Rebar in beam (90)

Tekla Structures
2021
Tekla Structures

Rebar in beam (90)

Rebar in beam (90) adds reinforcement bars to concrete beams.

Parts created

Complete reinforcement structure: stirrups and perpendicular rebars are created in the concrete part.

Use for

Situation

More information

Rebars in concrete beam.

Rebars in a concrete column.

Do not use for

Use this component to add reinforcement bars to a concrete part.

Before you start

Before the component can be created, you need to create a concrete part first.

Primary bottom bars tab

Use the Primary bottom bars tab to define the properties of the lower reinforcing bars.

Properties

Option

Description

Grade

Defines the grade of the main bottom reinforcing bars. This field cooperates with the Size field.

Size

Defines the diameter of the main bottom reinforcing bars. Pressing the ... button right of the field will open the Select rebar dialog box.

In the dialog box you can select the grade and the accompanying diameter.

Note: Selecting a size will override the value in the Grade field.

Bend lengths left

Defines the length of the left end-extension.

Bend lengths right

Defines the length of the right end-extension.

End conditions left/right

Picklist to define the rebars’ end condition on the left and right side. The options are:

Picklist item

Example

Default

90 Degree

135 Degree

180

-180

-135

-90

-45

45

Bar not to create

Picklist to define which rebar should not be created. The options are:

Picklist Item

Example

_O_O_O_O_O_

_._O_O_O_._

_O_O_O_O_._

_._O_O_O_._

Creation method

This field defines the way the rebars are created. There are three options:

Option

Description

No rebars

No bottom rebars are created.

Number of bars

A fixed numer of bars is created. The spacing between the bars is automatically calculated.

By spacing

A accompanying field becomes active. The entered value is the fixed spacing for the rebars. The number of rebars is calculated automatically.

Positioning and distances

In the right upper side of this tab a picture and some picklists are displayed. These fields and lists are to define the position and de rebar distances.

The distance fields are used for defining the size of the rebars. The picklists are for positioning. Below some examples for the positioning rebars on the left side:

Picklist item

Description

Example

The part edge is normative for positioning the rebar.

The concrete parts’ reference point is normative for positioning the rebar.

The picked position is normative.

The edge of the top part cut is normative for positioning the rebar.

The edge of the bottom part cut is normative for positioning the rebar.

The centerline of the concrete part is normative for positioning the rebar.

Shape and pattern

The picklists and input fields are used to define the rebar shape, rebar pattern and rebar distribution.

In the left bottom side of the tab, some picklists are available for defining the shape and distribution of the bottom rebars.

A - Shape of rebar

These picklists define the common shape of the rebars on both ends of the concrete part. For some shapes distances can be entered (B).

B - Distance fields

These distance fields only apply for two rebar shapes (A).

C - Rebar pattern

Picklist for defining the rebar pattern. The picklist contains six options:

D - Consider part cuts in longitudinal direction

This picklist defines if part cuts in the concrete part should be taken into account when positioning the rebars.

Picklist item

Example

E - Consider part cuts in vertical direction

These picklists contain options for defining if rebar shape should consider the partcuts in vertical direction. For both top side and bottom side the placing can be defined. Examples:

Picklist item

Example

Side left tab

Use the Side left tab to create and define the properties of the horizontal rebars on the left side.

The rebars which can be created are placed in longitudinal direction (just as the Primary bars), but now the bends are created horizontally. The options on this tab (defining rebar shape, dimensions, number of bars, and rebar distribution) are similar to the options on the Primary bottom bars tab.

Examples of rebars which can be created with this tab:

Side right tab

Use the Side right tab to create and define the properties of the horizontal rebars on the right side.

Similar to the Side left tab, but now the reference is the parts’ right side.

Stirrups tab

Use the Stirrups tab to define the dimensions of the stirrups in first section of the concrete part.

In the picture below, the options are grouped.

Section A - Stirrup dimensions

Option

Description

Grade

Defines the grade of the main bottom reinforcing bars. This field cooperates with the Size field.

