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Forces Created Edited

Beam Diagrams


  • Check Shear Force Diagram (SFD) and Bending Moment Diagram (BMD) for beam elements.
  • If the P-Delta analysis is performed, calculate the displacement inside the beam to calculate the exact bending inside the beam.


NOTE.png In P-Delta analysis, the moment of the inner point excluding both nodes of the beam element must reflect the additional moment generated in the form of a product of the displacement of both nodes and the P-Delta load to be accurately calculated. Such calculations were not previously reflected because there was a problem of calculating the displacement of arbitrary points inside the beam, but by improving them to calculate the displacement of the inner point, accurate moment calculation is possible even during P-Delta analysis.
This feature applies only to the beam element.



From the main menu, select [Poshover] tab > [Diagram] group > [Forces] > [Beam Diagrams]



Pushover-pushover results-forces-beam diagram.png

Beam Diagrams dialog box

Load Cases/Combinations

Select a desired load case, load combination or envelope case.

The Construction Stage applicable for the output of the construction stage analysis is defined in Select Construction Stage for Display or Stage Toolbar. Click ....png to the right to enter new or modify existing load combinations. (Refer to "Load Cases / Combinations")


Specify the step for which the analysis results are to be produced. The Step is defined in geometric nonlinear analysis as Load Step, and additional steps are defined in the construction stages of bridges or heat of hydration analyses.

Max/Min Diagram

Absolute maximum values of Envelope can be checked in Beam Diagram.


Select the desired member force component among the following:

Part : Select a specific part for which member forces will be produced. This function is activated when parts are defined in the Composite Section for Construction Stage.

Fx : Axial force in the element's local x-direction

NOTE.png When axial force (Fx) is selected, and "Show Truss Force" is checked, truss member forces are simultaneously produced. When axial force (Fx) is selected and "Only Truss Force" is checked, only the truss member forces are generated.

Mx : Torsional moment about the element's local x-axis

Fy : Shear force in the element's local y-direction

Fz : Shear force in the element's local z-direction

Fyz : Shear forces, Fy & Fz displayed simultaneously

My : Bending moment about the element's local y-axis

Mz : Bending moment about the element's local z-axis

Myz : Bending moment, My & Mz displayed simultaneously

Mb : Bi-moment

Mt : Twisting moment

Mw : Warping moment

NOTE.png If the 7 degree of freedom option is not selected in Section Property, the beam force option associated with the 7 degree of freedom is not activated.

Show Truss Force : Output option to produce truss member forces simultaneously

Only Truss Force :Output option to produce truss member forces only

Display Options

Exact : Display the member forces calculated by the Detail Analysis process all along the length of each beam element including both end nodes.

NOTE.pngExact option is applicable to linear static analysis only. Thus, the option is inactivated when moving load cases, nonlinear analysis load cases or Envelope load combinations are selected.

5 Points : Display the member forces calculated at both end nodes and the quarter points of each beam element. The diagram is presented by connecting the 5 points.

No Fill : Display only the outline representing the magnitudes of the member forces.

Line Fill : Display the diagram filled in with color lines.

Solid Fill : Display the diagram filled in with color surfaces.

Scale : Drawing scale for member forces.

Type of Display

Define the type of display as follows.

Contour : Display the member forces of beam elements in contour.

Deform : Display the deformed shape of the model.

Values : Display the member forces of beam elements in numerical values.

Legend : Display various references related to analysis results to the right or left of the working window.

Animate : Dynamically simulate the member forces of beam elements.

Undeformed : Overlap the undeformed and deformed shapes of the model.

Mirrored : "Mirrored" allows the user to expand the analysis results obtained from a half or quarter model into the results for the full model by reflecting planes.

Quick View : Display the Beam Force Detail Diagram for an element in a separate window.

Current Step Force : Only beam forces occurring at the current stage of construction are output.

Output Section Location

Assign the section locations at which member forces of the beam elements are produced in numerical values.

I : Display the member force at the start node (N1) of a beam element.

Center : Display the member force at the center of a beam element.

J : Display the member force at the end node (N2) of a beam element.

Abs Max : Maximum absolute values of member forces among the 5 points of (4-sectioned) beam elements are displayed at the centers of the beam elements.

Min/Max : Minimum and maximum member forces are numerically displayed at the corresponding locations among the 5 points of (4-sectioned) beam elements.

All : The member forces at the i-end, center and j-end are numerically displayed.

(Batch Output Generation)

Given the types of analysis results for Graphic outputs, generate consecutively graphic outputs for selected load cases and combinations. A total number of files equal to the products of the numbers of checked items in the three columns of the dialog box below are created.

Batch_Output_Generation___.png : Assign a Base File Name under which the types of results (selection data in the Batch Output Generation dialog box for graphic outputs) are stored.

Batch_Output_Generation___.png : Specify the Base Files to perform Batch Output Generation, construction stages, load cases (combinations), steps, etc. in the following dialog box.

Pushover-pushover results-forces-beam diagram-batch output diagram.png

Saved Menu-Bar Info's : Listed here are the Base Files. Select the Base File Names for Batch Output.

Delete the selected : Delete all the Base Files selected with the mouse.

When the construction stage analysis is carried out, all the construction stages are listed. We simply select the stages of interests to be included in the batch output. If no construction stage analysis is performed, the column in the dialog box becomes inactive and lists load (combination) conditions.


The results output of all the construction stages are produced. The construction stages are listed below.

Post CS Loads

Outputs only the results of the Post CS model. The list at the bottom lists the load (combination) conditions applied to the finished model.

Use Saved

Apply only the (saved) step or load (combination) condition selected at the time of creating each Base File.

Stage LCase/LComb

When the construction stage analysis is carried out, the auto-generated construction stage load conditions and the additionally entered construction stage load combinations are listed. Check on only the load (combination) conditions that will be used to produce batch outputs. This column becomes inactive if "Final Stage Loads" is selected or no construction stage analysis is carried out.

Step Option

Specify the steps for which the outputs will be produced when the construction stage analysis or large displacement geometric nonlinear analysis is performed.

Saved Step : Use only the steps used for creating the Base Files

All Steps : Use all the steps

Output Options

Output File Type

Select a Graphic File type, either BMP or EMF.

Auto Description : At the top left of the Graphic Outputs produced in batch, auto-generate and include the notes such as the types and components of the analysis results, construction stages and steps, load (combination) conditions, etc. The font size, color, type, etc. can be changed upon clicking the ....png button.

Output Path

Specify the path for saving the graphic files to be produced in batch.

File Prefix : Specify the prefix of the Graphic Files to be created. The filenames will be consisted of "Prefix"_"Base File Name"_"Load Comb.".bmp(emf) or "Prefix"_"Base File Name"_"Stage"_"Stage LCase"_"Step".bmp(emf).

Make Output : Produce the specified batch Graphic Files reflecting the contents of the dialog box.

Export / Import

Produce the contents of data input in the Base Files and Batch Output Generation dialog box in a binary type file (fn.bog). Click the button and select a fn.bog to use the same output format.

NOTE.png Import /Export is only meaningful for different projects. In a given structural model, the Base Files are automatically stored and listed.

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