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Performing Operational Clash Detection

Clash Detection Workflow

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Open AutoPIPE Model

Open Model “PIPMALL1A_STR_FINAL_V94_SMALL_Z.DAT”

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Analyze for Gravity, thermal, 4 seis

mic loadings

Load > Static Analysis Sets

Analyze > Static

Any of the AutoPIPE non-code combinations can be displayed on screen and exported to Bentley Navigator for

check Clash detection

Tools > Combinations (Select non-code combinations)

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Generate an output report to determine areas of maximum displacement

Result > Output Report

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Check the maximum displacements in X, Y, Z directions as possible areas of clashes

View displacement plot at point C12F for GRT1E3{1} load combination

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High DY displacement = -4.214” in at C12F (Possible clash between 2 pipes)

Export to DGN using (File > Export > DGN Model (*.dgn)) Hint: Show the insulation defined in the model (View > Show Options > Pipe Insulation) to include the additional

thickness when exporting for clash detection.

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Select ‘Deflected Model Graphics’ and choose the GRT1E3{1} load combination

DGN file is created in same folder as the DAT model file

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Open DGN model in Navigator and Perform Clash Detection Microstation or Navigator can be used to run clash detection

Open Navigator and Select DGN Model “PIPMALL1A_STR_FINAL_V94_SMALL_Z.dgn”

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Run the CLASH detection

Define a new job called “Clash1”

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Job > Advanced Settings

Criteria TAB and Select “Levels” Task

Click on 2 levels

“SEG_C_STRESS_MESH_DEFLECTED” and “SEG_D_STRESS_MESH_DEFLECTED”

And drag to Set A box

Note: Alternatively, select the items from the Plant model you want to clash with, e.g. Structure, Equipment,

etc., and add them to Set A (Red). The deflected AutoPIPE piping models can be selected for Set B (Blue) from

the referenced-in stress models.

Select the “Self check”

Under Rules, define a new Rule “Suppress clashes within the same level” i.e. on same segment or line number

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Click “Process” button

Five (5) hard clashes are found

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To Create a Clash Markup Create a markup for clash 2, click on the markup icon

A Markup name “Clash2_Clash1” is created

Or click the Task “Create Clash Markup”

Select from the menu Review > Markup > Markups dialog

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Add a new comment

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Double click the “Clash2_Clash1” row to redline the markup

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Click the “Print to PDF” button to create a markup PDF