Creating and Modifying Panels A Worked Example

This worked example uses the equipment rack created in previous exercises. It demonstrates the creation and modification of a panel.

7.7.1 Creating the Panel

• Enter the Panels & Plates application by selecting Design>Structures>Panels & Plates… from the main menu. Clear the Draw List and add back the /EQUIP_SUPPORT structure. Set the limits to the Draw List and view direction to Iso 3.

• Create a SBFR named EL(+)107820_TOS_PLATE owned by FRMW EL(+)107820_TOS. Make the SBFR the CE and set the Storage Areas by clicking the appropriate buttons on the Panels & Plates toolbar. Select Create>Panel… from the main menu to display the Create Panel form and enter 20 in the Thickness textbox and select Bottom from the Justification options list. Leave the Representation settings at their defaults.

• Make sure the Pline rule is set to Normal and click the Derive points from graphic picks button in the Create Methods area of the form.

Set the Positioning Control toolbar to Pline and Intersect. Zoom into the top of column F3 and select the outer top of steel (LTOS or RTOS) Plines of the two connecting beams (not the cantilever beam).

A text aid will be displayed at the intersection of the Plines showing the Origin of the panel.

Note that the message on the form now reads: 1 Vertices defined (no Panel created).

• Pan the view to the top of column C3 and again select the outer top of steel (LTOS or RTOS) Plines of the two connecting beams.

Another text aid will be displayed at the intersection of these Plines at the position of the new vertex.

Note that the message on the form now reads: 2 Vertices defined (no Panel created).

• Pan the view to the top of column C4 and again select the outer top of steel (LTOS or RTOS) Plines of the two connecting beams (not the stair landing beam).

Another text aid will be displayed at the intersection of these Plines at the position of the new vertex.

Note that the message on the form now reads: 3 Vertices defined (Panel created).

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pick the outside TOS Pline on the stair landing cantilevered beam near to its connection with the column.

Note that the message on the form now reads: 4 Vertices defined (Panel created).

Pick the same Pline at the far end of the beam.

• Pick the outside TOS Pline on the far end of the other stair landing cantilevered beam.

Change the Positioning Control settings back to Pline and Intersect and press the F8 key to display the 3D View in wire-line. This is because the sections are obscured by the panel.

Pick the outside TOS Pline on the stair landing cantilevered beam and the outside TOS Pline of the beam between column C4 and D4. Press the F8 key again.

• Finish the panel by panning to the top of column F4 and selecting the outside TOS Plines on the two connecting beams (not the cantilever beam). Click the OK button on the Panel Creation form to create the panel.

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7.7.2 Modifying the Panel

The panel requires modification to create cut-outs in the panel edge around the columns. This is achieved by introducing new vertices into the loop.

• Make sure the panel is the CE and select Modify>Extrusion/Panel… from the main menu to display the Loop Vertex Editor form. Note that an axis aid, showing the axes with respect to the panel, is placed at Vertex 1, the panel origin. First new vertices will be added to the PLOO to make a cut-out around the top of column F3. Zoom into the top of column F3.

• Change the Positioning Control toolbar settings to Pline and Snap and press the F8 key to change the 3D View to wire-line. Make sure the Vertex counter is on 1 and the co-ordinates are X 0 and Y 0. The first new vertex is to be positioned between vertex 1 and vertex 2 and will have the same X co-ordinate as vertex 1.

• Click the Create points button and note that the Modify button at the bottom of the form has changed to the Create button, i.e. the form is now in Create mode. Click the X checkbox to lock the co-ordinate and pick the Pline on the north-west corner of column F3. A New vertex label is displayed at the new vertex position. Click the Create button on the form to create a new vertex 2.

• Rewind the vertex counter to vertex 8, i.e. the last vertex in the loop. Uncheck the X checkbox and check the Y checkbox. Pick the Pline on the south-east corner of column F3. A New vertex label is displayed at the new vertex position. Click the Create button on the form to create a new vertex 9. • Vertex 1 needs to be moved to a new location. Click the Select point to modify button in the Mode

Selection area of the form and select vertex 1. Note that the vertex counter is set to 1 and the Create button has changed to the Modify button, i.e. the form is now in Modify mode. Uncheck the Y checkbox and select the Pline on the north-east corner of column F3. A New position text displays the new position for vertex 1. Click the Modify button to move vertex 1 to its new location.

• Similar cut-outs need to be made around column E3. Set the vertex counter to 2, check the X checkbox and click the Create points button. Pick the Pline on the south-west corner of column E3 and click the

Create button to create the new vertex 3. Uncheck the X checkbox and check the Y checkbox. Press the F8 key and pick the Pline on the south-east corner of column E3. Click the Create button to create new vertex 4. Uncheck the Y checkbox and check the X checkbox. Pick the Pline on the north-east corner of column E3 and click the Create button to create new vertex 5. Uncheck the X checkbox and check the Y checkbox. Pick the outside TOS Pline on the beam between column E3 and D3 and click the Create button to create the new vertex 6.

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7.7.3 Using a Vertex Group

Column D3, D4 and E4 require similar cut-outs to column E3. This may be achieved by creating a group of the vertices that form the cut-out around column E3 and moving it to the correct location before inserting it into the loop.

• Rewind the vertex counter to 2. Click the Select group to modify button in the Mode Selection area of the form to display the prompt ‘Pick points <escape> to select’ in the prompt area. Graphically pick four points, in a clockwise direction around the cut-out at the top of column E3 and press the Esc key. The group will be defined by four spheres, one at each of the four vertices that form the cut-out with a larger sphere at the first vertex on the group, i.e. the group origin.

• The group must be moved to column D3. Check the X checkbox and uncheck the Y checkbox. Pick the Pline on the south-west corner of column D3. The group moves such that its origin is on the edge of the panel and aligned with the corner of the column. Set the vertex counter to 6 and click the Insert

selected button in the Modify area of the form to insert the group into the loop and create the cut-out.

• Change the Positioning Control toolbar settings to Graphics and Snap, uncheck the X checkbox and check the Y checkbox. Pick the panel edge on the east side of the structure, adjacent to column D4. The group is now located correctly at column D4, however, the order of the vertices in the group must be reversed to fit the clockwise numbering sequence and the group must be mirrored to form a cut-out and not an outstand.

• Click the Reverse group definition button in the Definition area of the form. Note the group origin has been placed on the north side of the group. Click the Mirror button in the Modify area of the form to display the ‘Pick line to mirror about’ prompt and graphically pick the edge of the panel. The group is mirrored to form the correct sequence of vertices for a cut-out. Set the vertex counter to 16, i.e. the vertex before the group origin and click the Insert selected button to insert the group into the loop.

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check the X checkbox. Pick the Pline on the north-east corner of column E4 to move the group. Set the vertex counter to 20 and click the Insert selected button to create the cut-out around the top of column E4.

• Create cut-outs around the tops of columns C3, C4 and F4.

• Click the Select All button in the Mode Selection area of the form. Enter 10 in the textbox in the Expand/Contract area of the form and click the Contract group button. Note that the vertex indicators move to their new positions. Click the Modify button to contract the whole loop by 10mm.

AVEVA Plant (12 Series) Structural Modelling (Basic) TM-1101

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