Rectangular area reinforcement (94)

Rectangular area reinforcement (94) creates reinforcement for a rectangular area. Select the part where the reinforcement is placed and pick two points to create the reinforcement. The part defines the thickness of the reinforced area, and the two points define the geometry and the location of the reinforced area.

Objects created

Longitudinal main bars: corner bars (4), side bars
Stirrups
Intermediate links
Top and bottom bars

Use for


Situation	Description
	Concrete wall panel with corner and side bars inside the wall. Top and bottom ends reinforced. Intermediate links tie side bars at every second stirrup. 1 No rotation 2 Rotation in plane 3 Rotation out of plane

Selection order

Select the part.
Pick the first point.
Pick the second point.

Picking the points (2 and 3) determines the area where the reinforcement is placed.

The reinforcement is created automatically when the second point is picked.

Part identification key


	Part
1	Corner bars
2	Side bars
3	Stirrups
4	Intermediate links
5	Top / Bottom bars

Picture tab

Use the Picture tab to select the reinforcement location and to set the reinforcement direction.

Rectangular area

Select how the reinforcement is extended over the wall.


Option	Description
	Column reinforcement area
	Area reinforcement with vertical rebars
	Beam reinforcement area
	Area reinforcement with horizontal rebars
	Area reinforcement using input points that define the direction for the creation plane Define the width of the area.

Rotation

Rectangular area reinforcement (94) is based on the geometry of a standard panel. Using the component on slabs or beams in certain planes can affect the geometry of the reinforcement. By using the In plane or Out of plane options, you can adjust the reinforcement to the correct behavior.

Select the reinforcement direction in different part geometry and rotation situations:

No
In plane
Out of plane

Main bars tab

Use the Main bars tab to control the corner bar properties, the symmetry options, rotation, and concrete cover thickness.

Basic corner bar properties

Define the grade, size and bending radius of the corner bars. The active settings depend on the selected symmetry option.


Option	Description
Grade	Define the strength of the steel used in the reinforcing bars.
Size	Define the diameter of the reinforcing bar.
Bending radius	Define the bending radius of the corner bars.
	Define the concrete cover thickness. Select whether the thickness is the same on all sides.

Symmetry options

Select the symmetry option. Use the symmetrical conditions to define which of the corner bars have the same grade, size, and bending radius properties. The corner bars that have same properties are symmetrical.

Rotation

In square reinforced parts, you can select the perpendicular sides if the sides require different reinforcement. You can rotate all reinforcement by 90 degrees.

Additional corner bar properties


Option	Description
Class	Use the Class to group reinforcement. For example, you can display reinforcement of different classes in different colors.
Name	Define a name for the main bars. Tekla Structures uses the name in drawings and reports.
Prefix	Define a prefix for the part position number.
Start number	Define a start number for the part position number.

Hooks at top / bottom


Option	Description
Type	Select the hook angle.
Length	Length of the hook.
Bending radius	Bending radius of the hook.

Bar ends tab

Use the Bar ends tab to control the length of the vertical and horizontal extensions for the corner bars and side bars, and the cranking.


Option	Description
Bar creation	Select whether the extensions of corner bars and side bars are created symmetrically on both sides of the rectangular reinforcement. If you select Not symmetrical, you can enter separate extension values for the opposite sides of the reinforcement.
Vertical extension	Define the length of the vertical extension for corner bars and side bars outside the reinforced part. The active settings depend on Bar creation: Symmetrical or Not symmetrical.
Horizontal extension	Define the length of the horizontal extension for corner bars and side bars. The active settings depend on Bar creation: Symmetrical or Not symmetrical.
Top corner bar direction Bottom corner bar direction	Select the direction of the corner bars.
Cranking	You can create cranked reinforcing bars at the top and at the bottom of the reinforcement. To activate the cranking options, select in the Top corner bar direction and Bottom corner bar direction lists. Define the dimensions for the cranked bars. To successfully create the cranked reinforcing bars, ensure that the bending radius is not too large.
Edge dimensions	Define the edge distance from the reinforced part corner to the point where the cranking starts . Define the cranking separately for the corner bars and the side bars.

Side bars tab

Use the Side bars tab to control the number of side bars, side bar spacing and placing, symmetry options, and properties.

Number of side bars

Define the number and spacing of side bars. You can define two sets of side bars on each side of the rectangular reinforcement.

You can define the side bars separately for each side.

The active settings depend on the selected symmetry option.

Placing of side bars

Select the horizontal and vertical placing for the side bars. Select whether the bars are placed starting from the corner or at equal spaces.


	Distance between corner bars and side bars.
	Distance between side bars.

Symmetry options

Select the symmetry option. Using the symmetrical conditions you can define which side bars are symmetrical, and which side bars use the same properties.

Side bar properties


Option	Description
Grade	Define the strength of the steel used in the reinforcing bars.
Size	Define the diameter of the reinforcing bar.
Bending radius	Define the bending radius of the side bars.
Class	Use the Class to group reinforcement. For example, you can display reinforcement of different classes in different colors.
Name	Define a name for the side bars. Tekla Structures uses the name in drawings and reports.
Prefix	Define a prefix for the part position number.
Start number	Define a start number for the part position number.

Stirrups tab

Use the Stirrups tab to control the stirrup properties.

