How to use the resultscript for NLTH

This how-to guide explains the usage of the resultscript. Although you can use the script for handling all ranalyses, in normal workflow this should only be used for NLTH analyses (A12/A15). When the workfolder was created the resultscript was already prefilled and prepared in the workfolder. If necessary you can download the template below:

Template Resultscript NLTH

How to use the resultscript

To use the resultscript the user should perform the following steps.

Step 1 - Prepare the folder with the required files

Note

Within the analysis folder, make sure to have the folders with corresponding names of the regarded signals: e.g. ‘S3’.

The folder should be filled by the functions in the mainscript. When the analysis are performed in the DIANA combox make sure to copy all generated resultfiles (from the server) into this folder.

Verify that the following files are present, they are needed to obtain the data, plots, graphs and result pictures of the NLTH analysis (A12/A15):

• XXXX_vX.dat or XXXX_SX_vX.dat (specific to the NLTH model)
• XXXX_vX.json or XXXX_SX_vX.json
• XXXXX.out
• XXXX_vX_OUTPUT_2.tb
• XXXX_vX_OUTPUT_5A.tb and/or XXXX_vX_OUTPUT_5B.tb
• XXXX_vX_OUTPUT_1A_MAX.dnb
• XXXX_vX_OUTPUT_1B_MIN.dnb
• XXXX_vX_OUTPUT_3.dnb

In order to create the result pictures, it is important that the analysis setup is captured within the json-file.

Note

Make sure the naming is correct!, complying to the VIIA naming convention.

Step 2 - Prepare the script

At the start of the resultscript, the user needs for fill in information that is required for the result handling (example provided here is for A12):

# Initiate the session
project = viia_create_project(project_name='XXXX', analysis_type='NLTH', version_nr=1)
analysis_nr = 'A12'
signal = 'S3'

# Input for geo output
geo_output = True
bsc_nls_dir = ''
tva_nls_dir = ''

# Optional, for default: manual_workfolder_location = None
manual_workfolder_location = None

# Optional, for default: diana_view_point = None
diana_view_point = None

The result handling functions are encompassed in a function called as:

project.viia_results(
    analysis_nr=analysis_nr, signal=signal, geo_output=geo_output, bsc_nls_dir=bsc_nls_dir, tva_nls_dir=tva_nls_dir,
    convergence_graphs=True, base_shear_graphs=True, wall_displacement_graphs=True, acceleration_graphs=True,
    result_pictures=True, diana_view_point=diana_view_point)

This function viia_results() localises and reads the required files, after which the model is created and pictures will be generated.

In rare cases the automatic determined view point of the result pictures is not sufficient. In those case a viewpoint can be given manually. If you have a good viewpoint in DianaIE you can request the details of this view point by following piece of code in DianaIE:

list(currentViewPoint())

In the diana command console a list of 11 floats will be printed. That list should be copied and pasted at the diana_view_point variable of the resultscript.

Step 3 - Run the script

When executed in DIANA the model is loaded and all output files are read. The results are converted and graphs, json-files and resultpictures are created. It is possible to run the script in an editor also, but then the result pictures will not be created.

The separate result handling functions encompassed in viia_results() are described in the next steps. These are called internally from viia_results(), hence do not need to be called from the template directly.

It is possible to select only specific output components in the viia_results() function.

In the following example the geo-output is omitted:

project.viia_results(analysis_nr=analysis_nr, signal=signal, geo_output=False)

---

Specific components of the result handling

By default the above function will generate all required result components. The user might want to have a specific result. In this section the sub-functions are explained. These can be used alone, but do require the model to be loaded. You should only run those if certain output needs to be customised, else use the procedure described above.

The convergence graph

The convergence plot is created from the out-file. The graph is generated with the sub-function viia_convergence_graph():

project.viia_convergence_graph()

Figure 68 Example of the convergence graph for the analysis.

The base shear graph

The base shear graph is generated right after, based on the OUTPUT 5A and/or 5B result files. The graph is generated with the sub-function viia_base_shear():

project.viia_base_shear()

Figure 69 Example of the base shear graph for the analysis.

The out-of-plane displacements plot

Displacements of all the walls are also plotted over the length of the signal, based on the OUTPUT 2 result file. There are the graphs of the displacements of top, middle and bottom node and graphs showing the relative displacements. The graphs are generated with the sub-function viia_wall_displacements() in a subfolder ‘OOP_IP_displacements’:

project.viia_wall_displacements()

Figure 70 Example of the wall displacement graph for the analysis.

Acceleration graphs

Acceleration graphs are also plotted over the length of the signal based on the OUTPUT 3 result file. The graphs are generated with the sub-function viia_acceleration_graphs() in a subfolder ‘Acceleration Graphs’:

project.viia_acceleration_graphs()

Figure 71 Example of the acceleration graph for the analysis.

Generation of the result pictures

The last part of result generation is the actual result pictures from DIANA. To get those pictures you must run the resultscript in DIANA. The pictures are generated with the sub-function viia_create_result_pictures_nlth()

viia_create_result_pictures_nlth(project=project)

The A12 analysis folder should now contain the following images, if applicable:

Figure 72 Relative displacements of the walls per storey.

Figure 73 Relative displacements of the floors per storey.

Figure 74 Crack width of the walls per storey in the 1st, 4th and 7th element layers.

Figure 75 Axial stresses in beams and columns per storey, per material.

Figure 76 Shear stresses (and, if applicable, strains) in floors per storey, per material.

Figure 77 Interface displacements per storey.

Figure 78 Interface tractions per storey.