the shaft walls and then the corresponding corner of the lower reveal.
8 Select Dimension Line, Label on the Repeat menu and create dimension lines and labels for the placements in the floor plans.
9 On the Repeat menu, click Modify Placement Display Mode, select Show middle bar only and click the placement in the floor plan of the floor slab.
10 Press ESC to quit the tool.
Engineering Tutorial Unit 4: Reinforcement Drawing 163 This completes the starter bars for the walls.