Rectangular column reinforcement (83)

Last updated March 10, 2020 by Tekla User Assistance tekla.documentation@trimble.com

Software version: 
2020

Rectangular column reinforcement (83)

Rectangular column reinforcement (83)

Rectangular column reinforcement (83) creates reinforcement for a concrete column that has a rectangular cross sectiongeometrical form of a part sectioned perpendicular to its axis

.

Objects created

  • Longitudinal main bars: corner bars (4), side bars
  • Stirrups
  • Intermediate links
  • Column end reinforcement

Use for

Situation Description

Rectangular concrete column with corner bars and side bars bent outside the column. Side bars on long sides. Intermediate links tie side bars at every second stirrup.

Rectangular concrete column with straight corner and side bars entirely inside the column. End of column reinforced.

Limitations

Do not use for round columns.

Selection order

  1. Select the main part(1) part that exists in a building object and that determines the position number for the assembly or cast unit and the direction of assembly or cast unit drawings

    (1) Main part can be an assembly main part or a cast unit main part.

    (2) input part that the user selects first when creating a component

    (2) Connections and details always have a component main part.

    (column).

    The component is created automatically when the part is selected.

Part identification key

  Part
1 Corner bars
2 Side bars
3 Stirrups
4 Intermediate links

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

Strength of the steel used in the reinforcing bars.

Size

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 columns, you can select the perpendicular sides of a column if the sides require different reinforcement. You can rotate all reinforcement in a square column by 90 degrees.

Additional corner bar properties

Option Description
Class

Use 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

Prefix for the part position number.

Start number

Start number for the part position number.

Bar ends tab

Use the Bar ends tab to control the length of vertical and horizontal extensions for the corner bars and side bars, and the crankingrebar set end detail that creates cranks for certain reinforcing bars in a rebar set

Cranks refer to crank-shaped bends and they can be created with rebar set end detail modifiers or rebar set splitters.

.

Bar creation

Select whether the extensions of corner bars and side bars are created symmetrically on both sides of the column.

If you select Not symmetrical, you can enter separate extension values for the opposite sides of the column.

Vertical extension

Define the length of the vertical extension outside the column for corner bars and side bars.

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.

Corner bars

Side bars 1

Side bars 2

Select the hook type, and define the hook length and bending radius.

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 column.

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 column corner to the point where the cranking starts .

Select cranking from the edge or center line of the rebar:

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 column.

You can define the side bars separately for each side of the column.

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

1

Define the thickness of the concrete cover over the stirrups at the top and the bottom of the column. 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 groupgroup of reinforcing bars that are side by side and have identical properties, except the possible variation in bar lengths

, or spiral rebar group.

Rebar lapping at stirrup corners

Select the 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 holesmall hollow open throughout a part or assembly that is usually used for fastening parts with bolts or other such objects

Hole is created in the same way as bolts and hole properties are defined in the bolt properties.

in the column, you can select to ignore the cuts at the top and the bottom of the column 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.

If you have rectangular columns that have very large cross sections, the side bars may be far from the corners of the stirrups. You will need to create intermediate links to tie all side bars, and to prevent them from buckling when they are in compression.

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

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.

Column top / bottom reinforcement

Description

1

Define the concrete cover thickness from the top / bottom of the column.

2

Define the length of the rebar legs.

3

Define the concrete cover thickness from the sides of the column.

4

Define the distance from the edge of the column 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.

Distance between corner bars and side bars.

Distance between side bars.

Rotation

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

No rotation.

Transverse bars are perpendicular to the longer side of the column.

Rotation angle is 90 degrees.

Transverse bars are parallel to the longer side of the column.

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.

Bending radius

Define the bending radius of the top or bottom 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 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.

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