|
||
|
|
||
Once the influence lines have been calculated, it is possible to view and analyse them.
Perform the calculation following the instructions from chapter Calculating the influence lines.
Open service Mobile loads.
In the branch Influence line select the required result quantity: (i) deformation on members, (ii) internal forces on members, (iii) deformation of nodes, (iv) supports, (v) member stresses.
In the property window select the unit load for which the results should be analysed.
Either use action button [Single check] to view the results for a single member – see below for details.
Or use action button [Preview] to view the results for selected members in the tabular form in the Preview window – see below for details.
This function opens a specialised dialogue for the display of all available influence lines from the selected group ((i) deformation on members, (ii) internal forces on members, (iii) deformation of nodes, (iv) supports, (v) member stresses).
The dialogue consists of a graphical window and a few controls.
It displays the selected influence line in the defined scale. Basic zoom functions are accessible via the pop-up menu. The left-mouse button can be pressed and hold the mouse can be moved to define a window for zoom-window function.
It is important to know that the x-axis of the diagram shows the "unrolled" or "straightened" mobile load track. It means that for non-straight tracks, the actual length of the track is shown.
This control defines the density of numerical values attached to the displayed influence line
Extremes: Only extremes are depicted.
All: All calculated values of the influence line are depicted.
All + number: Each n-th value is depicted.
(informative) It shows the number of the evaluated member / entity.
(available only for 1D members) Each influence line is related to a fixed point. This input box specifies the position of the evaluated section, i.e. the position where the unit load is located. When you enter the value, press button [Redraw].
These input boxes are accessible for evaluation of influence lines for 2D members. They specify the coordinates of the evaluated point. When you enter the value, press button [Redraw].
Depending on the selected group ((i) deformation on members, (ii) internal forces on members, (iii) deformation of nodes, (iv) supports, (v) member stresses) you can choose which quantity you are interested in.
The calculated ordinates of the influence line are multiplied by this factor before they are displayed in the graphical window.
Note: This value may be of great importance especially for displacements and rotations. These values may be very small and considered "zero" by the program. Therefore they may not be displayed until a reasonable multiplication factor is input.
This button regenerates the contents of the graphical window.
Note: The graphical window is always redrawn with the function "Zoom All". If you have adjusted a detail before the regeneration and want to see it again, you must define the detail once again.
This button puts the selected influence line in tabular form into the document.