Turnbuckle bracing (S3)

Tekla Structures
2021
Tekla Structures

Turnbuckle bracing (S3)

Turnbuckle bracing (S3) creates a turnbuckle assembly, rods, and end connections.

Objects created

  • Turnbuckle

  • Rod

  • Fastener plate

  • Gusset plate

  • Bolts

Use for

Situation Description

Turnbuckle connection

Selection order

  1. Pick the first point.

  2. Pick the second point.

  3. Select the first part.

  4. Select the second part.

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

Part identification key

Description

1

Turnbuckle

2

Rod

3

Fastener plate/Gusset plate

Picture tab

Use the Picture tab to define the turnbuckle dimensions.

Dimensions

Description Default

1

Offset between the first picked position and the actual generation point.

0 mm

2

Distance from the first bolt to the center line of the first part.

First part collision point + 100 mm

3

Distance from the first bolt to the end of the first rod. Used with battledores or clevises.

100 mm

4

Fixed length of the rod. The length of the second rod is automatically calculated.

400 mm

5

Distance from the first bolt to the end of the second rod. Used with battledores or clevises.

100 mm

6

Distance from the first bolt to the center line of the second part.

Second part collision point + 100 mm

7

Offset between the first picked position and the actual generation point.

0 mm

Rod depth offset

Define the fastener/gusset plate offset from the part center line. By default, the fastener plate/gusset plate is located in line with the part center line.

Turnbuckle tab

Use the Turnbuckle tab to define the turnbuckle dimensions, thread type and cuts, and whether the turnbuckle is created as an assembly or as single parts.

Parts

Option Description

Rod

Select the rod profile from the profile catalog.

Turnbuckle

Select whether to create a turnbuckle.

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.

Dimensions

Description Default

1

Outer diameter of the turnbuckle

Diameter of the rod + 2 x turnbuckle thickness

2

Length of the turnbuckle

50 mm

3

Length of the turnbuckle opening

Length of the turnbuckle – 20 mm

4

Width of the turnbuckle opening

Rod thickness – 1

5

Length of the thread cut

100 mm

6

Gap between the rods

100 mm

Thread type

Define the direction of the threads at the turnbuckle.

Option Description

RH – LH (right hand – left hand)

Tekla Structures stores RH as a user-defined attribute to the first rod and LH as a user-defined attribute to the second rod.

LH – RH (left hand – right hand)

Tekla Structures stores LH as a user-defined attribute to the first rod and RH as a user-defined attribute to the second rod.

Create thread cuts

Option Description

Threads are not cut.

Threads are cut.

Assembly / single part turnbuckle

Option Description

Assembly

Single parts

Connection tab

Use the Connection tab to define the plate properties and the connection type.

Parts

Option Description

Fastener plate

Thickness, width and height of the fastener plate.

Gusset plate

Thickness, width and height of the gusset plate.

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.

Connection type

Select the connection type: Battledore, Clevis, Bolted gusset, or Tube gusset.

Option Description Default

Battledore side

Select whether the battledore and gusset are generated in front of or behind the rod generation plane.

Front

Battledore dimensions

1 Distance from the bolt to the edge of the fastener plate.

2 Distance from the bolt to the gusset plate edge.

3 Clearance between the gusset corner and the rod.

1 60 mm

2 2.5 x bolt diameter

3 (Fastener plate width – Rod diameter) / 2

Clevis pin size

Clevis pin size is the value stored as a free attribute to the clevis. Used only with clevis.

Bolt diameter + 4 mm

Connection setting

User-defined attribute file for the bolted gusset or tube gusset connection.

Bolts tab

Use the Bolts tab to define the bolt properties.

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

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.

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