Stirrup dimensions


	Description
1	Define the thickness of the concrete cover over the stirrups at the top and the bottom of the rectangular reinforcement. The default cover thickness is `50` mm. Group 1 is the top stirrup group, 5 is the bottom stirrup group. Group 3 is always created.
2	Define the spacing of stirrups in each stirrup group.
3	Define the number of stirrups in each stirrup group.
4	Select how the stirrups are distributed.
5	If you select the Distance list option, enter different spacing values for the groups.
6	Define the cover thickness for each stirrup group.
7	Define the gaps between the stirrup groups.

Create stirrups

Select whether the stirrups are created as individual reinforcing bars, rebar group, or spiral rebar group.

Rebar lapping at stirrup corners

Select how the rebars lap at the stirrup corners. The options are 135-degree hooks or 90-degree hooks at the bar end, or overlapping U-shape stirrups.

You can define the overlap length for the U-shape stirrups.

Ignore cuts

If you have a recess or a hole in the reinforced part, you can select to ignore the cuts at the top and the bottom of the part when the stirrups are created.

Stirrup properties


Option	Description
Grade	Define the strength of the steel used in the reinforcing bars.
Size	Define the diameter of the reinforcing bar.
Name	Define a name for the stirrups. Tekla Structures uses the name in drawings and reports.
Class	Use the Class to group reinforcement. For example, you can display reinforcement of different classes in different colors.
Prefix	Define a prefix for the part position number.
Start number	Define a start number for the part position number.
Overlap length	Define the overlap length for the U-shape stirrups.

Intermediate links tab

Use the Intermediate links tab to control the intermediate links to tie all side bars.

Intermediate links are created for each stirrup group.

Note:

Intermediate links are created between Side bars 1 or Side bars 2 that are symmetrical.

For Side bars 2 intermediate links are created only if no Side bars 1 are created.

Create as one group

Select whether all the stirrups are created as a single group.

Properties of intermediate links


Option	Description
Grade	Define the strength of the steel used in the reinforcing bars.
Size	Define the diameter of the reinforcing bar.
Name	Define a name for the stirrups. Tekla Structures uses the name in drawings and reports.
Class	Use the Class to group reinforcement. For example, you can display reinforcement of different classes in different colors.
Prefix	Define a prefix for the part position number.
Start number	Define a start number for the part position number.

Spacing of intermediate links


Option	Description
	Spacing is the same as stirrup spacing.
	Spacing is double the stirrup spacing (intermediate links at every second stirrup).
	Same as above, but for alternate stirrups.
	No intermediate links are created.

Intermediate link type

Select the type of the link.

Intermediate link pattern

Select whether intermediate links go in one direction or in a crossing pattern.

Hook orientation

Select the hook orientation for both sides.

Closed stirrups as intermediate links

Select whether to use closed stirrups as intermediate links.

If you select closed stirrups, select the type of the bar lapping at the stirrup corners.

Zone without intermediate links

Define the zone length where intermediate links are not created. In this zone, the stirrups tie the side bars. The distance is measured from the stirrup corner.

If you have selected to use closed stirrups, you can define the distance from the corner of the closed stirrups.

Top / Bottom tabs

Use the Top and Bottom tabs to control the top and bottom reinforcement thickness of the concrete cover, number of bars, spacing and rotation.

Number and spacing of bars

Define the number and spacing of the top or bottom bars.

You can define the number of transverse bars in both cross directions.

Top / bottom reinforcement


	Description
1	Define the concrete cover thickness from the top / bottom of the rectangular reinforcement.
2	Define the length of the rebar legs.
3	Define the concrete cover thickness from the sides of the rectangular reinforcement.
4	Define the distance from the edge of the rectangular reinforcement to the edge of the first rebar in the group.

Placing of top or bottom bars

Select the horizontal and vertical placing for the top or bottom bars. Select whether the bars are placed starting from the corner or at equal spaces.


Option	Description
	Distance between corner bars and side bars.
	Distance between side bars.

Rotation

Select how to rotate the reinforcement at the top or bottom.


Option	Description
	No rotation. Transverse bars are perpendicular to the longer side of the rectangular reinforcement.
	Rotation angle is 90 degrees. Transverse bars are parallel to the longer side of the rectangular reinforcement.

Top and bottom reinforcement properties


Option	Description
Grade	Define the strength of the steel used in the reinforcing bars.
Size	Define the diameter of the reinforcing bar.
Class	Use the Class to group reinforcement. For example, you can display reinforcement of different classes in different colors.
Name	Define a name for the top or bottom bars. Tekla Structures uses the name in drawings and reports.
Prefix	Define a prefix for the part position number.
Start number	Define a start number for the part position number.

Rebar assembly tab

Use the Rebar assembly tab to add the created reinforcement as a rebar assembly to the cast units.

Create as rebar assembly

You can add the created reinforcement as a rebar assembly to the cast units with a predefined assembly type, name, prefix, and start number.


Option	Description
Create as rebar assembly	Select Yes to create all reinforcement as one rebar assembly, and to include it to the cast unit of the input part.
Rebar assembly type	Select the rebar assembly type. If you do not select the type, the default value of the rebar assembly is used.
Name, Profile, Start number	Define the name, profile, and start number. If you do not define these, the default values of the rebar assembly are used.