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Course Outline
Design Criteria and Loads
- Design philosophies
- Codes and standards
- Wind and ice loads
- Longitudinal loads
- Concepts of wind and weight spans
Behavior of Suspended Cables
- Basic sag and slack equations
- Ruling span concept
- Offset clipping
- Interaction between structures and cables
Loading Tree
Conductor Design and Behavior
- Conductor types
- Creep and permanent elongation
- Sag-tension calculations
- High-temperature effects
- Current vs. temperature relationships
- Vibration and galloping
Basic Structure Spotting
- Strength considerations
- Clearance requirements
Computer Analysis and Design Tools
- PLS-CADD/LITE
- 3-dimensional line modeling
- Examples
Design of Wood Poles
Unguyed and guyed
Design of Tubular Steel Poles
Design of Concrete Poles
Design of Wood H-Frames
Line Assessment and Upgrading Concepts
- Assessing existing capability
- Elevated temperature operation
- Re-tensioning/re-sagging
- Pole joint use issues
- Structural analysis for upgrading/reconductoring
Case Studies
Design of Steel Latticed Towers
- Tower configurations
- Modeling for analysis
- Detailed design criteria
- Examples
Foundations
- How to specify, analyze, and use soil investigations
- Types of foundations
Foundations for Single Poles
Analysis and design methods
Examples
Foundations for Frames and Towers
- Factors influencing type of foundations
- Analysis and design methods
- Examples