Selecting the Pan

From the Pan List, select the pan to be used to generate the pan joist beams. This list is generated from the pan joist table selected in the RAM Manager Criteria - Concrete Tables command.

Cracked Factor

An Axial, Flexural, or Torsion cracked section factor can be specified for the pan section in the edit boxes of the Cracked Section Factor section. These values reduce the section axial, flexural (moment of inertia) and torsional stiffness of the member for analysis purposes in RAM Frame and RAM Concrete Gravity Analysis. The specified cracked section factor is multiplied directly against the associated gross section property (Area, Moment of Inertia and Torsion Stiffness respectively) to determine the stiffness value used for the analysis. A value of 1.0 for any of these factors will result in the full gross section stiffness property being applied.

Graphics Mode Options

1. Type the desired beam width for generated beams in the Interior Beam Width Fixed at edit box.
2. If an odd pan size is necessary for the selected beam line, indicate whether it should be placed at the Last Pan location or the Second to Last Pan location. Select the Second to Last Pan location option to ensure that the last beam in the beam line has the largest possible flange width.
3. If an odd pan size is necessary for the selected beam line, and another pan in the pan list (with the same depth as the selected pan) will fit, checking the option to Automatically use Pan from Pan List for odd-size pan, if available will automatically use the alternate pan without issuing a warning. If this checkbox is not selected, a warning will be issued and the user will have an option to use that pan or cancel the pan joist generation.

Beam Orientation

There are two options for specifying the new beam orientations.

1. Select the frame of reference from which the Angle will be measured by clicking either the Relative to Selected Beam Line or the Relative to X-Axis option button.
2. Type the angle between the reference beam line or the positive X-Axis and the new beams in the Angle From Beam Line edit box (between 0 and 90).

Adding the Beams

1. Click the Add button. The dialog box will disappear and the RAM Modeler will enter the Add Pan Joist/Beam Generation Layout Mode.
2. Select a line of adjacent beams to define one end of the new beams to be generated. To do this, click on one end of a beam line, move the mouse to the other end of the beam line, and click the mouse again. Crosshairs that indicate the angle will appear. Note that for this command it is not necessary to start or end the reference line at beam ends; any intermediate points along the beam line can be used.
3. Click in the quadrant for the new beams to be added. The closest intersection of each new beam with an existing member in the selected direction will form the second end of the generated beams.

Return to the Add Concrete Pan Joist/Beam Generation Mode dialog box with the Right Mouse Button or the <D> key.

Return to the Layout - Beams menu with the <M> key.

Clicking the Cancel button or selecting any other RAM Modeler Layout command will end the Layout - Beams - Add Pan Joist/Beam command.