U.S. Base plate (1047)

U.S. Base plate (1047) creates a base plate at the selected point on a column.

Objects created

Base plate
Stiffeners (can only be added if the column has a W, I, or a TS profile)
Shim plates (optional)
Leveling plate (optional)
Shear key (optional)
Extra plates connecting the anchor rods
Anchor rods
Bolts
Welds
Additional component (optional)

Use for


Situation	Description
	Column base plate with a grout hole.
	Column base plate with a grout hole and a shear key.
	Column base plate with a grout hole, a shear key and stiffeners.
	Offset column base plate with a shear key and a grout hole.
	Column base plate with holes and chamfer.

Before you start

Create a column.

Selection order

Select the main part (column).
Pick a position.

The detail is created automatically.

Part identification key


	Part
1	Base plate
2	Stiffeners 1, 2, 4, 5
3	Stiffeners 3, 6, 7, 8

Picture tab

Use the Picture tab to control stiffener chamfering, base plate chamfers, and the location and size of the grout hole.

Stiffener chamfering


	Description
1	Top chamfer width for stiffeners 1, 2, 4, 5.
2	Top chamfer height for stiffeners 1, 2, 4, 5.
3	Bottom chamfer height for stiffeners 1, 2, 4, 5
4	Bottom chamfer width for stiffeners 1, 2, 4, 5.
5	Top chamfer width for stiffeners 3, 6, 7, 8.
6	Top chamfer height for stiffeners 3, 6, 7, 8.
7	Bottom chamfer height for stiffeners 3, 6, 7, 8.
8	Bottom chamfer width for stiffeners 3, 6, 7, 8,
9	Weld gap.
10	Select the chamfer type.

Base plate chamfering


	Description
1	Width of base plate chamfer 1.
2	Height of base plate chamfer 1.
3	Height of base plate chamfer 2.
4	Width of base plate chamfer 2.
5	Width of base plate chamfer 3.
6	Height of base plate chamfer 3.
7	Height of base plate chamfer 4.
8	Width of base plate chamfer 4.
9	Grout hole horizontal distance from the column center.
10	Grout hole vertical distance from the column center.
11	Diameter of the grout hole.

Parts tab

Use the Parts tab to control the dimensions of the base plate, stiffeners, leveling plate, and shim plates.

Plate


Option	Description	Default
Plate	Base plate thickness, width and height. You can add a comment about the part.	Thickness = `20 mm` Width depends on the largest cross-sectional dimension of the column. Height depends on the largest cross-sectional dimension of the column.
Stiffeners 1,2,4,5	Stiffener 1, 2, 4, 5 thickness, width and height.	Thickness depends on the column flange thickness. Width depends on the distance between the edge of the plate and the edge of the column. Height = `1.75*width`
Stiffeners 3,6,7,8	Stiffener 3, 6, 7, 8 thickness, width and height.	Thickness depends on the column flange thickness. Width depends on the distance between the edge of the plate and the edge of the column. Height = `1.75*width`
Key profile	Shear key profile by selecting it from the profile catalog.
Leveling plate	Leveling plate thickness, width, and height. You can add a comment about the part.
Fitting plate	Shim plate thickness, width and height. Define up to three different shim plates.
Number of fitting pl.	Number of shim plates for each thickness.	`1`
Leveling plate hole diameter	Leveling plate hole diameter.
Key profile welded to	Define to which plate the shear key is welded.


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.
Finish	Describes how the part surface has been treated.

Bolt edge distances in shim plate

Define the bolt edge distances for shim plates. When these fields are empty, shim plates are of the same size as the base plate.


	Description	Default
1	Horizontal bolt edge distance in the shim plate.	`30 mm`
2	Vertical bolt edge distance in the shim plate.	`30 mm`

Shim plate shape


Option	Description
	Default Holes are based on the bolt group of the detail. AutoDefaults can change this option.
	Holes are based on the bolt group of the detail.
	Finger shim plate with horizontal slots. The plate can be installed from the right or the left side of the detail.
	Finger shim plate with vertical slots. The plate can be installed from the top of the detail.

Tolerance

Define the tolerance for the slots in finger shim plates. The width of the slot is the bolt diameter + the tolerance.

Base plate mounting grooves


Option	Description
	Default Mounting grooves are not created. AutoDefaults can change this option.
	Mounting grooves are not created.
	Mounting grooves are created horizontally.
	Mounting grooves are created vertically for the first and last row of the bolts. For other rows of bolts, the mounting grooves are created horizontally.

