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Detailed checking of limit strain

Parts of the dialogue

Step / position	The user may select the section of the beam that should be calculated.
Calculation	This group shows internal forces in the selected section, enables the user to change the settings and calculate the results.
Side view of the beam	The designed beam is shown. Mouse cursor may be used to select the required section for assessment. Pop-up menu may be used to control the view adjustment.
Set of graphical windows	The set of graphical windows presents all the important information related to the design. Pop-up menu may be used to control the view adjustment.
Information window	Any comments accompanying the calculation are listed in this window.
Numerical output	Change of setup This button opens a dialogue where you can specify what the content of the output document is to be. Output This button produces the output either to the Document or to the Preview window.

Step / position

Step	This value defines the step by which the section is moved if Move cursor left or Move cursor right is clicked.
Position	This value specifies the x-coordinate of the section that is assessed.
Move cursor left	Selects a section that is located one step from to the left from the current section.
Move cursor right	Analogous to the previous item.
Move to previous segment	This button is meaningful only for "members" consisting of several parts, e.g. continuous beam where each span is modelled by a separate beam. It moves the cursor to the previous segment (part).
Move to next segment	Analogous to the previous one.
automatic recalculation-redraw	If ON, all the calculations and display regenerations are done automatically once the user changes any value in the dialogue. If OFF, the use must invoke the calculation manually through button [Calculation].
Section	Selected section The assessment is carried out for the selected section of the beam. Extreme section The program automatically finds the extreme section for the selected quantity and performs the check of this critical section.

Calculation

Code setup	Filtered dialogue for adjustment of design parameters is opened on the screen.
Extreme	Selects the quantity for which the check is performed. Or if Extreme section is adjusted in the previous group, this selects the quantity for which the extreme is found.
Internal forces	Lists internal forces in the selected section.
Calculation	Performs the calculation.

Set of graphical windows

Name of the window	Contents
Cross-section	The shape, dimensions and description of the assessed cross-section.
Loads	The external loads acting in the selected section.
Strain*)	Distribution of the strain over the cross-section. It is graphically shown which part of the cross-section is subjected to tension and which to compression.
Stress*)	Analogous to strain.
Strain 3D*)	3D drawing of the strain distribution over the section.
Stress 3D*)	Analogous to Strain 3D.
Force 3D*)	The forces acting in the individual reinforcement bars and in the concrete.
Stress-strain diagram	Stress-strain diagram. The user may click the required point on the cross-section image and the corresponding stress-strain diagram is shown.

*) Initial and resultant state

For the quantities marked with an asterisk, the user may select whether the (i) initial state, or (ii) resultant state, or (iii) both should be displayed.

This selection can be made in the Picture properties dialogue that can be opened through the pop-up menu of the graphical window.

Values

Initial	The initial state is the state of the cross-section wherein all permanent loads including prestressing are applied.
Resultant	The resultant state is the state of the cross wherein all loads (permanent and variable including prestressing) are applied.
Initial and resultant	Both the previous option are shown together in one picture.

Material

All	The diagram is displayed for all the material in the cross-section.
Concrete	The diagram is displayed only for the concrete part of the cross-section.
Reinforcement steel	The diagram is displayed only for the reinforcement steel.
Strands	The diagram is displayed only for strands.
Steel	The diagram is displayed only for (soft) steel.

Procedure to select the state to be displayed

Select the graphical window (tab) you want to review.
Place the mouse cursor inside of the graphical window.
Click the right-mouse button, the pop-up menu is opened on the screen.
Select function Picture properties and click it.
Make required settings in the dialogue.
EITHER: Confirm with [Apply] to see the changes and NOT to close the dialogue. OR: Confirm with [OK] to see the changes and close the dialogue.

The following table demonstrates the individual windows through a sample picture they may contain.

Cross-section	$image\PrestressCheckStrainCSS.gif$
Loads	$image\PrestressCheckStrainLoad.gif$
Strain	$image\PrestressCheckStrainStrain1.gif$ $image\PrestressCheckStrainStrain2.gif$
Stress	$image\PrestressCheckStrainStress1.gif$ $image\PrestressCheckStrainStress2.gif$
Strain 3D	$image\PrestressCheckStrainStrain3D.gif$
Stress 3D	$image\PrestressCheckStrainStress3D.gif$
Force 3D	$image\PrestressCheckStrainForce3D.gif$
Stress-strain diagram	$image\PrestressCheckStrainSSDiagram1.gif$ $image\PrestressCheckStrainSSDiagram2.gif$

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