Cranked beam (41)

Tekla Structures
2021
Tekla Structures

Cranked beam (41)

Cranked beam (41) connects two beam ends. The beam ends are fitted to an angle which is an average of the beam end angles. A plate can be created between the connected parts.

Objects created

  • End plates

  • Haunch plates

  • Stiffeners

  • Bolts

  • Welds

Use for

Situation Description

Beam ends are fitted.

Beam ends are fitted. Tubular profiles are used.

Selection order

  1. Select the main part (beam).

  2. Select the secondary part (beam).

    The connection is created automatically when the secondary part is selected.

Part identification key

Description

1

End plate

2

Haunch plate

3

Stiffener

Picture tab

Use the Picture tab to define the geometry of the connection.

Dimensions

Description

1

Define the gap between the parts.

The gap is created on both sides of the end plate.

2

Define the end plate edge distance from the top of the secondary part.

3

Define the end plate edge distance from the bottom of the main part.

4

Define the end plate edge distance to the left and right edge of the secondary part.

Parts tab

Use the Parts tab to define the properties of the end plates, haunch plates, and stiffeners.

Parts

Part Description

Plate

Thickness, width and height of the end plate.

Sec plate

Thickness, width and height of the secondary end plate.

Haunch prof

Select the haunch profile from the profile catalog.

Vert haunch pl

Thickness of the vertical haunch plate.

Horiz haunch pl

Thickness and width of the horizontal haunch plate.

Haunch prof 2

Select the second haunch plate profile from the profile catalog.

Vert haunch pl 2

Thickness of the second vertical haunch plate.

Horiz haunch pl 2

Thickness and width of the second horizontal haunch plate.

Column stiffener

Thickness, width and height of the column stiffener.

Beam stiffener

Thickness, width and height of the column stiffener.

Option

Description

Default

Pos_No

Prefix and start number for the part position number.

Some components have a second row of fields where you can enter the assembly position number.

The default part start number is defined in the Components settings in File menu > Settings > Options.

Material

Material grade.

The default material is defined in the Part material box in the Components settings in File menu > Settings > Options.

Name

Name that is shown in drawings and reports.

Finish

Describes how the part surface has been treated.

Parameters tab

Use the Parameters tab to define the plate positions and dimensions.

Plate positions and dimensions

Description

1

Gap between the end plates.

You can define the gap either as a distance or as an angle.

2

Select whether the gap is defined as a distance or as an angle (degrees).

By default, the gap is created as a distance.

3

Haunch plate height

4

Gap between the stiffeners and beam flanges

5

Stiffener edge distance to the haunch edge

6

Haunch plate length

7

Haunch plate chamfer size

Parallel haunch end cuts

If you have selected the haunch profile from the profile catalog, you can select that the haunch ends are cut parallel.

Chamfer dimensions

1

Horizontal chamfer dimension

2

Vertical chamfer dimension

Chamfer type

Option

Description

Default

Line chamfer

AutoDefaults can change this option.

No chamfer

Line chamfer

Convex arc chamfer

Concave arc chamfer

Bolts tab

Use the Bolts tab to define the bolt group dimensions and bolt properties.

Bolt group dimensions

Description

1

Number of bolts.

2

Bolt spacing.

Use a space to separate bolt spacing values. Enter a value for each space between bolts. For example, if there are 3 bolts, enter 2 values.

3

Dimension for vertical bolt group position.

4

Select how to measure the dimensions for vertical bolt group position.

  • Top: From the upper edge of the secondary part to the uppermost bolt.

  • Middle: From the center line of the bolts to the center line of the secondary part.

  • Below: From the lower edge of the secondary part to the lowest bolt.

5

Dimension for horizontal bolt group position.

6

Select how to measure the dimensions for horizontal bolt group position.

  • Left: From the left edge of the secondary part to the leftmost bolt.

  • Middle: From the center line of the secondary part to the center line of the bolts.

  • Right: From the right edge of the secondary part to the rightmost bolt.

Bolt basic properties

Option

Description

Default

Bolt size

Bolt diameter.

Available sizes are defined in the bolt assembly catalog.

Bolt standard

Bolt standard to be used inside the component.

Available standards are defined in the bolt assembly catalog.

Tolerance

Gap between the bolt and the hole.

Thread in mat

Defines whether the thread may be within the bolted parts when bolts are used with a shaft.

This has no effect when full-threaded bolts are used.

Yes

Site/Workshop

Location where the bolts should be attached.

Site

Slotted holes

You can define slotted, oversized, or tapped holes.

Option

Description

Default

1

Vertical dimension of slotted hole.

0, which results in a round hole.

2

Horizontal dimension of slotted hole, or allowance for oversized holes.

0, which results in a round hole.

Hole type

Slotted creates slotted holes.

Oversized creates oversized or tapped holes.

No hole does not create holes.

Rotate Slots

When the hole type is Slotted, this option rotates the slotted holes.

Slots in

Part(s) in which slotted holes are created. The options depend on the component in question.

Bolt assembly

The selected check boxes define which component objects (bolt, washers, and nuts) are used in the bolt assembly.

If you want to create a hole only, clear all the check boxes.

To modify the bolt assembly in an existing component, select the Effect in modify check box and click Modify.

Bolt length increase

Define how much the bolt length is increased. Use this option when, for example, painting requires the bolt length to be increased.

Staggering of bolts

Option

Description

Default

Not staggered

AutoDefaults can change this option.

Not staggered

Staggered type 1

Staggered type 2

Staggered type 3

Staggered type 4

Chamfers tab

Use the Chamfers tab to define the chamfer types and dimensions for the haunch plate chamfers.

Chamfers

You can define each chamfer separately.

Holes tab

Use the Holes tab to define the holes created in the end plates.

Hole dimensions

You can define the holes separately for the main part end plate and the secondary part end plate. The main part end plate values are used as default values for the secondary part end plate.

Option Description

Define the hole group dimensions in the rafter.

Define the hole group dimensions in the haunch.

Option Description

Bolt standard

Select the bolt standard.

Bolt type

Select the bolt type to define the location where the bolts should be attached.

Read data from

You can select to use the sinkholes.dat definition file to specify the default values for horizontal and vertical offsets, and the diameters for upper and lower holes.

The file is searched in the following order: Environment common system steel folder (..\Environments\common\system\Steel), model folder, XS_FIRM, XS_PROJECT and XS_SYSTEM folder.

You can also select to define the holes in the component dialog box.

General tab

Click the link below to find out more:

General tab

Design tab

Click the link below to find out more:

Design tab

Analysis tab

Click the link below to find out more:

Analysis tab

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