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Access the Analysis Case Data - Nonlinear Static Staged Construction form as follows:
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Use the Analysis Case Data - Nonlinear Static Staged Construction form to view and change the definition of a nonlinear direct-integration time-history analysis case for staged construction. A direct-integration time-history analysis solves equations for the entire structure at each time step, as compared with a modal time-history analysis, which uses the method of mode superposition.
Stage Definition. Use the Duration and User Comments edit boxes in this area of the form to define the stages in the construction sequence.
Add button. Type a value for the number of days in the stage in the Duration edit box and click the Add button to add a stage. SAP2000 will automatically assign the Stage No.
Add Copy button. Click on an existing Duration or User Comments entry. A copy of the data for that stage will be added to the display list.
Modify button. Click on an existing Duration or User Comments entry. The data for that stage will appear in the edit boxes at the top of each display area. Type a revised value or comment and then click the Modify button to change the duration or comment.
Insert button. Highlight a row of data and use the Insert button to insert a row of data above the row of data highlighted in the display list.
Delete button. Click on the stage definition that is to be deleted and click the Delete button.
Data for Stage area. Use the drop-down lists and edit boxes in this area to specify the type of operation and loading for each stage of construction. Select the stage by clicking on it in the Stage Definition area of the form.
Operation drop-down list. Choose the operation for the selected stage of construction (Add Structure, Load Added in Group, Load All in Group, or Remove Structure).
Group drop-down list. Select the group to be included in the stage.
Age at Add edit box. This edit box is available when the Operation selected is Add Structure. Enter a value for the age of the structure when it is/was added.
Load Type drop-down list. This drop-down list is available if the Operation is Load Added in Group or Load All in Group. Choose a static load or an acceleration load.
Load Name drop-down list. This drop-down list is available if the Operation is Load Added in Group or Load All in Group. Choose the load case to which this definition is being added.
Scale Factor edit box. This drop-down list is available if the Operation is Load Added in Group or Load All in Group. Enter a scale factor value in this edit box for the load.
After providing the necessary data, click the Add button to add the load definition to the specified stage of the construction sequence. Click on existing data, revise the data and click the Modify button to make the change. Click on existing data and click the Delete button to delete a load definition.
Show Stages in Tree View button. Click this button to display the Staged Construction Tree form, which shows the stage definition in tree form. The expanded tree will display the Stage number, any user comments, the data specified by stage in the Data for Stage area (i.e., the operation being performed, the objects affected, the age of any added structures at the time those structures were added, any loading and scale factors), and Start Times based on the schedule of days specified in the Duration edit box for each stage. For example, if Stage 1 had a duration of 3 days, Stage 2 has a Start Time of 3 days. If Stage 2 then has a duration of 5 days, Stage 3 will have a Start Time of 8 days, and so on.
Note: When the Show Stages in Tree View button is clicked, SAP2000 may display a message indicating that time dependent information has been specified and that the flag to consider this information is set to off. To turn this flag on so that those time dependent properties can be included in the analysis, click the Nonlinear Parameters Modify/Show button (see below) to access the Nonlinear Parameters form; check the Time Dependent Material Properties check box.
Results Saved. Click the Modify/Show button to access the Results Saved for Nonlinear Static Analysis form and specify the results to be saved for the analysis.
Nonlinear Parameters. Click the Modify/Show button to access the Nonlinear Parameters form and specify the Nonlinear Parameters to use for the analysis.