Portal bracing (105)

Tekla Structures
2024
Tekla Structures

Portal bracing (105)

Portal bracing (105) connects up to 3 hollow braces to a beam or column using a gusset plate and tees.

Objects created

  • Gusset plate

  • Tees

  • Bolts

  • Welds

Use for

Situation Description

Brace profile: Tube

Gusset plate is welded to the beam. Braces are bolted to the gusset plate using tees.

Brace profile: RHS

Gusset plate is welded to the column. Braces are bolted to the gusset plate using tees.

Limitations

The braces must be in the same plane.

Before you start

Create a beam, and up to three braces all in the same plane.

Selection order

  1. Select the main part (beam or column).

  2. Select the secondary part (first brace).

  3. Select the second secondary part (second brace).

  4. Select the subsequent secondary part (third brace).

  5. Click the middle mouse button to create the component.

Part identification key

Description

1

Gusset plate

2

Tee

Picture tab

Use the Picture tab to define the tee dimension from the gusset plate edge.

Description

1

Define the tee edge dimension.

Parts tab

Use the Parts tab to define the properties of the gusset plate, and the tees at the ends of the braces. You can define the tees separately for each brace.

Parts

Option Description

Gusset

Thickness, width and height of the gusset plate.

Tee flange

To have Tekla Structures use two plates to create the tee, leave the Tee profile empty. You must enter the thickness, width, and height dimensions for the tee flange and web instead.

Define the thickness, width and height of the tee flange.

Tee web

To have Tekla Structures use two plates to create the tee, leave the Tee profile empty. You must enter the thickness, width, and height dimensions for the tee flange and web instead.

Define the thickness, width and height of the tee web.

Tee profile

Select the tee profile from the profile catalog.

You can use a T profile or an I profile.

If you use an I profile, the component creates the tee by cutting the I profile. You must specify where to cut the I profile, using the tee depth option on the Parameters tab.

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.

Class

Part class number.

Parameters tab

Use the Parameters tab to define the tee dimensions, clearances, gusset plate position and chamfers.

Option Description

Min. cut angle (0-90 deg)

Define the minimum cut angle.

Define welds for each Tee

Select whether to use welds for each tee.

Define bolts for each Tee

Select whether to use bolts for each tee.

Gusset position

Select the gusset position on the brace.

Tee position

Select the tee position on the gusset.

Gusset chamfer

Option Description

Default

No chamfer

AutoDefaults can change this option.

No chamfer

Chamfers are created.

Tee dimensions

Define the tee dimensions for each brace.

Description

1

Tee length

2

Tee depth

Bolt group alignment

Select whether bolt groups are aligned.

Gusset position on the main part

Option Description

Default

Gusset is positioned according to the defined distances.

AutoDefaults can change this option.

Gusset is positioned according to the defined distances.

Gusset is centered to the center of the bolt group.

Gusset is centered to the center of the connection origin.

Bolts 1 / Bolts 2 / Bolts 3 tabs

Use the Bolts 1, Bolts 2 and Bolts 3 tabs to control the bolts that connect the first, the second, and the third brace to the gusset plate.

Bolt group dimensions

Description

1

Plate edge distance to the main part web.

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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