Transmission Tower Design for 230-kV Power Line with bocad (Bangladesh)
CUSTOMER
Global Steel and Engineering Ltd. (GSEL)
PROJECT
CHALLENGES
Builder
Power Grid Bangladesh PLC
Tower Types
• River Crossing Tower – 2DRQ
• Anchor Tower – 2DAXQ
Route: Hathazari–Sikalbaha & Hathazari–Rampur
This project demonstrates how complex transmission towers for a 230-kV power line were designed and detailed using bocad, including large-span river crossing structures.
Varying load conditions, high quality requirements and tight timelines demanded a reliable and efficient engineering workflow.
Challenge
The project required accurate 3D modeling of steel structures and steel detailing for transmission towers of complex tower geometries under different load scenarios while maintaining strict adherence to project specifications and international standards. In particular, the river crossing towers introduced additional structural and coordination challenges.
At the same time, large volumes of structural data had to be processed consistently. Ensuring efficient coordination between engineering and production, minimizing fabrication errors, and optimizing the design for manufacturability within tight deadlines added to the overall complexity of the project.
ADVANTAGES
Solution
With bocad, the project team developed precise, fabrication-ready 3D models for all tower types. The software enabled consistent detailing, efficient handling of complex geometries and large data sets, and the creation of clear, detailed drawings to support seamless collaboration between design and production.
By leveraging advanced software features, the team ensured both accuracy and efficiency throughout the entire engineering process.
Benefits
• Reduced detailing and fabrication errors
• Reliable data for production and assembly
• Clear, detailed drawings for improved communication
• Improved coordination between engineering and fabrication
• Enhanced productivity across the project workflow
• Optimized material usage through accurate modeling
• Ensured compliance with relevant industry standards
• On-time project execution despite high complexity
• Overall cost-effectiveness, especially for recurring project requirements
The high level of detail and data consistency ensured a smooth transition from design to fabrication and supported efficient on-site assembly, particularly for the river crossing structures.
Customer Statement
“Designing and delivering complex transmission towers for this project, particularly the river crossing structures, required precise coordination between engineering and fabrication under tight timelines. The approach helped minimize errors and ensured reliable execution from design through to fabrication.”
Aminul Islam Sohel, Asst. Manager (Design & Drawing), GSEL
The project highlights how bocad supports efficient transmission tower design, accurate steel detailing, and reliable data for fabrication.