Crane tool

Last updated April 13, 2021 by Precast Extensions tekla.extensions-precast@trimble.com

Software version: 
Not version-specific
Environment: 
Not environment-specific

Crane tool

 

Introduction

Use the Crane tool to optimize the correct crane type, size and location. Tool can be used in different phases of the project. In estimation you can quickly check the correct crane for the project. In the design phase, you can optimize your design according to the capacities and range of the selected crane. In the erection phase you can plan the optimal crane types and locations. Use the tool for any materials of assemblies.

Set-up

Cranes

Open the crane dialog by double-clicking the “Crane” component in Applications and components catalogcatalog that contains all system components and custom components, and the macros and applications

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Parameters tab page:

 

Crane name

Select the saved crane from the dropdown. Modify the crane properties by pressing the settings button.

Crane color

Choose the color of the crane that will be used when coloring the model by cranes.

Crane rigging

Rigging that is used for the current simulation of the crane. User does not need to control this value as this is automatically set once using the simulation in the Crane Tool.

Boom length (effective)

Boom length that is used for the current simulation of the crane. User does not need to control this value as this is automatically set once using the simulation in the Crane Tool.

Create range cylinder

Creates a cyndiner object to model to represent the crane range.

Properties tab page:

Control the simplified crane geometry object propertiesproperties associated with an object type

Usually a single object property includes a default value that the user can modify.

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Crane properties

Open the crane properties by pressing the settings button in the Crane name row.

Crane parameters

Define the type of the crane and it’s geometry. Geometry fields from A to E and 1 to 5 are defining the sizes of dimensions shown in the  crane image. Notice that value A can have multiple dimensions for mobile and crawler cranes as it represents the different lengths of the telescope parts of the boom.

Capacity chart

For tower cranes, add the table of capacity at a certain distance from the crane center.

For mobile and crawler cranes, add the table of capacity at a certain distance from the crane boom rotation center for each boom length. Notice that the tool does not support entering additional checks for moving jib. 

In the case of mobile cranes the actual boom length for that lift dictates which chart curve we are using to interpolate the capacity.
NOTE! The capacity is interpolated like in the graph! Please take that into consideration when defining the capacity chart. 

Lifting speed

Enter the movement speed values that will be used in the erection time calculation. Tool will sum the total time accordingly:

  • Attach time (defined in rigging)
  • Hoisting up from assigned supply point to its final elevation
  • Trolleying and rotation are expected to happen at the same time. The movement that takes most time will be used from supply point to final destination.
  • Detach time (defined in rigging)
  • Hoisting down from the final destination to the same supply point.
  • Trolleying and rotation are expected to happen at the same time. The movement that takes most time will be used from the final destination to the assigned supply point.

Hoisting up & down, min and max

Hoisting speed is interpolated by the min and max weight capacity and the min and max speed.  
Hoisting from final destination toback to supply point is always using the max speed.

Trolleying

Fixed speed for moving the element closer or further from the crane.

Rotation

Fixed speed for the crane rotation

Custom geometries

You can replace the simplified rectangular beam geometry with a custom partcomponent for creating a part that cannot be created by using any existing part command or part profile

Typically, custom parts are used to create parts that have a complex composition. For example, castellated beams and sandwich panels are often created as custom parts.

. The insertion points of the custom part need to match the points how the tool created the simplified rectangular beams.

HINT: Use parametric custom components so the crane geometries will change also the sizes of the custom parts.

  1. Properties: Use these names for custom componentcomponent that the user creates and uses for creating model objects whose composition the user can modify as a group

    parameters, so that Crane Tool will override those values for those properties:
  • Name
  • Length
  • Width
  • Height
  • Classpart property that groups parts according to identifiers given by the user

    The identifiers of classes are usually numbers. Classes can be used for defining the color of parts in the model, for example. Class does not influence the numbering of model objects.

  1. Length: Use To make the crane tool parameters 

Rigging

Rigging devices are edited by pressing the “Edit rigging’s” in the Crane Tool dialog.

You can add as many rigging devices.

Name

The name of the rigging set up

Type

Choose the type of the rigging device.

Attach / detach duration

Duration to attach / detach assembly to the hook. Use this also to add the time used in fine tuning crane operations in this process.

Rigging dimensions L, A, E, C, B

Values used to calculate the needed extra height for the lift.

Additional weight

Added on top of the assembly weight in the capacity check

Preferred series/names

Used when applying the assemblies with the “Auto” option. For example when assigning a column that has prefix C, it will get that rigging where C has been defined as preferred series.

Supply Point

Supply point is the temporary storage point or the truck location where the assembly is attached to the crane. Crane Tool will calculate the capacity also for the supply points.

You can add new supply points by pressing the “Edit supply points” in the Crane Tool.

It’s not mandatory to give supply points. When there are multiple supply points defined, the closest supply point to the crane will be set with the “Auto” option.

Using the Tool

Open the Crane Tool from the Applications and components cataloguser interface for displaying or modifying information in categorized lists

For example, profile catalog and shape catalog are catalogs.

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Add new crane

Add new cranes by pressing the “Add new crane...” button in the Crane Tool ribbon or activate component “Crane” from the Applications & components catalog.

  1. Pick the center of the crane
  2. Pick the rotation of the crane
  3. Pick the location of the hook

Assign/Unassign

Once the crane(s) are added to the model, you can assign assemblies to those cranes in the Crane Tool.

Open the main viewdrawing view that shows all parts in an assembly, cast unit, or single-part drawing from the selected viewing direction

Main view can be front view, top view, back view, or bottom view. The user can create several main views.

of the crane tool. Crane tool main view shows a list of all available cranes and in most simple case you can:

  • Select the crane in the crane list
  • Select the assemblies and/or cast units in the model which you to be lifted with this crane instance. To ‘assign’ the selected assemblies to the crane click button ‘Assign’ in the crane tool main view toolbar. When any assembly or cast unit is assigned to be lifted with certain crane also the supply point, rigging and boom length
  • Repeat the two steps above for each crane until all assemblies are assigned to some crane

Assigned assemblies

List of assemblies assigned to the selected crane. You can change the Rigging, supply point and used boom length. You can also drag and drop selected rows to other cranes.

Select in model

Set tick box on, to always select model objects with the selections in the Crane Tool.

Coloring options

Color by crane colors the cranes and assigned assemblies according the crane color.

Color by utilization colors the assigned assemblies gradientally by it’s utilization ratioratio of the actual to maximum allowable performance values of structural building objects

Utilization ratio is an analysis result. In Tekla Structures utilization ratio is calculated for steel parts.

. Red assemblies has utilization over 1.00.

Simulate

If you have defined the erection order of the assemblies, the simulation will color all erected assemblies with grey color and the one selected with the crane color. If erection orders are not defined, it will color all other assemblies with transparent grey color.

Options

Weight property name

Define the Tekla weight property that is used for the weight in capacity check.

Sequence number UDA

Define the UDA for the erection order. This number will be used in the simulation and in the SEQ value in the assigned assemblies table.

Weight override UDA

If you want to manually add weights to assemblies, you can set an UDA where you define those weights for the assemblies. Notice that the UDA type needs to be “weight” type.

Lifter locations UDA

Instead of using the same lifter location in the rigging definition for all, you can define an UDA where you type the distance value of the lifter location, that will be then used in the rigging height calculation.

Custom properties

All properties that the tool is showing in the table can be reported and utilized as custom properties. Here is the list of names of those custom properties.

Custom Property

Description

CUSTOM.CRANE_NAME

The name of the currently assigned crane

CUSTOM.CRANE_MAX_UTIL

The maximum utilization at final assembly or supply point location

CUSTOM.CRANE_WEIGHT_UTIL_FINAL

The utilization at final assembly location calculated by the maximum weight capacity

CUSTOM.CRANE_RADIUS_UTIL_FINAL

The utilization at final assembly location calculated by the radial distance

CUSTOM.CRANE_HEIGHT_UTIL_FINAL

The utilization at final assembly location calculated by the vertical lifting height

CUSTOM.CRANE_RADIUS_FINAL

The radial (horizontal) distance at final assembly location

CUSTOM.CRANE_HEIGHT_FINAL

The vertical distance from the crane ground level to the hook at final assembly location. This includes the extra height required by the rigging

CUSTOM.CRANE_WEIGHT_UTIL_SUPPLY

The utilization at supply point location calculated by the maximum weight capacity

CUSTOM.CRANE_RADIUS_UTIL_SUPPLY

The utilization at supply point location calculated by the radial distance

CUSTOM.CRANE_HEIGHT_UTIL_SUPPLY

The utilization at supply point location calculated by the vertical lifting height

CUSTOM.CRANE_RADIUS_SUPPLY

The radial (horizontal) distance at supply point location

CUSTOM.CRANE_HEIGHT_SUPPLY

The vertical distance from the crane ground level to the hook at supply point location. This includes the extra height required by the rigging

CUSTOM.CRANE_BOOM_LENGTH

The crane boom length. This is either calculated automatically by the tool or overridden by the user.

The UDA name for override value is ‘CRANE_BOOM_LENGTH’

CUSTOM.CRANE_RIGGING

The name of the rigging used in lifting. This is either calculated automatically by the tool or overridden by the user.

The UDA name for override value is ‘CRANE_RIGGING’

CUSTOM.CRANE_SUPPLY_POINT

The name of the supply point used in lifting. This is either calculated automatically by the tool or overridden by the user.

The UDA name for override value is ‘CRANE_SUPPLY_POINT’

CUSTOM.CRANE_LIFTING_DURATION

The lifting duration including the fixing/unfixing of the hooks and lifting time from the supply point location to the final assembly location and back.

   

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