Function
- Analysis results of fiber sections from time history analysis are displayed. The results consist of member force history of inelastic beam members modeled with fiber elements, stress - strain results of each section cell, and the state of fibers.
Call
From the main menu, select [Results] tab > [Type : Time History Analysis] > [Time History Analysis] group > [Fiber Section] > [Analysis Results of Fiber Section]
Input
Analysis Results of Fiber Section dialog box
Element
Enter a beam element number modeled with fibers. Analysis results of the fiber model defined within the element are produced.
Load case
Select a time history analysis case defined in Time History Load Cases.
Object for Plotting
Section : Plot the analysis results of the entire section of the selected element.
Fiber : Plot the analysis results of each cell of the selected element.
Position : Select the positions in the element local x-direction where the results are required. 5 Positions including i and j ends can be selected as shown in the following figure.
<Figure 1 >
Type of Graph
Define the types of X and Y axis of the results output.
If Section is selected
X-axis can be defined for Dx, Ry, Rz, Fx, My, Mz, and Time. Y-axis can be defined for Dx, Ry, Rz, Fx, My and Mz. For 6 most frequently used combinations of components, selection can be made by the use of the buttons provided.
Dx-Fx : Displacement in the x-axis direction and axial force in the element coordinate system.
My-Fx : Bending moment about the y-axis and axial force in the element coordinate system.
Ry-My : Rotation about the y-axis and bending moment about the y-axis in the element coordinate system.
Mz-Fx : Bending moment about the z-axis and axial force in the element coordinate system.
Rz-Mz : Rotation about the z-axis and bending moment about the z-axis in the element coordinate system.
My-Mz : Bending moment about the y-axis in the element coordinate system - Bending moment about the z-axis.
If Fiber is selected
Time : Time
SN : Strain
SS : Stress
Plot Table : Generate the time history analysis results in a table format.
Plot Graph : Display the graph based on the assigned axes.
: Select cells.
: Unselect all the selected cells.
: Display all the cells.
: Zoom the selected screen display.
: Zoom in the screen.
: Zoom out the screen.
: Turn on/off the axis.
View Cell Number : Display Cell Numbers
Fiber Cells are assigned numbers according to the following rules:
Numbering order for materials: from Concrete Cell to Steel Cell
Numbering order for directions: 1. from left to right, 2. from up to down
Fiber State
Specify the state of the output display for the fiber model.
Tension : Display the analysis results of the tension side.
Compression : Display the analysis results of the compression side.
Elastic, Crack, Yielding, Crushing : Select colors for each fiber state.
Blending : Define the intensity of the display colors.
Time Step : Select a time history step at which analysis results will be produced.
Initialize Fiber : Initialize the fiber model.
Plot Fiber State : Plot the analysis results of the fiber model.
Save Window As *.bmp : Graphical data for analysis results can be saved in the Windows Bitmap (BMP) file format.
The definition of Fiber State in midas Civil varies depending on the reinforcing steel and concrete, and it differs for each material model. The definitions of each Fiber State are as follows:
|
Fiber State of Steel Tension Range : Elastic, Yielding |
Fiber State of Concrete Tension Range : Elastic, Crack |
|
Menegotto-Pinto Model Elastic within the rectangle zone and Yielding elsewhere
Bilinear Model Elastic within the rectangle zone and Yielding elsewhere
Elastic within the rectangle zone and Yielding elsewhere
Trilinear Model Elastic within the rectangle zone and Yielding elsewheressssssssssssssssss
|
Kent & Park Model Tension : Compression :
Japan Concrete Standard Specification Model Tension : Compression :
Japan Roadway Specification Model Tension : Compression : Japan Highway Corporation Model Tension : Compression : Trilinear Concrete Model Tension : Compression : |
Animation
Select the time history step at which the analysis results need to be produced.
Step : Specify the step at which the time history analysis results need to be displayed. If a specific step is entered, it moves to the step directly.
Increment : Graphic output is produced and recorded at the specified increment.
Time : The actual time of the loading corresponding to the current step is produced.
: It auto-generates the animated results of time history analysis. The interval of display is at the specified Increment.
: Pause Animation generation.
: Stop Animation generation.
: Moves to the first step of the time history analysis result.
: Move backward to the previous steps by the increment.
: Move forward to the subsequent steps by the increment.
: Move to the last step of the time history analysis results.