Circular Tube Lattice Column

Circular Tube Lattice Column – High-Performance Structural Solution for Heavy Engineering

When your project demands maximum strength with minimal weight, the Circular Tube Lattice Column delivers unmatched structural efficiency. Engineered by Shenyang Zhongda Steel Structure, this advanced solution combines ASTM A500 seamless steel pipes (Ø114–508mm, wall thickness 5–30mm) with precision-welded bracing systems. Our columns achieve compressive strength ≥345MPa while reducing residual stress by 30% through gas-shielded welding technology. Backed by 80,000-ton annual production capacity and ±0.1mm CNC drilling precision across our 75,000m² facility, we've delivered 60+ landmark projects since 2004. From ultra-high voltage towers to offshore platforms, our ISO-certified manufacturing ensures your vertical load-bearing challenges are solved with engineering excellence and delivery reliability—in-stock components ship within 3 days.

Product Description

The Circular Tube Lattice Column is a spatial truss-style vertical support that solves critical pain points in modern construction.

Unlike solid columns, it distributes material away from the centroidal axis. This creates exceptional radius of gyration and flexural rigidity in all directions.

You get uniform load distribution without the "weak axis" problem of traditional I-beams.

Our design uses circular hollow sections as main chords. Diagonal and horizontal bracing members connect them into a cohesive structural system.

This configuration gives you:

· Higher strength-to-weight ratios

· Better wind resistance (drag coefficient 0.6–1.2)

· Superior torsional rigidity

· Optimized material utilization

The circular profile naturally sheds wind and water flow. That makes it perfect for coastal environments and offshore applications.

You'll find these columns supporting airport terminals spanning 100+ meters, transmission towers in extreme weather zones, and oil platform jackets resisting hydrodynamic forces.

 

Circular Tube Lattice Columns

 

Product Advantages

1. Engineering Efficiency That Saves You Money

Our columns maximize load capacity while minimizing steel consumption. You get 20–30% weight reduction compared to solid sections—cutting both material and foundation costs.

2. Superior Corrosion Protection

API 5L anti-corrosion treatment protects your investment in chemical plants and coastal areas. Optional hot-dip galvanization adds a metallurgical zinc bond for decades of maintenance-free service.

3. Precision Manufacturing Quality

Gas-shielded welding reduces residual stress by 30%. Our 3-axis CNC drilling systems maintain ±0.1mm tolerance, ensuring perfect bolt-hole alignment during field assembly.

4. Aerodynamic Performance

The circular profile reduces wind load by up to 40% versus square sections. That means lighter foundations and lower structural costs for tall structures.

5. Omni-Directional Strength

Isotropic moment of inertia eliminates orientation concerns. Your structure performs consistently under loads from any direction.

6. Fast Project Delivery

In-stock standard components ship within 3 days. Custom fabrications complete in 25 days thanks to our automated production lines and 50-ton crane capacity.

7. Flexible Customization

We process ultra-thick plates up to 300mm and handle complex 3D geometries. Flange connection nodes simplify on-site assembly for your construction teams.

Specifications & Customization

Manufacturing & Quality Control

World-Class Production Infrastructure

Our 120,000m² facility in Shenyang houses advanced equipment that ensures every Circular Tube Lattice Column meets international standards:

· CNC Cutting Systems: Process ultra-thick plates with clean edges and zero thermal distortion

· 3-Axis CNC Drilling: ±0.1mm precision eliminates on-site rectification work

· Automated Welding Lines: Gas-shielded technology reduces defects and residual stress

· 1200-Ton Plate Rolling: Creates perfect circular sections from flat steel

Rigorous Quality Inspection

We don't ship until every component passes strict testing:

1. Ultrasonic Testing (UT): Detects internal weld defects down to 1mm

2. Magnetic Particle Inspection (MPI): Identifies surface cracks before they become failures

3. Dimensional Verification: Laser trackers confirm verticality and alignment

4. Coating Thickness Analysis: Electromagnetic gauges validate galvanization per ASTM A123

5. Trial Assembly: Pre-fit components in our workshop to guarantee field compatibility

Certified Management Systems

· ISO 9001:2015 (Quality Management)

· ISO 14001:2015 (Environmental Management)

· ISO 45001:2018 (Occupational Health & Safety)

· Class I Steel Structure Professional Contracting Qualification

Our inspection team provides full documentation: Material Test Certificates (MTC), NDT reports, and English technical drawings for international projects.

Project Cases

Case 1: Shenyang Dongta Cross-Hunhe River Bridge

We fabricated 18,000 tons of structural steel for this landmark cable-stayed bridge. Lattice columns support the main tower, resisting complex load combinations from traffic, wind, and seismic activity. The project required ultra-thick plate processing and millimeter-level assembly precision—completed on schedule with zero quality incidents.

Case 2: Jingha Expressway Expansion

Our columns formed the structural backbone of elevated sections across 60+ kilometers. The design minimized foundation excavation in soft soil conditions while meeting strict highway clearance requirements. Prefabricated components reduced on-site construction time by 40%.

Case 3: Industrial Power Transmission Towers

Ultra-high voltage (UHV) towers in northeastern China utilize our lattice columns to support transmission lines across mountainous terrain. The circular profile withstands extreme ice loads and wind gusts exceeding 40 m/s, ensuring grid stability during harsh winter conditions.

 

 

Compliance & Certifications

We manufacture to global standards so your project meets local regulations anywhere:

Material Compliance:

· ASTM A500 (North America)

· EN 10219 (European Union)

· JIS G3444 (Japan)

Fabrication Standards:

· EN 1090-2 (Execution of Steel Structures)

· AWS D1.1 (Structural Welding Code)

· AISC 360-16 (Specification for Structural Steel Buildings)

Corrosion Protection:

· ASTM A123 (Hot-Dip Galvanizing)

· API 5L (Pipeline Anti-Corrosion)

· ISO 12944 (Corrosivity Categories C4-C5)

As a National High-Tech Enterprise and member of the China Steel Structure Association, we participate in industry standard formulation. Our engineering team collaborates with leading design institutes to ensure compliance with evolving codes.

Frequently Asked Questions

Q1: What's the maximum height you can manufacture for a single lattice column?

We produce segments up to 18 meters in our facility. For taller structures, we design bolted flange connections that allow field assembly of unlimited heights while maintaining structural integrity.

Q2: How do you ensure dimensional accuracy for complex 3D geometries?

Our BIM-based design workflow feeds directly into CNC machines. We use laser trackers during fabrication and perform trial assemblies in our workshop. This eliminates the "it doesn't fit" problem on your construction site.

Q3: Can lattice columns be filled with concrete for added strength?

Absolutely. Concrete-filled tubular (CFT) configurations enhance compressive strength and fire resistance. We provide internal connectors and drainage holes as part of the design.

Q4: What's the typical lead time for international orders?

Standard components ship within 3 days. Custom projects require 25 days for fabrication plus shipping time. We coordinate with freight forwarders to optimize delivery schedules and provide full export documentation.

Q5: How does your pricing compare to solid columns?

Lattice columns cost 15–20% more per ton but use 30% less steel for equivalent load capacity. Your total project cost typically drops 10–15% when you factor in lighter foundations and faster installation.

Q6: Do you provide installation guidance?

Yes. We supply detailed assembly drawings, bolt torque specifications, and can dispatch technical advisors to your site for critical lifts and connections.

Contact Us

Ready to optimize your next project with engineered efficiency via custom Circular Tube Lattice Columns? Our technical team is standing by to discuss your specific requirements.

Email: Ava@zd-steels.com