Lifting bolt parameters

Tool(s): Lifting bolts

'General' tab

4 lifting bolts at top

When you select this option and the element length and/or element weight exceed the specified values, the program places four lifting bolts at the top level. Otherwise two or only one lifting bolt(s) are/is created.
Enter a high value (for example, 999) if you want the program to ignore this parameter.

When you have selected the third method for position calculation, the pairs of lifting bolts are created at the set offset.

1 lifting bolt at top

When you select this option and the element length and element weight fall below the specified values, the program places only one lifting bolt at the top level.
Enter a high value (for example, 999) if you want the program to ignore this parameter.

Lateral lifting bolts

When you select this option, lifting bolts are applied to the left or right side of the precast element in accordance with the selected setting. Lateral lifting bolts are positioned in the same way as lifting bolts at the top.

When you select Starting at wall height, the program only creates lateral lifting bolts when the specified limiting height is exceeded.

When you select Pair of lifting bolts at top level and there are lateral lifting bolts, a lifting bolt pair (instead of a single lifting bolt) is applied to the side at the top opposite the lateral lifting bolts at the specified offset.
This can be useful when the element is to be turned by the crane. By using a lifting bolt pair, you can avoid overloading the single lifting bolt.

Note: This additional pair of lifting bolts is not created if there are two pairs of lifting bolts at the top level (due to the settings for 4 lifting bolts at top).

Move lifting bolts

The program calculates the position of the lifting bolts using the option selected for position calculation. When you select this option, the program moves the lifting bolts to the nearest Lattice girder or Grid point (depending on the selected setting).

Using Edge offset of grid and Axis offset of grid you can define the offsets of the imaginary wall grid. The edge offset specified is applied to the left and bottom of the visible wall side. The edge offset on the right and at the top is calculated from the remaining length (depending on the wall length or height) and the multiple of the value specified for the axis offset.

Calculate position

Select one of the three options to define the position of the lifting bolts in relation to the centroidal axis. The lengths are illustrated in the preview. LMin is calculated from the minimum offset between the centroidal axis and the element edge on the left or right.
Using the second and third option, you can control the edge offset by entering a factor.

Minimum offset to edge

Minimum offset of the outer lifting bolt to the nearest element edge. If this value is not complied with, the program displays an error message but it still creates the lifting bolt.

Anchorage fixtures at bottom

When you select this option, the program places anchorage fixtures below the lifting bolts at the top level. Click the Management button to select the anchorage fixtures.

Specify the leaf (side) into which the fixtures are built and define the height:

Invisible side: the fixtures are built into the "invisible" leaf (side) as seen from the mark number.

Visible side: the fixtures are built into the "visible" leaf (side) as seen from the mark number.

Both sides: the fixtures are built into both sides.

At fixed height: the value specified for the fixture height is mandatory. A negative value is measured from the top; otherwise from the bottom.

As a percentage of wall height: the fixture height is calculated as a percentage of the wall height.

Types... tabs

Depending on the wall weight, wall area and wall height, you can place up to six different types of lifting bolts. The following settings are available for each type:

Display lifting bolt as a bar

A reinforcing bar is used for the lifting bolt.

Length: length of the bar reinforcement used for the lifting bolts.

Diameter: diameter of the bar reinforcement used for the lifting bolts.

Display lifting bolt as a fixture

A fixture is used for the lifting bolt.

Name: fixture name. Click Manage... to open the fixture catalog and select a symbol fixture.

Use lifting bolt up to

While checking that the Wall weight, Wall area and Wall height parameters are not exceeded, the program tries to place the lifting bolt with the smallest type number (Type 1, Type 2, ...).

Enter a high value (for example, 999) if you want the program to ignore this parameter.

Enter high values for all parameters (999 to, 999 m2, 999 m) of lifting bolt Type 1 if you want the program to use only this lifting bolt type.

Restore basic settings

To protect user-defined input parameters from unwanted or unauthorized alteration, any changes you make to the configuration are not automatically updated. You can use Restore basic settings to replace the existing parameters with the default parameters specified in the configuration.

Note: The default parameters are also used when you create a new factory.

Note:
You can use and to save the settings you make to a favorite file and retrieve settings you have already saved.