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Moving Load Vehicle

A nested class within MovingLoad used to create and manage standard vehicle loads for moving load analysis according to country-specific design codes.

Constructor

The main Vehicle class is not intended for direct use. Instead, use one of the country-specific subclasses.

Country-Specific Subclasses

India

MovingLoad.Vehicle.India(name, standard_code, vehicle_type, vehicle_name=None, id=None)

Creates a vehicle load according to Indian Road Congress (IRC) or Indian Railway Standards (IRS).

Parameters

  • name (str): A unique name for the vehicle load.
  • standard_code (str): The standard code to use. Available options are "IRC"& "IRS"
  • vehicle_type (str): The specific type of vehicle.
    • For "IRC": "Class A", "Class B", "Class 70R", "Class 40R", "Class AA","Footway".
    • For "IRS": "BG-1676", "MG-1000", "NG-762", "HML", "FTB".
  • vehicle_name (int, optional): A 1-based index required for the "IRS" standard to select a specific vehicle from a list. For example, for vehicle_type="BG-1676", vehicle_name=1 selects "Modified B.G. Loading 1987-1".
  • id (int, optional): A unique integer ID for the vehicle. If None, it is auto-assigned.

Eurocode

MovingLoad.Vehicle.Eurocode(name, standard_code, vehicle_type, vehicle_name=None, id=None)

Creates a vehicle load according to Eurocode standards.

Parameters

  • name (str): A unique name for the vehicle load.
  • standard_code (str): The Eurocode category. Available options are "RoadBridge", "FTB" (Footbridge), "RoadBridgeFatigue", and "RailTraffic".
  • vehicle_type (str): The specific load model or type (e.g., "Load Model 1", "Load Model 3").
  • vehicle_name (int, optional): A 1-based index required for vehicle types with a selectable list, such as "Load Model 3" or "HSLM A1 ~ HSLM A10".
  • id (int, optional): A unique integer ID for the vehicle. If None, it is auto-assigned.

Class Methods

json

Returns a JSON representation of all defined vehicle objects.

# Define a vehicle
MovingLoad.Vehicle.India(
    name="IRC_Class_A", 
    standard_code="IRC", 
    vehicle_type="Class A"
)
# Get JSON representation
vehicle_json = MovingLoad.Vehicle.json()
print(vehicle_json)

create

Retrieves all lane data from Civil NX.

# Define vehicles first
MovingLoad.Vehicle.India(name="IRC_Class_A", standard_code="IRC", vehicle_type="Class A")

# Create the vehicles in the Midas model
MovingLoad.Vehicle.create()

get

Retrieves all lane data from Civil NX.

vehicle_data = MovingLoad.Vehicle.get()
print(vehicle_data)

sync

Synchronizes Vehicle data from Civil NX to Python objects.

# Syncs vehicles from the model into the script's memory
MovingLoad.Vehicle.sync()

# Display the names of synced vehicles
for vehicle in MovingLoad.Vehicle.vehicles:
    print(f"Synced Vehicle: {vehicle.name}")

delete

Deletes all vehicle from both Python and Civil NX.

# Delete all vehicles in the model
MovingLoad.Vehicle.delete()

Examples

Creating As per Indian Standard

# Set the moving load code to India
MovingLoad.Code("INDIA")

# Define an IRC Class 70R vehicle
MovingLoad.Vehicle.India(
    name="IRC_70R_Wheeled",
    standard_code="IRC",
    vehicle_type="Class 70R"
)

# Create the vehicle in Midas Civil
MovingLoad.Vehicle.create()

Creating As Per Eurocode

# Set the moving load code to Eurocode
MovingLoad.Code("EUROCODE")

# Define a Eurocode Load Model 1
MovingLoad.Vehicle.Eurocode(
    name="EC_Load_Model_1",
    standard_code="RoadBridge",
    vehicle_type="Load Model 1"
)

# Create the vehicle in Midas Civil
MovingLoad.Vehicle.create()