Concrete stairs (65)

Tekla Structures
2021
Tekla Structures

Concrete stairs (65)

Concrete stairs (65) creates precast stairs with optional landings, ridges, stringers, and anti-skid and kick plate profiles. It contains five different step shapes and options to create round or chamfered step edges.

Objects created

  • Stairs

  • Landings

  • Ridges

  • Stringers

  • Anti-skid

  • Kick plate

Use for

Situation

Description

Staircase with

  • square step shape

  • stringers on both sides

  • top and bottom landings

Staircase with

  • chamfered step corners

  • ridges on both sides

Staircase with

  • rounded step corners

  • anti-skid profile

  • bottom landing

Staircase with

  • square step shape

  • rounded step corners

  • ridges on both sides

  • anti-skid and kick plate profiles

Selection order

Selection order depends on the selected Creation method option on the Stairs tab.

When Creation method is set to Default:

  1. Pick the first point to indicate the start point of stairs.

  2. Pick the second point to indicate the direction of stairs.

    The stairs are created automatically.

Part identification key

Part

1

Landings

2

Stringers

3

Ridges

4

Kick plates

5

Steps

6

Anti-skids

Stairs tab

Use the Stairs tab to define how the stairs are created and what are the dimensions of the stairs.

Creation method

Option

Description

Creation method

Select the creation method of the stairs. Creation method defines how many and which points you need to pick when you create the stairs.

  • Default

    Number of steps is calculated automatically using the vertical distance between the two input points.

  • One point - N & L & H: define N, L, and H (number, length, and height of the steps).

  • Two points - N & L: define N and L.

    Height of the steps is calculated automatically using the vertical distance between the two input points.

  • Two points - N & H: define N and H.

    Length of the steps is calculated automatically using the horizontal distance between the two input points.

  • Two points - L & H: define L and H.

    Number of steps is calculated automatically using the vertical distance between the two input points.

  • Two points - N: define N.

    Height and length of steps is calculated automatically using the horizontal and vertical distance between the two input points. You can define the length of the top step.

No of steps, N

Define the number of steps, if the Two points - L & H option is not selected.

Position

Define the horizontal position of the staircase, relative to the line joining the picked points.

Distance

Enter a distance to move the stairs in the horizontal direction from the line joining the picked points. The selected Position option has an effect on this dimension.

Rotation

Define the angle between the line joining the steps and the line joining the selected points.

Cast unit type

Select the cast unit type:

  • Precast

  • Cast in place

Stair dimensions

Description

1

2

Height of the step.

Length of the step.

3

4

Length of the top step.

Height of the top step.

5

Width of the top corbel.

6

Slope from the corbel to the underside of the stairs.

7

Thickness of the slab.

8

Chamfering for the underside of stairs.

9

10

Chamfer or radius values.

11

Height of the bottom step.

12

Height of the stair foot.

13

Chamfering for the bottom of stairs.

14

Slope from the foot nose to the foot base.

15

Length of the bottom cut.

16

Length of the stair foot.

17

Width of the staircase, including stringers.

Create foot

Define whether a foot is created at the bottom of the stairs.

Step shapes tab

Use the Step shapes tab to define the shape of steps.

All other steps/Last step at foot

Select the step shape. You can define the shape of the last step at the bottom if you set Last step same as other step to No.

Option

Description

Default

Beveled

From the list below the step shape options, select whether you want to enter a dimension or an angle.

AutoDefaults can change this option.

Straight step

Top straight, bottom beveled

Enter two dimensions.

Top beveled, bottom straight

Enter the vertical dimension and then select whether you want to enter an angle or a horizontal dimension.

Top and bottom staight

Enter vertical dimensions and then select whether you want to enter an angle or a horizontal dimension.

out

Select the shape of the step front edge and enter the required dimensions.

  • Default

  • Radius: Creates rounded edge.

  • Chamfer: Creates chamfered edge.

