U.S. Seat connection 4 (75)
U.S. Seat connection 4 (75) connects two beams to a column. The seat is always formed along a line that is parallel to the face of the column nearest to the first beam selected. You can use the connection with rotated and skewed beams and columns. The seat can be bolted or welded to the beams and the column.
Objects created
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Seat profile
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Stiffeners
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Bolts
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Welds
Use for
Option | Description |
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Beams connected to a column |
Selection order
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Select the main part (column).
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Select the first secondary part (beam).
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Select the second secondary part (beam).
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Click the middle mouse button to create the connection.
Part identification key
Description | |
---|---|
1 |
Seat profile |
Picture tab
Use the Picture tab to define the connection dimensions.
Dimensions
Description | |
---|---|
1 |
Seat profile offset from the column |
2 |
Seat profile vertical offset from the beams |
3 |
Beam offset from the connection origin |
Description | |
---|---|
1 |
Horizontal seat profile offset |
2 |
Seat profile length |
Parts tab
Use the Parts tab to define the part properties.
Parts
Option | Description | Default |
---|---|---|
Stiffeners |
Thickness, width, and height of the stiffeners Stiffeners can only be placed in the connection if an angle profile is used for the seat. |
The default values for the height and width are based on the seat profile dimensions. The default stiffener thickness is ¼” or 6 mm depending on whether metric or imperial units are used in the model. |
Seat profile |
Select the profile from the profile catalog. You can select any profile from the 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 . |
Material |
Material grade. |
The default material is defined in the Part material box in the Components settings in . |
Name |
Name that is shown in drawings and reports. |
Parameters tab
Use the Parameters tab to define the seat fitting, position and orientation, and the stiffener position, shape, and chamfering.
Stiffener positions
Option | Description |
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Default Stiffeners are not placed on the seat. AutoDefaults can change this option. |
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Stiffeners are not placed on the seat. |
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Stiffener is placed on the right side. |
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Stiffener is placed in the middle. |
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Stiffener is placed on the left side. |
Stiffener shape
Option | Description |
---|---|
Default Rectangular stiffener AutoDefaults can change this option. |
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Rectangular stiffener |
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Triangular stiffener |
Stiffener offsets
Description | |
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1 |
Offset of the end stiffeners from the seat ends |
2 |
Offset of the middle stiffener from the seat center line |
Stiffener chamfer dimensions
Description | |
---|---|
1 |
Horizontal chamfer dimension |
2 |
Vertical chamfer dimension |
Chamfer type
Option | Description |
---|---|
Default Line chamfer AutoDefaults can change this option. |
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Line chamfer |
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Convex chamfer |
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Concave chamfer |
Seat orientation
Define the seat orientation. For example, if the seat is an angle with uneven legs, the default option for non-vertically skewed beams places the longest leg of the angle parallel with the beam, and the shortest leg parallel with the column.
Option | Description |
---|---|
Default Longer leg is horizontal. AutoDefaults can change this option. |
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Longer leg is horizontal. |
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Longer leg is vertical. |
Beam fitting
Option | Description |
---|---|
Default Beam is not fitted to the column. AutoDefaults can change this option. |
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Beam is not fitted to the column. |
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Beam is fitted to the column. |
Seat position
Option | Description |
---|---|
Default Seat is placed at the bottom of the beam. AutoDefaults can change this option. |
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Seat is placed at the bottom of the beam. |
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Seat is placed at the top of the beam. |
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Seat is placed both at the top and at the bottom of the beam. |
Seat to beam
Option | Description |
---|---|
Default Seat is bolted to the beam. AutoDefaults can change this option. |
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Seat is bolted to the beam. |
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Seat is welded to the beam. |
Seat to column
Option | Description |
---|---|
Default Seat is welded to the column. AutoDefaults can change this option. |
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Seat is welded to the column. |
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Seat is bolted to the column. |
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 |
Dimension for horizontal bolt group position. |
3 |
Bolt edge distance. Edge distance is the distance from the center of a bolt to the edge of the part. |
4 |
Number of bolts. |
5 |
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.
General tab
Click the link below to find out more:
Design tab
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Analysis tab
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Welds
Click the link below to find out more: