Design and support parameters dialog box

Tool(s): Slab/roof element design, basic parameters

'Width' tab

These parameters are the defaults for element dimensions when a placing region is created.

Determine element width

Standard panel width

Width for standard panels.
This value is defined in the panel type catalog and cannot be altered here. This applies to hollow core elements, prestressed hollow core elements, TT floors, BubbleDeck, solid brick floors and suspended brick floors. For brick floors, this value is defined by the brick type assigned in the configuration.

Maximum fitted panel width

A fitted panel must not exceed this width. If a dimension is smaller than the standard width but larger than the maximum fitted panel width, two fitted panels will be created.
This value is defined in the panel type catalog and cannot be altered here. This applies to hollow core elements, prestressed hollow core elements, TT floors, BubbleDeck, solid brick floors and suspended brick floors. For brick floors, this value is defined by the brick type assigned in the configuration.

Minimum fitted panel width

This width has to be maintained. If a dimension is smaller than the minimum fitted panel width, two fitted panels will be created. In the case of hollow core elements, prestressed hollow core elements, TT floors and BubbleDeck, the program will generate an invalid element or a strip made of insitu concrete.
This value is defined in the panel type catalog and cannot be altered here. This applies to hollow core elements, prestressed hollow core elements, TT floors, BubbleDeck, solid brick floors and suspended brick floors. For brick floors, this value is defined by the brick type assigned in the configuration.

Half panel width (half floor and solid floor only)

Value for half panels (longitudinal shutters on the pallet are taken into account)

Fitted panel alternative

Fitted panel(s) on both outer sides

Fitted panel(s) on one outer side

Centered fitted panel(s)

Specify where the fitted panels are to be placed within the precast slab/roof. This definition is not available for brick floors of any type.
If you wish to use the finite elements method for structural calculations, the program will propose the Centered fitted panel(s) option.

Maximum element weight (half floor and solid floor only)

[to] Initial value for the maximum element weight. You can also define one (or more) cranes and crane locations on the drawing. In this case the program calculates the maximum weight from the lifting radii and takes this into account in the division.

If standard panels cause the maximum element weight to be exceeded, the program will generate half panels (as with cranes). If the maximum element weight cannot be met even when half panels are used, the panel widths will be reduced incrementally by a fixed value of 5 cm until the maximum element weight is maintained.
Each panel is checked individually. This way, standard panels can also be created after half panels.

Group together half/fitted panels while taking max. element weight into account (half floor and solid floor only)

When element design takes the maximum element weight into account and half panels are placed, the last half panel and the fitted panel or the two fitted panels are combined into one panel if this does not cause the maximum element weight to be exceeded.

Preferred type for fitted panels when minimum width is not adhered to (hollow core element, prestressed hollow core element, TT floor and BubbleDeck only)

Specify whether one or two fitted panel(s) maximum or a strip made of insitu concrete is/are created if the minimum fitted panel width is not maintained.
The strip of in-situ concrete is set for brick floors of any type. This setting cannot be changed. If necessary, you can create two fitted panels instead of the strip of in-situ concrete by entering the panel widths manually or placing fixed points in the preview of the placing region.

Cutting through web allowed (hollow core element and prestressed hollow core element only)

If this option is enabled, the cutting edge can be defined freely, regardless of the permissible region between the webs. This may produce cuts in the web or cuts of which the edge offset to the web is small.

Manual entry of element widths

Function not yet implemented

'Length' tab

These parameters are the defaults for element dimensions when a placing region is created.

Element lengths/slope

Rounding value for panel length

So that elements of brick floors are rounded up to a multiple of the length of the brick assigned, you need to specify the full length of the brick or half its length. Setting half the brick length means that half bricks can also be used for brick floors. For solid brick floors and suspended brick floors, you can make this definition in the corresponding panel type catalog.
This parameter is currently not implemented for the other floor types.

Longitudinal joint between elements

Value proposed for the longitudinal joint between two panels.

Angle at inclined sides

These parameters are the defaults when individual panels are created. This entry is only available for hollow core elements, prestressed hollow core elements, TT floors, BubbleDeck and brick floors of any type. You can define default settings in the Design configuration entry.

Maximum angle at inclined end faces

Limit for angle between the end face and the perpendicular to the span direction. If this value is exceeded, the element cannot be produced. The program will issue a relevant message when designing.
Example

Minimum angle at end face / longitudinal side

This value indicates the angle above which the element's cutting edge is created so that it is parallel to the support. This applies to hollow core elements, prestressed hollow core elements, TT floors and BubbleDeck. For brick floors, the geometry of the precast element is created so that the end faces and longitudinal sides are inclined. All bricks whose centers are within the geometry of the precast element or on its outline are created.
The angle between the end face and the perpendicular to the span direction or between the longitudinal side and the span direction defines the inclination.

If the angle at the end face and/or longitudinal side is less than the value defined, a straight element is created at the corresponding side. This applies to hollow core elements, prestressed hollow core elements, TT floors and BubbleDeck. As a result, the end faces of neighboring elements are stepped.
For brick floors, the geometry of the precast element is stepped at the corresponding side. This normally produces more bricks than an inclined geometry.
The limits defined in the Supports configuration entry are used for calculating the support widths automatically.

Approximation of arcs

These parameters are the defaults when individual panels are created. This entry is only available for hollow core elements, prestressed hollow core elements, TT floors and brick floors of any type. You can define default settings in the Design configuration entry.

Use approximation of arcs

If this option is selected, Allplan uses existing arcs to approximate the end faces of the elements or, in the case of brick floors, the sides of the geometry of the precast element (with as few edges as possible) while taking the maximum values into account.
The limits defined on the Supports tab are used for calculating the support widths automatically.

Maximum number of edges for convex / concave arcs

Maximum number of edges permitted when existing arcs are used to approximate the end faces o the elements or, in the case of brick floors, the sides of the geometry of the precast element.

'Supports' tab

These parameters are the defaults for support conditions when a placing region is created.

Structural supports

Proposed width

Enter the default for supports in the direction of span or transverse to it (in cm). If the Prompt immediately after entry of placing region check box is selected, then the program gives a prompt at every room edge.

Minimum / Maximum width (for hollow core element, prestressed hollow core element, TT floor and brick floors of any type only)

Limit values when support width is entered manually or calculated automatically.

Adjust to perpendicular

This option is only available when you have selected Roof elements for the type. If this check box is selected, the supports are calculated automatically at the hip/ridge and/or valley/eaves. In this case, the elements are moved on the roof plane so that their outlines and a plane that is perpendicular to the global xy plane and that passes through the ridge or valley line touch (i.e. have a point in common).

'BarOv, BendShp' tab

Bar overlap (bottom layer)

Enter the default for the bar overlap in the direction of span or transverse to it (in cm).
If the specific type of entering slab spans is disabled and the Prompt immediately after entry of placing region check box is selected for the relevant support, then the program gives a prompt at every room edge.
If the specific type of entering slab spans is enabled, you can enable the prompt after the entry of the placing region by checking the Prompt when data is entered in dialog line box.

Bending shape (bottom layer)

Here you have a selection form in which to enter the standard bending shape in the direction of span or transverse to it.
If the specific type of entering slab spans is disabled and the Prompt immediately after entry of placing region check box is selected for the relevant support, then the program gives a prompt at every room edge.
If the specific type of entering slab spans is enabled, you can enable the prompt after the entry of the placing region by checking the Prompt when data is entered in dialog line box.

The parameters for the top bar layer are available for all floor types with the exception of half floors and brick floors.

'Rec,Other' tab

Classification of recesses

These parameters are the defaults for recesses when a placing region is created. This entry is available for hollow core elements and prestressed hollow core elements only. You can define default settings in the Recesses configuration entry.

Small openings: allowed to move

If this option is selected, openings that are in the area of the web or that are narrower than the maximum width between two webs and of which an edge is in the cavity (which has to remain empty due to the minimum offset to the web) will be moved to the permitted region between two webs in a direction that is transverse to the span direction. They will be placed at the nearest edge.

Medium-sized openings: allowed to enlarge and move

If this option is selected, the program will move and enlarge recesses whose widths are larger than the maximum width between two webs and which meet the limits specified in the panel type catalog so that the cut is not located in the illegal region beside or within the web of a panel. They are always moved in a direction that is transverse to the span direction. The program will move these recesses to the nearest edge and will enlarge them up to the limits.

Recesses in midspan or in the lateral region whose offsets to the end face are too small will be moved so that the minimum offset specified in the panel type catalog is met.

Large openings: preferred

The following regulation applies to recesses that do not meet the limits defined in the panel type catalog. The selected setting is saved with the recess and can be modified later using the Modify Recesses tool. This allows you to create different recesses in a placing region.



Allplan 2016
(C) Allplan GmbH Privacy policy