pathfinder 疏散软件入门教程 stairwell_with_elevator_example

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Stairwell with Elevator Example

Pathfinder 2011

Stairwell with Elevator Example

In this example, we will start with the stairwell example and then add an elevator.

Open the File:

1. On the File menu, click Open.

2. Navigate to the directory where examples are stored. By default this will be C:\\Program

Files\\Pathfinder 2011\\Examples.

3. Select multi-floor-stairwell.pth, then click Open. 4. On the File menu, select Save As…

5. Save the model to a new folder on your computer and name the file multi-floor-stairwell_elevator.pth.

Figure 1: Stairwell model

Add Elevator

To add the elevator:

1. 2. 3. 4. 5.

In the Tree View, right-click Floor 0.0 m and click Set as Active Floor. Click the Top View.

Click the Add a Rectangular Room tool and add a 2.0 by 3.0 m room, Figure 2. Click the Door tool and add a 2.0 m door to the elevator room, Figure 2.

Right-click the room and click Create Elevator…, then click OK. The elevator will be drawn as a semi-transparent boundary, with rooms at each floor, Figure 3.

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Figure 2: Adding a room and door that will become an elevator

Figure 3: After adding the elevator

Add Elevator Behavior

Create a behavior to use the elevator:

1. 2. 3. 4.

In the Tree View, right-click Behaviors and click Add a Behavior. Enter the name Elevator and click OK.

With the Elevator behavior selected, click the options and select Add GoTo Elevators. Click Create.

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Modify Occupant Behaviors to Include Elevator

We will now change the occupants so that some of the occupants will use the elevator and some the exits or stairwell.

1. In the Tree View, right-click Occupants and click Delete… . Click Yes to remove all occupants. 2. Right-click the bottom floor and click Add Occupants.

3. Click the Behavior and edit it so that 100% of the occupants use the Goto Any Exit behavior,

Figure 4. Click OK.

4. Add 50 occupants and click OK.

5. Repeat for the second floor, but with 20% of the occupants using the Elevator and 80% using

Goto Any Exit.

6. Repeat for the third floor with 40% Elevator and 60% Goto Any Exit. 7. Repeat for the fourth floor with 60% Elevator and 40% Goto Any Exit. 8. Repeat for the fourth floor with 80% Elevator and 20% Goto Any Exit.

Figure 4: Edit the assignment of behaviors on the bottom floor

Set Elevator Floor Priority

We will now modify the occupants so that some of the occupants will use the elevator and some the exits or stairwell.

1. In the Tree View, click Elevators. 2. In the panel, click the Floor Priority.

3. Reorganize, so that the floor priority order for evacuation by elevators is the third, fourth, fifth,

and second floors, Figure 5.

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Figure 5: Set elevator floor priority

Run Simulation

To run the simulation:

1. Save your model.

2. On the toolbar, click Run Simulation (

).

View Results

When the simulation is finished, the 3D Pathfinder results window will display. To view results:

1. Click the Play button. This will display the occupants as cylinders with their direction indicated

by a triangle.

2. At any time click the Pause or Stop button. You can drag the time line to control the animation. 3. To view occupants as people, click the Stop button, on the Agents menu, click Show as People,

then click the Play button, Figure 6. Detailed information for each room is provided in comma-separated value (CSV) files that can be imported to a spreadsheet.

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Figure 6: The 3D results showing elevator and stairwell evacuation

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