Power infrastructure

Transmission Towers & River Crossings

Structural design of four-legged free-standing lattice steel anchor and river-crossing towers for the Bangladesh Rural Electrification Board program.

Two complementary tower families

River Crossing Towers: 40 m, 45 m, 50 m, 55 m, 60 m, 65 m and 70 m towers developed for long-span crossings and site-specific wind environments.

Anchor Towers: 25 m and 27 m towers developed across multiple project sites and wind regions.

Normal loadingBroken-wire conditionsConductor forcesWind gust effects

Free-standing lattice steel systems

Representative Design Criteria

Structural System

Four-legged hot-rolled lattice towers with cross arms, bolted members and galvanized steel construction.

Design Environment

Project wind speeds from approximately 160 km/h to 260 km/h, temperature effects, conductor and earth-wire tensions.

Standards

BS 8100, BNBC, BS 4360 steel, BS 729 galvanizing and BS 5135 welding requirements.