Transmission Tower Parametric Model

This application creates a parametric model for a transmission tower in STAAD.PRO. The model is built in three steps: defining the geometry, assigning loads, and reviewing results.

Step 1 - Geometry

• Overview:
  The application generates the geometry of the transmission tower. It defines the main components such as the skirt, top body, crown, and arms.

• Details:

  • Skirt:
    • Sets parameters such as skirt height, width, number of sections, and inclination angle.
    • Allows the user to control the base geometry of the tower.
  • Top Body:
    • Defines the top body's height and the number of sections.
    • The width is calculated based on the skirt's inclination angle and height.
  • Crown:
    • Inputs for crown height and the number of divisions.
  • Arms:
    • Uses a dynamic array to define multiple pairs of arms.
    • Each pair has a specified length.

Step 2 - Loads

• Overview:
  The application collects load information that will be applied to the tower model. Loads are defined for different cases following AS/NZS 7000:2016 guidelines.

• Details:

  • Load Cases:
    • Conductor Dead Load: Loads that represent the permanent weight.
    • Conductor (Tension) under No Wind Load: Loads applied under static conditions.
    • Conductor (Tension) under Wind Load: Loads representing wind effects.
  • Input Fields for Each Load Type:
    • Node Selection: Allows the user to select one or more nodes.
    • Direction: Specifies the direction of the load (e.g., X+, Y-, etc.).
    • Magnitude: Defines the load value in kilonewtons.
    • Color: Sets the visualization color for the load.
    • Render Option: Indicates whether the load should be displayed in the geometry view.

Step 3 - Results

• Overview:
  The application displays the internal axial loads in the transmission tower based on a chosen load combination.

• Details:

  • Load Combination Selection:
    The user selects a predefined load combination from a list of options.
  • Visualization:
    Once a load combination is chosen, the application updates the 3D view to show the internal axial loads in each member of the tower.

Reference

The connection between the app and STAAD.PRO is made with a Worker, an executable that connects a server and a computer with STAAD.PRO to the web app. You can refer to the following tutorial to learn how to set up the connection:
STAAD.PRO Integration Tutorial