Tolerance for mounting grooves

Define the tolerance for the mounting grooves in the base plates. The width of the groove is the bolt diameter + the tolerance. If you do not enter a value, the bolt tolerance value is used.

Parameters tab

Use the Parameters tab to control the plate properties and option, shear key offset, rotation and length, bolt properties and rotation of the base plate.

Plate properties


Option	Description
Square cut corners (1-4)	Cuts made on the corners of the base plate. If you enter a number corresponding to one of the corners of the base plate, the corner has a square cut instead of a diagonal chamfer. You can enter the numbers for one or all the corners.
Cut cast plate	Define whether base plate corner cuts are applied to the cast plate. Select Yes to apply the cuts.

Bolt properties


Option	Description
Eliminate bolt numbers	Define which bolts are deleted from the bolt group. Enter the bolt numbers of the bolts to be deleted and separate the numbers with a space. Bolt numbers run from left to right and from top to down. If there are more than 10 bolts, enclose the bolt numbers in quotes (for example, to delete bolt numbers 13 and 15, enter `"13" "15"`).
Eliminate external bolts	Define whether external bolts are deleted.

Base plate with holes or bolts


Option	Description
	Default Holes are created. AutoDefaults can change this option.
	Holes are created.
	Bolts are created.

Base plate offset


	Description
1	Base plate horizontal offset from the column center. Enter a negative value to move the base plate in the opposite direction
2	Base plate vertical offset from the column center. Enter a negative value to move the base plate in the opposite direction

Shear key offset and rotation


	Description
1	Shear key vertical offset. Enter a negative value to move the shear key in the opposite direction.
2	Shear key rotation angle (in degrees). Positive angle rotates the shear key in a counter-clockwise direction and negative angle in a clockwise direction.
3	Shear key horizontal offset. Enter a negative value to move the shear key in the opposite direction.

Shear key length


	Description
1	Shear key length to attach the shear key to the base plate. To attach a shear key to the base plate, define the shear key length and the key profile on the Parts tab.

Bolt group rotation

You can define the bolt group rotation around its center. To rotate the bolt group, enter the rotation angle (in degrees).

Positive angle rotates the bolts in a counter-clockwise direction and negative angle in a clockwise direction.


	Description
1	Bolt group rotation angle.

Using additional components

You can use additional system or custom components to modify the column end or the base plate. For example, you can create special backing plates, weld preparations, and weld access holes for the column end.

If you use additional system or custom components, you need to manage the column end or the base plate properties in the additional component in question. When using several components, there may be multiple welds and cuts.


Option	Description
Component	Define a system or a custom component by selecting it from the component catalog.
Attributes	Enter the name of the attribute file for the selected component.
Input	Define to which parts the selected component is applied. Default is same as Base + Column. Column sets the column as the main part. Use this option for details. Column + Base sets the column as the main part and the base plate as the secondary part. Base + Column sets the base plate as the main part and the column as the secondary part. Base sets the base plate as the main part.

Bolts tab

Use the Bolts tab to control the bolt properties.

Bolt group dimensions


	Description
1	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.
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.
6	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.
7	Dimension for vertical bolt group position.

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`

Cut length

Defines the depth at which Tekla Structures searches for the sections of the bolted parts. You can determine whether the bolt will go through one flange or two.

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

Stiffeners tab

Use the Stiffeners tab to control stiffener positions and offsets.

Stiffener positions (1-8)


Option	Description
Stiffener Positions (1-8)	Placement of the stiffeners. Only the stiffeners whose numbers are entered in the field are attached to the column.

Stiffener offset

Stiffener offset allows the stiffeners to be moved. Enter a negative value to move the stiffener in the opposite direction.


	Description
1	Stiffener 1 offset.
2	Stiffener 2 offset.
3	Stiffener 3 offset.
4	Stiffener 4 offset.
5	Stiffener 5 offset.
6	Stiffener 6 offset.
7	Stiffener 7 offset.
8	Stiffener 8 offset.

Anchor rods tab

Use the Anchor rods tab to control the creation of different types of anchor rods.