  • No: Creates square edge.

in

Select the shape of the step inner corner and enter the required dimensions.

  • Default

  • Radius: Creates rounded inner corner.

  • Chamfer: Creates chamfered inner corner.

  • No: Creates square inner corner.

Landings tab

Use the Landings tab to create top and/or bottom landings.

Create landings

Define whether one or two landings are created, or whether there are no landings.

Landing dimensions and extensions

Description

1

2

Thickness of the bottom landing.

Length of the bottom landing.

3

4

Length of the top landing.

Thickness of the top landing.

5

7

Left and right extensions of the bottom landing.

6

8

Left and right extensions of the top landing.

Ridges tab

Use the Ridges tab to create horizontal and/or vertical ridges on both sides or only on the other side of the stairs.

Dimensions

Description

1

2

Thickness of the vertical ridge.

Width of the vertical ridge.

3

4

Width of the horizontal ridge.

Thickness/height of the horizontal ridge.

Horizontal ridges

Part

Description

Create

Define whether horizontal ridges are created.

Create at foot

Define whether horizontal ridges are created at the foot of the stairs.

This option works in the same way as the Create option.

Inside chamfer

1

Select the type of the inside chamfer and enter the required dimensions.

Corner chamfer

2

Select the type of the corner chamfer and enter the required dimensions.

Slope

3

Set the slope as an angle or a dimension. The slope makes the ridge inclined.

Foot corner chamfer

Define whether corner chamfers are created at the stair foot.

Top and foot ridges

Define the horizontal ridge length at the stair top step and at the stair foot. When no foot is created, vertical ridges continue to the bottom level of the stairs.

Vertical ridges

Part

Description

Create

Define whether vertical ridges are created.

Slope

Set the slope as an angle or a dimension. The slope makes the ridge inclined.

Stringers tab

Use the Stringers tab to create stringers and ridges on the left, right, or both sides of the stairs.

Parts

Part

Description

Create stringers

Define whether stringers are created.

Create top ridge

Select an option to create top ridges.

Create bottom ridge

Select an option to create bottom ridges.

Slope

Use to incline the inner surface of the stringers.

You can define the slope using an angle or a dimension.

Inside chamfer

Define whether the inside edge of stringer is chamfered or not.

Outside chamfer

Define whether the outside edge of stringer is chamfered or not.

Stringer height

Define how the stringer height is determined.

Dimensions

Description

1

Height of the stringer bottom ridge.

2

Horizontal offset of the bottom ridge from the bottom step.

3

Height of the stringer top ridge.

4

Width of the stringer.

5

Difference in height that is the perpendicular distance between the step edge and stringer edge.

You can enter this dimension if Stringer height is Diff in height.

6

Total height of the stringer.

You can enter this dimension if Stringer height is Default or Total height.

Anti-skid/Kick plate tab

Use the Anti-skid and Kick plate tabs to create slip resistant surfaces.

Parts

Part

Description

Creation anti-skid

Creation kick plate

Define whether anti-skids or kick plates are created.

Create anti-skid on foot

Define whether anti-skids are created at the stair foot.

Create cutout

Define whether you want to create cutouts with the anti-skid profile.

By default, the cutouts are not created.

Include in cast unit

Define whether anti-skids or kick plates are included in cast unit.

Profile

Define the anti-skid or kick plate profile by selecting it from the profile catalog.

Rotation

Select an option to rotate the anti-skid or kick plate profile.

Anti-skid/kick plate position

Description

1

2

Anti-skid or kick plate distance from the left edge of the step.

Anti-skid or kick plate distance from the right edge of the step.

Description

1

Distance from the step front edge.

2

Depth for the anti-skid or kick plate.

Attributes tab

Use the Attributes tab to control the properties of different stair parts.

Part attributes

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.

UDA tab

Use the UDA tab to provide additional information about the parts created.

Tip:

The user-defined attributes are case sensitive. Check the correct spelling of an attribute from the objects.inp file.

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