Tutorial

Hydrostatic Loading
Joint Patterns

Click the File menu > New Model command to display the New Model form.
Click the drop-down box to set the units to .
Click on the Wall template button to display the Shear Wall form. In that form:

Type 30 in the Number of Divisions, X edit box.
Type 15 in the Number of Divisions, Z edit box.
Type 1 in the Division Space, X edit box.
Type 1 in the Division Space, Z edit box.
Click the OK button.

Click the “X” in the top right-hand corner of the 3-D View window to close it.
Click the drop-down box in the status bar to change the units to .
Click the Define menu > Materials command to display the Define Materials form. Highlight the CONC material and click the Modify/Show Material button to display the Material Property Data form. In that form:

Verify that the Modulus of Elasticity is 3600 and Poisson’s ratio is 0.2.
Click the OK buttons on the Material Property Data and Define Materials forms to close the forms.

Click the drop-down box in the status bar to change the units to .
Select all of the support joints at the bottom of the wall by “windowing.”
Click the Assign menu > Joint > Restraints command to display the Joint Restraints form. In that form:

Click the fixed base fast restraint button to set all degrees of freedom (U1, U2, U3, R1, R2 and R3) as restrained.
Click the OK button.

Click the Define menu > Joint Patterns command to display the Define Pattern Names form. In that form:

Type HYDRO in the edit box in the Patterns area.
Click the Add New Pattern Name button.
Click the OK button.

Click the Select All button on the side tool bar.
Click the Assign menu > Joint Patterns command to display the Pattern Data form. In that form:

Select HYDRO from the Pattern Name drop-down list.

Note: Press the F1 key on the keyboard for context sensitive help on the form illustrating the definition of the Constants. When finished reading the help, click the “X” in the top right-hand corner of the Help window to close it.

Type -1 in the Constant C edit box.
Type 15 in the Constant D edit box.
Click the OK button.

Click the Select All button .
Click the Assign menu > Area Loads > Surface Pressure (All) command to display the Area Surface Pressure Load form. In that form:

Select the By Joint Pattern option.
Select HYDRO from the Pattern drop-down list.
Type .0624 in the Multiplier edit box.
Click the OK button.

Click the Show Undeformed Shape button to remove the displayed joint force assignments.
Click the Run Analysis button to display the Set Analysis Cases to Run form. In that form:

Highlight (select) MODAL in the Case Name list and click the Run/Do Not Run Case button.
Verify that the DEAD analysis case is set to Run in the Action list.
Click the Run Now button to run the analysis.

When the analysis is complete check the messages in the SAP Analysis Monitor window (there should be no warnings or errors) and then click the OK button to close the window.
Right click on the center joint at the top of the wall and note the Y-direction displacement.
Click the Lock/Unlock Model button and click the resulting OK button to unlock the model.
Select the joints along the sides of the model by “windowing” each side separately.
Click the Assign menu > Joint > Restraints command to display the Joint Restraints form. In that form:

Click the fixed base fast restraint button to set all degrees of freedom (U1, U2, U3, R1, R2 and R3) as restrained.
Click the OK button.

Click the Run Analysis button to display the Set Analysis Cases to Run form. In that form, click the Run Now button to run the analysis.
When the analysis is complete check the messages in the SAP Analysis Monitor window (there should be no warnings or errors) and then click the OK button to close the window.
Right click on the center joint at the top of the wall and note the Y-direction displacement