Anchor rod dimensions


Option	Description
Rod profile	Anchor rod profile. You can add a comment about the part.
Nut profile	Nut profile.
Washer profile	Washer profile.
Plate washer	Plate washer thickness, width and height.
Cast plate	Cast plate thickness, width and height.
Grout	Grout thickness. Grouting helps you to model columns to the top of concrete parts and place the base plate correctly. It also makes it easier to dimension the detail in GA drawings. By default, no grouting is created. Select whether the grouting is created above or below the detail creation point. This also affects the shim plates.

Anchor rod part properties


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.
Finish	Describes how the part surface has been treated.

Base plate with

Select whether to create the base plate with bolts, anchor rods, or a custom component.

By default, the base plate is created with Bolts.

Anchor rod dimensions


	Description	Default
1	Size or the length of the nut.	`anchor rod diameter`
2	Size or the thickness of the washer.	`half of nut size`
3	Length of the anchor rod.	`500 mm`
4	Length of the anchor rod above the base plate.	`50 mm`
5	Distance between the cast plate and the base plate.	`60 mm`
6	Length of the upper thread.	`0 mm`

Anchor rod types


Option	Description
	Default Type 1 AutoDefaults can change this option.
	Type 1
	a Radius of the hook b Width of the hook	a = `2*anchor bar diameter` b = `1/5 of anchor bar length`
	a Radius of the hook b Width of the hook c Height of the hook	c = `same as width of the hook`
	d Length of the anchor rod below the extra plate e Length of the lower thread	d = `2nut size` e = `4nut size plus thickness of extra plate`

Hook direction


Option	Description
	Default Type 1 AutoDefaults can change this option.
	Type 1
	Type 2
	Type 3
	Type 4

Bolting direction

Note:

You can define the bolting direction if you have created the base plate with bolts.


Option	Description
	Default Bolting direction 1 AutoDefaults can change this option.
	Bolting direction 1
	Bolting direction 2

Cast plate hole tolerance


Option	Description	Default
Cast plate holes tolerance	Tolerance of the cast plate holes.	`same as bolt tolerance`

Washer hole tolerance


Field	Description
Create hole in washer	By default, a hole is not created in the washer. Tolerance of the washer hole.

Create assembly from all anchors

Define whether anchors are included in an anchor rod assembly. You can also include leveling plates into the assembly.

Create


	Description
1	Create the nut profile. You can select to create two nuts at the top of the anchor rods.
2	Create the washer profile.
3	Create the washer plate.

Anchor rod assembly

Define which parts of the anchor rod are included in the anchor rod assembly.

You can weld the washer plates above and below the base plate.

Extra plates tab

Use the Extra plates tab to control the placement, rotation, and type of the profiles (extra profile 1) created at the bottom of each anchor bar and the profiles (extra profile 2) that connect rows of anchor bars.

Part dimensions


Option	Description	Default
Extra profile 1	Define the first extra profile by selecting it from the profile catalog.	`PL10*100`
Extra profile 2	Define the second extra profile by selecting it from the profile catalog.	`PL10*100`

Part properties


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.

Edge distance of extra profile 1


	Description	Default
1	Edge distance of extra profile 1.	`50 mm`

Type and direction of extra profile 1


Option	Description
	Default Type 1 AutoDefaults can change this option.
	Type 1
	Type 2
	Type 3

Edge distance of extra profile 2


	Description	Default
1	Distance of extra profile 2 from the axis of the anchor bar.	`Half of the nut size or anchor bar diameter`

Extra profile 2 type


Option	Description
	Default Type 1 AutoDefaults can change this option.
	Type 1
	Type 2
	Type 3
	Type 4
	Type 5
	Type 6

Length of extra profile 2


	Description	Default
1	Length of extra profile 2 from the axis of the anchor bar.	`50 mm`

Direction of extra profile2


Option	Description
	Default Type 1 AutoDefaults can change this option.
	Type 1
	Type 2

Extra profile 1 properties


Option	Description	Default
Hole tolerance	Hole tolerance of extra profile 1.	`Same as bolt tolerance`
Circular profile height	Enter the height of a circular extra profile 1.
Profile rotation	Profile rotation of extra profile 1.	`Front`

Extra profile 2 rotation


Option	Description	Default
Extra profile 2 rotation	Profile rotation of extra profile 2.	`Front`

General tab

Click the link below to find out more:

General tab

Analysis tab

Click the link below to find out more:

Analysis tab

Welds

Click the link below to find out more:

Create welds