Multiple Load Import 

The new Multiple Load Import feature works by allowing the exchange of boundary conditions between Settle3 and CSI SAFE. This feature allows users to import multiple segments of load from structural software such as SAFE through excel file to Settle3 for subgrade modulus reaction. This procedure is made more robust by allowing users to import batch loads with associated coordinates, magnitude, and elevation. Then, Settle3 will automatically generate query points either at the center of each imported load or at the edges of loads for output results such as subgrade soil modulus. 

Import Loads from SAFE

Select: Loads > Loads from SAFE > Import Loads.

You will be directed with steps to import loads from the excel file produced by CSI SAFE. Two file types are required from the user:

Import Loads from SAFE

-          Areas connectivity

Below is an example spreadsheet that has the area connectivity information.
Excel Spreadsheet with Area Connectivty Information

It has the area and its associated node points. To use this feature, you must ensure that list of area numbers, along with its associated nodes (point1, point2, etc) has to be labeled.

Note: For each area, there must be at least 3 vertices to create the load, and each area can take up to 5 points.

Auto is the automation of the node numbers and area which is processed within CSI SAFE software. Settle3 is mostly reading the area and point columns. We advise you to use the spreadsheet that is produced from SAFE without modification, as this helps keep the data that is required to be imported in SAFE. In case if you have any modification to the area or the points which makes it unable to create the load geometry, you will get the following error message from Settle: ‘Wrong data type in the data sheets! Please check output sheet and remain the original data format’ followed by the error message where a problem occurred during load importing.

Settle3 Warning Message

Settle3 Warning Message

-          Soil pressures.

Below is an example of soil pressure spreadsheet which contains the information of magnitude of loads for the area labels defined in the ‘areas connectivity’ sheet.

Excel Spreadsheet of Soil Pressures

This spreadsheet will have the area, element label, associated node, and its associated magnitude of load (SurfPress) as surface pressure. We encourage you to keep the format of this spreadsheet as is directly produced from SAFE. If you want to modify, you can modify the columns, but you must ensure the area element, node numbers, and its surface pressure columns are included in the spreadsheet.

Failure to keep the required columns or if the spreadsheet is missing some information, it will prompt the two error messages you’ve seen from the area connectivity error message where Settle3 will not be able to create load geometry with the spreadsheet, so we encourage you to go back to the spreadsheet and examine where the error is coming from.

Import Loads Settings

After importing the spreadsheets, Settle3 allows you to define different settings for the imported load.

Merge Loads

This value is to merge the loads by number of divisions from the spreadsheet. Having number of divisions speed up the process in importing the load as there may be many small load segments which may cause Settle3 to slow down. If you want to maintain the original load geometry from the spreadsheet, you can enter 0 divisions. By default, this value is kept at 30.

Customize stress divisions range/color

By selecting this option, you can define the range of each division you have created with min / max values in stress. Colorize Loads for each stress division option allows you to see the custom stress division with unique colors assigned for improved visualization of the imported loads as shown below.

Import Loads from SAFE

Merge close vertices with distance smaller than:

This option allows users to merge any close vertices that is too close to each other which may create overlap of the load. In this case, it is advised to merge any vertices that is close to each other to create more reasonably distributed load condition.

Load Depth

This option allows users to set loads to depth to either depth / elevation depending on the model setting.

Create excavation load

This option allows users to create the excavation load on the regions of the imported load.

Warning message on average values:

For imported loads, if the imported loads have nodes that does not have soil pressure, Settle3 will do the automatic averaging of the nearby nodes with pressure as shown below as an example.

Settle3 Warning Message

While the load is being imported, you will see the progress bar at the bottom of the modeler.

The imported load with custom division with colors will be shown in the modeler as shown below:

Model View with Custom Division of Colours

Export Modulus of Subgrade Reactions

Settle3 will automatically generate query points either at the center of each imported load or at the edges of loads for output results such as subgrade soil modulus. 

You can export these query points to excel spreadsheet by selecting: Loads > Loads from SAFE > Export Modulus of Subgrade Reactions.

This feature allows you to export the modulus of subgrade reaction at load depth of each query point. You can also define each category for subgrade reaction with specific min/max range for each cluster.

Note: You have to compute Settle3 before using this feature so that you will see the min/max value at load depth in this dialog as shown below: