Apex haunch (106)

Tekla Structures
Modified: 9 Oct 2023
2024
Tekla Structures

Apex haunch (106)

Apex haunch (106) connects two rafters at the apex of a portal frame. The component can also be used in other similar situations.

Objects created

  • End plates

  • Haunch plates

  • Bolts

  • Welds

Use for

Situation Description

Rafters connected with two end plates. Haunch plates are created.

Limitations

  • Both rafters must be I sections with the same profile.

  • The webs of the rafters must lie in the same vertical plane.

  • Haunch plates are created with a common design depth.

Selection order

  1. Select the main part.

  2. Select the secondary part.

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

Part identification key

Description

1

End plate

2

Haunch plate

Picture tab

Use the Picture tab to define the connection dimensions.

Dimensions

Description

1

End plate dimension above the intersection between the rafter top flanges

2

Haunch design depth

Vertical distance from the intersection between the main rafter center line and the vertical line between the end plates, to the intersection of the haunch plate bottom flanges on the same vertical line.

3

Horizontal dimension from the haunch plate edge to the vertical line between the end plates

4

Minimum end plate dimension below the intersection between the haunch flanges

The actual dimension may be greater to round up the length of the end plates.

Parts tab

Use the Parts tab to define the part properties.

Parts

Option Description

End plate

Thickness, width, and height of the end plate

Haunch, web

Thickness and width of the haunch

Haunch, flange

Thickness and width of the haunch

Haunch, profile

Select the profile from the profile catalog.

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 position of the end plates.

End plate position

Option Description

Default

End plates bisect the angle between the two rafters. The haunch plates are placed at the same angle as the end plates.

AutoDefaults can change this option.

End plates are placed vertically.

End plates bisect the angle between the two rafters.

Bolts tab

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

Bolt group dimensions

Description

1

Dimension for vertical bolt group position.

2

Bolt edge distance.

Edge distance is the distance from the center of a bolt to the edge of the part.

3

Number of bolts.

4

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.

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 holes.

No hole does not create holes.

Tapped creates tapped 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

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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