Course Information: 3 credits. Advanced structures, foundation testing and design, thermal conductor ratings, sag and tension calculation, survey methods. This course further develops the strategies that were learned in the Introduction course and introduces advanced concepts for designing transmission lines.
Course Description/Objectives:
 Week Zero: Introduction to Blackboard tools
 Week 1: Guyed Structures
 Week 2: Lattice Towers
 Week 3: Steel Poles
 Week 4: Foundations (soil properties, foundations under compression)
 Week 5: Foundations (under lateral load, under uplift)
 Week 6: Advanced Sag and Tension
 Week 7: Special Problems in Sag and Tension
 Week 8: LiDAR Survey Technology, Thermal Ratings
As exercises students will be given data on a line segment and will be required to compute the conductor temperature, do a clearance assessment, and be given a task of upgrading the line to a greater MVA rating using the several techniques presented.
Module Descriptions:
Module 1: Sag & Tension & LiDAR Survey Technology (2 weeks)
Week 1: Special problems in Sag and Tension
 Derivation of the Catenary Hyperbolic equation
 Calculation of conductor tension with survey points.
 Adding / changing a structure.
 Adding / removing conductor.
 Moving structures.
Week 2: Advanced Sag and Tension, Thermal Ratings, LiDAR Survey
 Actual sag and tension behavior.
 Thermal Ampacity Ratings of Transmission Lines
 Upgrading of Transmission Lines
 LiDAR Survey Technology
Module 2: Structures (3 weeks)
Weeks 3 & 4: Lattice Towers
 Introduction to lattice towers, anatomy of tower geometry
 Lattice tower families
 Analysis of truss members, two dimensional and three dimensional, Matrix methods of analysis, Tower analysis details with Software, Illustrated Examples
 Buckling capacity of compression members, Euler's Theory, Buckling modes
 Compression capacity of angle members, Global and local buckling, K factors, ASCE 1097 code, Illustrated examples
 Tension capacity of angle members, ASCE 1097 code, Illustrated examples
 Connection capacity under shear and bearing, ASCE 1097 code, Illustrated examples
 Other design considerations, ASCE 1097 code, Tower weight calculations, Tower testing, Analysis of existing lattice towers
Weeks 4 &5: Poles
 Analysis and Design of wood poles, NESC code requirements, Illustrated examples
 Design of steel poles_polygonal tubular members and round members, ASCE 4805, Illustrated examples
 Design consideration of anchor bolts, Wood equivalent steel poles: Wood vs. steel poles: economic considerations, lifecycle costs
Week 5: Guyed Structures
 Configurations of guyed structures: Single poles (Steel poles, Wood poles), Stub poles, Multipole structures,

Analysis and deign of guyed structures, Compression capacity, Illustrated examples
Module 3: Foundations (3 weeks)
Week 6: Geotechnical Properties
 Methods of determining soil properties: SPT test, Pressuremeter test and other tests, Empirical correlations, Soil boring log interpretation
& Foundations under Compression
 Bearing capacity theories, guidelines for bearing capacity of soils
 Applications: Footings, Grillages, Workedout examples, software and codes
Week 7: Foundations under Lateral load
 Lateral capacity theories: Broms and BrinchHansen theories, Elastic analysis
 Direct Embedment foundations, workedout examples
 Concrete Pier foundations, workedout examples
& Foundations under Uplift
 Uplift capacity theories
 Applications: Hframes, Grillages, Footings, Screw foundations, workedout examples, software and codes
Week 8: Conductors and Conductor Motion
 Conductor StressStrainCreep Chart.
 Conductor Galloping & control.
 Conductor Vibration & control