Size

Defines the diameter of the main bottom reinforcing bars. Pressing the ... button right of the field will open the Select rebar dialog box.

In the dialog box you can select the grade and the accompanying diameter.

Note: Selecting a size will override the value in the Grade field.

Bend lengths left

Defines the length of the left end-extension.

Bend lengths right

Defines the length of the right end-extension.

Section B - Stirrup dimensions

One input field is available for defining a fixed distance from concrete parts’ bottom side to bottom side of stirrup.

Note: This offset is normative.

The input fields in the bottom side of this section are for defining the offset, width and height of the stirrups.

Section C - Stirrup shape

In this section the general shape of the stirrups is defined.

First there is the Create stirrups option. This picklist has three options:

  • No - No stirrups are created

  • As one group - Stirrups are created as one group

  • As separate group - Stirrups are created as separate groups

The general shape of the stirrup can be defined. You can choose a shape from the picklist:

Picklist item

Description

Example

No stirrups are created

U-shape stirrups

C-shape inside

Closed box

Closed box overlap

Divided stirrup

Divided stirrups overlap

Double U-shape

Single U-shape left

Single U-shape right

Stirrup rotation

The rotation of the stirrups can be set with below picklist. The picklist contains four options: each option will rotate the stirrup 90 degrees counterclockwise.

Stirrup spacing tab

Use the Stirrup spacing tab to define the distribution of the stirrups along the concrete part.

You can define six zones for the distribution. For each zone you can set a number of stirrups. The distance between the stirrups can be defined in two ways:

  • Fixed spacing between each stirrup.

  • Distance between outer stirrups. (Spacing is then calculated from this distance divided by the number of stirrups.)

Examples:

Picklist item

Example

Stirrups 2 tab

Use the Stirrups 2 tab to define a second group of stirrups.

This tab can be used if the shape of the concrete part is not uniform. For example, if a part cut is applied, you may need different stirrups on that area.

Stirrups 2

Stirrups

Stirrups 2 spacing tab

Use the Stirrups 2 spacing tab to define the spacing of the second group of stirrups.

Stirrups 3 tab

Use the Stirrups 3 tab to define a third group of stirrups.

You may need this tab in case the concrete part contains multiple part cuts. For each area, the properties of the stirrups can be configured.

Example:

Stirrups 2

Stirrups

Stirrups 3

Stirrups 3 spacing tab

Use the Stirrups 3 spacing tab to define the spacing of the third group of stirrups.

Advanced tab

Use the Advanced tab to define the naming and numbering properties of rebars and stirrups.

The following information can be added:

  • Comment

  • Name

  • Rebar profile

    Default Name

    Main bottom rebars

    RB

    Main top rebars

    RB

    Side left

    RB

    Side right

    RB

    Stirrups

    STIRRUP

    Stirrups2

    STIRRUP

    Stirrups3

    STIRRUP

  • Class

    If the Class fields are left blank, then the following default classes will be used:

    Rebar profile

    Default Class

    Main bottom rebars

    201

    Main top bars

    202

    Side left

    203

    Side right

    204

    Stirrups

    301

    Stirrups2

    302

    Stirrups3

    303

  • Series

    If this field is left blank, the prefix will be empty for all rebar profiles.

  • Start number

    If this field is left blank, Tekla Structures will use '1' as default start number for all rebar profiles.

Configuration tab

Use the Configuration tab to define the bending radius and rotation.

Bending radius

The bending radius can be set separately for the main reinforcing bars and the stirrups. Furthermore the radius can be set separately for the main bends and the hook-bends.

The bending radius can be determined in three ways:

Picklist item

Description

rebar_database.inp

The bending radius is determined from a configuration file rebar_database.inp. This file is located in the profil folder.

Relative to diameter

For this option the radius is calculated by multiplying the reinforcing bar diameter with the entered coefficient.

Bending radius

Use this option to use a fixed value for the bending radius.

Rotation

The picklist determines the orientation of the complete rebar structure in the concrete part. The picklist contains four options, each item representents a 90 degree rotation.

Was this helpful?
上一步
下一步