Lattice Steel Columns for Heavy Industrial Buildings

A lattice steel column is a built-up vertical compression member in which slender chords - angles, channels, round tubes or small H-sections - are held apart by lacing bars or batten plates to form an open, truss-like cross-section. By placing the steel far from the neutral axis of the column, a lattice section achieves a much larger moment of inertia per tonne than a solid column of equal weight, so it carries heavy axial and lateral loads with outstanding load-bearing capacity and lateral stability while using significantly less material.

We fabricate single-axis or double-axis symmetrical lattice columns - rectangular, square or triangular layouts - in Q235B, Q355B, Q355D and Q460 grades with welded or high-strength-bolted nodes, supplied as 3–30 m segments for transport and site assembly into transmission towers, heavy-duty crane columns, high-clearance industrial plants and large-span arenas.

 Overall buckling about two axes - checked about the solid (x-x) axis and the imaginary (y-y) axis, whichever controls.

 Chord local buckling - each limb verified between conterminous lacing/batten points.

 Lacing & batten shear - design transverse shear ≈ 2.5% of axial load, distributed among laces (40–70°) or battens opposite at stayed points.

 Effective-length rule - battened columns get ~+10% effective length for the slightly lower chord restraint.

 Stiffness economy - larger chord spacing gives more moment of inertia, balanced against connector weight/fabrication cost.

 Applicable design standards - GB 50017 · EN 1993-1-1 / ESDEP · AISC 360.

1.Easy Transportation & Installation

It is 25% to 35% lighter than solid steel columns. Modular lattice components are prefabricated off-site and assembled quickly with bolt connections. This greatly cuts on-site labour and equipment requirements, and reduces transportation costs by 15% to 20%.

2.High Load-Bearing Capacity

Adopting truss structure design, all components feature excellent compression, bending and shear resistance, enabling the column to withstand large axial and lateral forces.

3.Steel Material Saving

Compared with solid steel columns such as H-section columns, lattice columns with intermediate trusses distribute stress more reasonably. They maintain equivalent load capacity while consuming less steel.

4.High Rigidity & Stability

Well-designed joints improve the overall flexural rigidity and lateral stability of the structure.

Transmission Towers: Support columns for power lines.

Communication Masts: Towers for radio, television and mobile network systems.

Industrial Buildings: Support for long-span roofs of factory facilities.

Bridges: Truss piers for railway bridges and pedestrian bridges.

Cranes: Main column supports for gantry cranes and tower cranes.

FAQ:

When should I choose a lattice column over a solid H-section or pipe column?

Choose lattice when the column is tall and compression moderate: placing material in chords away from the neutral axis gives a far larger moment of inertia per tonne, so long, lightly-loaded columns carry more buckling load than a solid section of equal weight. Choose solid H/pipe for short, heavily-loaded columns.

What is the difference between a laced column and a battened column?

A laced column uses single/double diagonal lacing bars (typically 40–70°) to carry transverse shear economically; a battened column uses batten plates opposite at stayed points, proportioned uniformly. Lacing is usually more material-efficient; battens give a cleaner, more rigid appearance.

How is the lateral stiffness of a lattice column checked?

Overall buckling is checked about both solid and imaginary axes plus local chord buckling; design transverse shear is ~2.5% of axial load; the effective length of battened columns is increased ~10%. We issue the unity-check calculation with the drawing.

Can a long lattice column be delivered in transportable segments?

Yes - single segments up to ~30 m; taller columns split into bolted/welded splice segments fitting transport limits, with splice plates and flanges supplied and assembled on site at design splice points.

What corrosion or fire protection suits a lattice column?

Three-coat paint, hot-dip galvanizing (telecom/transmission, outdoor), zinc spraying, or intumescent fire-resistant coating chosen to environment and code, with DFT records and MTC.

Do you provide full design documentation and third-party inspection?

Yes - shop and calculation drawings, MTC, welding/NDT reports and coating records, with SGS / BV / TÜV third-party inspection on request.