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.
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.
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).