Defining the shape of a new stirrup

The cross-section shape is drawn and filled with colour.

Individual edges are numbered. The numbering is referred to in various dialogues for input and editing of reinforcement.

Edges of the cross-section are drawn also with an offset. The offset is in dashed line that can be seen before defined stirrups cover this line.

Corner and intersection points may be drawn in the picture as well to simplify manual definition of a new stirrup shape. Also user defined points may be drawn.

Each defined stirrup is displayed.

This button starts manual definition of a new stirrup.

The procedure for the input of a stirrup is described at the end of this topic.

This button can be used only once for each template. It generates a stirrup that follows the shape of the cross-section.

The procedure for the input of a stirrup is described at the end of this topic.

The diameter of the new stirrup.

This item is available only for the first stirrup in the template. Once the first stirrup has been defined, the item becomes disabled. The reason is that all the stirrups in one template must have the same diameter.

If required, the user may insert arbitrary number of "auxiliary" points. It is then possible to pick these points when the shape of a new stirrup is being defined manually.

Any of already defined "auxiliary" points can be deleted.

All points may be deleted in one step.

The list states all the stirrups defined in the current template. If required, any stirrup may be removed (via button [Delete]).

A name of he stirrup may be typed here.

This item inform about the number of the stirrup. The template manager always shows local numbering of reinforcement bars.

This information is not shown if the Stirrup shape dialogue has been opened from the Template manager. It appears only if the Stirrup shape dialogue has been opened through function Editreinforcement in section () or through the action button in the property window of a stirrup that has been already inserted into a particular member.

This item specifies the diameter of the stirrup. The default value is taken from the Setup dialogue.

It is possible to select required colour of the stirrup.

This item informs about the number of vertices of the stirrup.

The stirrup may be closed or open.

If ON, the stirrup is not used for calculation. Its purpose is to help support the longitudinal reinforcement.

If Detailing is ON, it is possible to say whether the stirrup is displayed in the graphical window of the program (Active = ON), or whether it is hidden and can be seen ONLY in the dialogue for editing of the stirrup shape (Active = OFF).

If ON, also torsion is checked. Moreover, the shape of the stirrup must allow for the transfer of torsion.

If a stirrup template consists of more than one stirrup, this option can be turned ON for one stirrup only – see the following note.

Important: Only one (1) stirrup in a section can be used for the check of torsion. For example, in a T-section, only the stirrup in the web OR the stirrup in flange can be taken into account. Moreover, only a stirrup in one (1) stirrup zone and in one (1) span can be selected for the torsion check. In other words, if there are overlapping stirrups or more stirrup zones in one beam/span, the torsion checkbox can be marked only for one (1) particular stirrup in the section.

For open stirrup, the user may specify the length of the first straight part of the stirrup.

For open stirrup, the user may specify the length of the last straight part of the stirrup.

If ON, the stirrup is used in calculation of shear stress in joints of phased cross-sections, e.g. in a T-section the shear stress between the flange and the web.

Important: Only a stirrup in one (1) stirrup zone and in one (1) span can be selected for shear stress calculation. In other words, if there are overlapping stirrups or more stirrup zones in one beam/span, the Shear in joint checkbox can be marked only for one (1) particular stirrup in the section. However, contrary to the torsion (above), all partial stirrups (web, flanges, etc.) in on one section can be selected.

Specifies the number of legs of the stirrup.

Defines the diameter of stirrup bend.

Shows the name of the stirrup. It can be changed on tab Analysis model.

Selects the anchorage type. See Hooks for options.

If torsion is switched on in "Analysis model" parameters, the user may select from three types of stirrup (marked A, B, C). If torsion is switched off in "Analysis model" parameters, two other types of stirrup are available (D, E).

Selects the vertex at which the anchoring detail is made.

Defines the anchorage length. The exact meaning of the parameter is clear from the guiding picture. In order to see the picture, position the mouse cursor on top of words Anchorage type and let the mouse steady for a while. The picture is shown.

If this option is ON, the program verifies the anchorage length and if the hook would stick out of the formwork, an additional bend is added so that the hook follows the shape of the formwork (i.e. the outline of the cross-section).

The total anchorage length is permanently checked to satisfy the condition of the minimal length stipulated in the appropriate standard. That means that e.g. change of the diameter of the bar may result in the change of the anchorage length.

Shows the total bar length.

The anchorage length is adjusted in accordance with the active standard. The minimum anchorage length is calculated and the hook length is adjusted accordingly.

Normally, only the minimal length is checked, i.e. it is not possible to input a stirrup with anchorage length shorter than the minimum. However, it is possible to define larger anchorage length. This button should re-adjust the minimum required anchorage length.

Reads the default values.

If ON, points in intersections of individual "offset edges" are drawn in the graphical window.

This option is available only for cross-section shapes where this "intersection" exists. For example, for rectangle this option is not available.

If ON, points in corners of the "offset outline" of the cross-section are drawn in the graphical window.

Defines the size of the auxiliary points and text.

If ON, dimension lines are displayed in the graphical window of the dialogue.

If necessary, the graphical window may be manually regenerated.