The template structures available using the Shells form includes cylinder, barrel shell, multi-bay cylindrical shell, hyperbolic paraboloid, partial sphere, spherical dome, or parabolic dome.
Choose the type of shell by clicking on it in the Shell Type drop-down list in the upper left corner of the form. A drawing of the selected shell type will be shown in the small display box.
Cylinder Dimensions
Cylinder Height edit box. Specify the height of the cylinder in this edit box.
Num. of Divisions, Z edit box. Specify the number of divisions along the Z axis in this edit box.
Radius edit box. Specify the radius of the cylinder in this edit box.
Num. of Divisions, Angular edit box. Specify the number of angular divisions for the cylinder in this edit box.
Locate Origin button. Click this button to display the Coord System Location and Orientation form. Use the form to specify the location of the origin for the model.
Section Properties
Areas drop-down list. SAP2000 will suggest a section property for the areas in this drop-down list. The section property will apply to all of the areas.
TIP: Click the + (plus) symbol next to the drop-down list to access the Area Sections form; use that form to add, modify or delete an area section definition. The Assign menu > Areas > Area Sections command can be used to change the section property later, if needed.
Restraints check box. When this check box is checked, SAP2000 will assign default restraints to each point at the base of the model.
Example: Use of the cylinder template is demonstrated in Problem T.
Note: Click the Parametric Definition button to display a drawing illustrating the following parameters.
Barrel Shell Dimensions
Length, L edit box. Specify the length of the barrel shell in this edit box.
Num. of Divisions, Axial edit box. Specify the number of axial divisions for the cylinder in this edit box.
Roll Down Angel, T edit box. Specify the roll down angle for the cylinder in this edit box.
Num. of Divisions, Angular edit box. Specify the number of angular divisions for the cylinder in this edit box.
Radius, R edit box. Specify the radius of the cylinder in this edit box.
Locate Origin button. Click this button to display the Coord System Location and Orientation form. Use the form to specify the location of the origin for the model.
Section Properties
Areas drop-down list. SAP2000 will suggest a section property for the areas in this drop-down list. The section property will apply to all of the areas.
TIP: Click the + (plus) symbol next to the drop-down list to access the Area Sections form; use that form to add, modify or delete an area section definition. The Assign menu > Areas > Area Sections command can be used to change the section property later, if needed.
Restraints check box. When this check box is checked, SAP2000 will assign default restraints to each point at the base of the model.
Gridlines check box. When this check box is checked, the model will display with grid lines when the OK button is clicked. Uncheck this check box to turn off the grid lines. The View menu > Show Grids command also can be used to turn the grid lines on or off after the model has been initiated.
Example: Use of the barrel shell option is demonstrated in Problem U.
Multi-Bay Cylindrical ShellMulti-Bay Cylindrical Shell
Note: Click the Parametric Definition button to display a drawing illustrating the following parameters.
Multi-Bay Cylindrical Shell Dimensions
Length, L edit box. Specify the length of the multi-bay cylindrical shell in this edit box.
Num. of Divisions, Axial edit box. Specify the number of axial divisions for the cylinder in this edit box.
Roll Down Angel, T edit box. Specify the roll down angle for the cylinder in this edit box.
Num. of Divisions, Angular edit box. Specify the number of angular divisions for the cylinder in this edit box.
Radius, R edit box. Specify the radius of the cylinder in this edit box.
Number of Bays, Y edit box. Specify the number of bays along the Y axis for the cylinder in this edit box.
Locate Origin button. Click this button to display the Coord System Location and Orientation form. Use the form to specify the location of the origin for the model.
Section Properties
Areas drop-down list. SAP2000 will suggest a section property for the areas in this drop-down list. The section property will apply to all of the areas.
TIP: Click the + (plus) symbol next to the drop-down list to access the Area Sections form; use that form to add, modify or delete an area section definition. The Assign menu > Areas > Area Sections command can be used to change the section property later, if needed.
Restraints check box. When this check box is checked, SAP2000 will assign default restraints to each point at the base of the model.
Gridlines check box. When this check box is checked, the model will display with grid lines when the OK button is clicked. Uncheck this check box to turn off the grid lines. The View menu > Show Grids command also can be used to turn the grid lines on or off after the model has been initiated.
Hyperbolic ParaboloidHyperbolic Paraboloid
Note: Click the Parametric Definition button to display a drawing illustrating the following parameters.
Hyperbolic Paraboloid Dimensions
Span Length, Lx edit box. Specify the length of the multi-bay cylindrical shell in this edit box.
Number of Divisions, X edit box. Specify the number of axial divisions for the cylinder in this edit box.
Span Length, Ly edit box. Specify the length of the multi-bay cylindrical shell in this edit box.
Number of Divisions, Y edit box. Specify the number of axial divisions for the cylinder in this edit box.
Height, H1 edit box. Specify the height of the first level of the structure.
Height, H2 edit box. Specify the height of the second level of the structure.
Locate Origin button. Click this button to display the Coord System Location and Orientation form. Use the form to specify the location of the origin for the model.
Section Properties
Areas and Columns drop-down lists. SAP2000 will suggest section properties for the areas and columns in these drop-down lists. The section properties will apply to all of the areas and columns.
