Revision of Ver.7.4.1

Settlement Load Cases

Enter the settlement load cases for support settlement analysis.

The procedure for settlement analysis in MIDAS/Gen is as follows:

1. Enter the support settlement groups, which will be likely subjected to simultaneous settlements and the corresponding magnitudes in the Load>Settlement Analysis Data>Settlement Group menu.

2. Define individual Settlement Load Cases for relevant settlement groups in Load>Settlement Analysis Data>Settlement Load Cases.

3. Click the Analysis>Perform Analysis menu or Perform Analysis to carry out the analysis.

4. Upon successfully completing the analysis, we can check the maximum and minimum values computed for the number of possible support settlements. We may also combine the results with the results of other load cases.

From the Main Menu select Load > Settlement Analysis Data > Settlement Load Cases.

Select Settlement Analysis Data > Settlement Load Cases in the Menu tab of the Tree Menu.

 Settlement Load Case

Load Case Name
Enter the name of the support settlement load case.

Select Settlement Group
Select the support settlement groups to be used from the Settlement Group list.

Select the support settlement groups with the mouse and click to include them in the Selected Group. When previously selected support settlement groups are to be excluded, first assign the support settlement groups and click to remove them from the Selected Group.

Smin
Enter the minimum number of support settlement groups that can settle simultaneously.

Smax
Enter the maximum number of support settlement groups that can settle simultaneously.

Scale Factor
Enter the load scale factor.

Description
Enter the description of the support settlement load case.

Operations


Enter a support settlement load case using the data such as Selected Group, Smin, Smax, and Scale Factor.


Select a previously entered support settlement load case to modify.


Select a previously entered support settlement load case to delete.

 

Revision of Ver.7.4.1

View by Max Value Item (with concurrent forces)

Settlement Analysis generates the most critical forces by components (Fx, Fy, Fz, Mx, My and Mz) out of all the load cases of Specified Displacements of Supports defined by the user. The element force components are non-concurrent, which belong to different load cases.

Beam Force Table of maximum non-concurrent forces

In order to design members, concurrent forces are required. The View by Max Value Item (invoked upon right-clicking on the table) provides

the concurrent forces. The concurrent forces correspond to the maximum / minimum force component in the Component column in the table.  

 

Concurrent Force Table

In case Max or Min member forces are the same under 2 or more load cases, the corresponding concurrent forces are tabulated by the priority shown in the table below. For example, when two or more settlement load cases produce a same maximum Fx in an element, the concurrent forces are tabulated for the settlement load case, which produces the largest value of SQRT(My^2+Mz^2).