TIP: Click the + (plus) symbol next to the drop-down list to access the Area Sections form or the Frame Properties form; use those forms to add, modify or delete an area section definition or a frame section. The Assign menu > Areas > Sections command and the Assign menu > Frame > Sections command can be used to change the section properties later, if needed.
Restraints check box. When this check box is checked, SAP2000 will assign default restraints to each point at the base of the model.
Gridlines check box. When this check box is checked, the model will display with grid lines when the OK button is clicked. Uncheck this check box to turn off the grid lines. The View menu > Show Grids command also can be used to turn the grid lines on or off after the model has been initiated.
Note: Click the Parametric Definition button to display a drawing illustrating the following parameters.
Partial Sphere Dimensions
Start Angle, Ty1 edit box. Specify this start angle for the sphere relative to the Z axis in a clockwise direction.
End Angle, Ty2 edit box. Specify this end angle for the sphere relative to the Z axis in a clockwise direction.
Start Angle, Tz1 edit box. Specify this start angle for the sphere relative to the X axis in a counter-clockwise direction.
End Angle, Tz2 edit box. Specify this end angle for the sphere relative to the X axis in a counter-clockwise direction.
Radius, R edit box. Specify the radius of the sphere in this edit box.
Num of Divisions, Angular edit box. Specify the number of angular divisions for the sphere.
Num of Divisions, Z edit box. Specify the number of divisions along the Z axis.
Locate Origin button. Click this button to display the Coord System Location and Orientation form. Use the form to specify the location of the origin for the model.
Section Properties
Areas drop-down list. SAP2000 will suggest a section property for the areas in this drop-down list. The section property chosen will apply to all of the areas.
TIP: Click the + (plus) symbol next to the drop-down list to access the Area Sections form; use that form to add, modify or delete an area section definition. The Assign menu > Areas > Area Sections command can be used to change the section property later, if needed.
Restraints check box. When this check box is checked, SAP2000 will assign default restraints to each point at the base of the model.
Gridlines check box. When this check box is checked, the model will display with grid lines when the OK button is clicked. Uncheck this check box to turn off the grid lines. The View menu > Show Grids command also can be used to turn the grid lines on or off after the model has been initiated.
Note: Click the Parametric Definition button to display a drawing illustrating the following parameters.
Spherical Dome Dimensions
Radius, R edit box. Specify the radius of the spherical dome in this edit box.
Num of Divisions, Angular edit box. Specify the number of angular divisions for the spherical dome.
Roll Down Angel, T edit box. Specify the roll down angle for the dome in this edit box.
Num of Divisions, Z edit box. Specify the number of divisions along the Z axis.
Locate Origin button. Click this button to display the Coord System Location and Orientation form. Use the form to specify the location of the origin for the model.
Section Properties
Areas drop-down list. SAP2000 will suggest a section property for the areas in this drop-down list. The section property will apply to all of the areas.
TIP: Click the + (plus) symbol next to the drop-down list to access the Area Sections form; use that form to add, modify or delete an area section definition. The Assign menu > Areas > Area Sections command can be used to change the section property later, if needed.
Restraints check box. When this check box is checked, SAP2000 will assign default restraints to each point at the base of the model.
Gridlines check box. When this check box is checked, the model will display with grid lines when the OK button is clicked. Uncheck this check box to turn off the grid lines. The View menu > Show Grids command also can be used to turn the grid lines on or off after the model has been initiated.
Example: Use of the spherical dome template is demonstrated in Problem T.
Note: Click the Parametric Definition button to display a drawing illustrating the following parameters.
Parabolic Dome Dimensions
Start X edit box. Specify the distance along the X axis at the top of the dome.
End X edit box. Specify the distance along the X axis at the bottom of the dome.
Start Angle, Tz1 edit box. Specify this start angle for the sphere relative to the X axis in a counter-clockwise direction.
End Angle, Tz2 edit box. Specify this end angle for the sphere relative to the X axis in a counter-clockwise direction.
Constant, C (C.z = X2) edit box. Specify C, the constant that defines the shape of the parabolic dome. In the X-Z plane, the parabolic shape is defined by Z = x2/C + Constant.
Num of Divisions, Angular edit box. Specify the number of angular divisions for the dome.
Num of Divisions, Z edit box. Specify the number of divisions along the Z axis.
Locate Origin button. Click this button to display the Coord System Location and Orientation form. Use the form to specify the location of the origin for the model.
Section Properties
Areas drop-down list. SAP2000 will suggest a section property for the areas in this drop-down list. The section property will apply to all of the areas.
TIP: Click the + (plus) symbol next to the drop-down list to access the Area Sections form; use that form to add, modify or delete an area section definition. The Assign menu > Areas > Area Sections command can be used to change the section property later, if needed.
Restraints check box. When this check box is checked, SAP2000 will assign default restraints to each point at the base of the model.
Gridlines check box. When this check box is checked, the model will display with grid lines when the OK button is clicked. Uncheck this check box to turn off the grid lines. The View menu > Show Grids command also can be used to turn the grid lines on or off after the model has been initiated.
Access the Shells form as follows:
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