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High Load - Bearing Capacity Heavy - Duty Steel Structure Bridge Components
Product Overview
Steel structure products are made from steels like Q235/Q345. They have high strength and weldability.
Cost-effective steel frameworks using Q235 (mild steel) and Q355 (high-strength low alloy) materials, ideal for warehouses, workshops, and medium-rise buildings.
Simplified prefabrication process with hot-rolled sections (H-beams, angles, channels) and bolted connections, enabling fast on-site assembly within 2-4 weeks.
They have high load-bearing, good seismic performance (thanks to steel's ductility), and enhanced fireproof and anti-corrosion with coatings.
Basic anti-rust treatment (sandblasting + red lead primer) ensures 20-year durability for general environments, compliant with GB/T 700 and GB/T 1591 standards.
Product features and advantages
1.Lightweight:
The Self-Weight Is Only 1/3-1/4 Of The Concrete Structure, Reducing The Foundation Cost, Suitable For Long-Span And Super High-Rise Buildings.
2. Earthquake resistance:
Ductile Deformation Ability Is Strong, Can Absorb Seismic Energy, Seismic Fortification Intensity Of More Than 9 Degrees.
3.Construction efficiency:
Factory Prefabrication + On-Site Assembly, The Construction Period Is 40%-60% Shorter Than That Of Concrete, And The Error Control Is Within ±2mm.
4.Environmental protection:
100% Recyclable, Carbon Emissions Reduced By 30%, In Line With The "Double Carbon" Strategy.
5.Labor optimization:
Site Personnel Were Reduced By 40%, And A Bridge Project Reduced Labor Costs By 22% Through Modular Construction.
6.Certification standards:
In Line With LEED, GB/T 50378 Green Building Standards, Enjoy Tax Incentives.
Product specification parameter sheet
Product application scenario display
Steel Structure has diverse application scenarios:
Steel structures, with their high strength, lightweight and green characteristics, are reshaping the modern engineering landscape: in the field of architecture, the 632-meter Shanghai Tower breaks the limits of gravity with a steel frame, and the 340-meter span Bird's Nest Stadium is woven with steel trusses. In the bridge project, the steel box girder cable-stayed structure of the Hong Kong-Zhuhai-Macao Bridge will span the Lingdingyang Bay, and the prefabricated steel components of the light rail viaduct will be assembled for 1 km in 48 hours. In terms of energy infrastructure, the single pile diameter of the offshore wind power tower has exceeded 8 meters, and the weathering steel design of the high-voltage transmission tower has achieved 30 years of maintenance-free.
In the earthquake relief, the collapse rate of steel structure houses rebuilt after the Kobe disaster in Japan is only 1/5 of that of concrete; In the low-carbon field, the annual carbon reduction of photovoltaic bracket integrated steel structure is 2.3 tons/thousand square meters;
Customer service and support
1. Third-Party Supervision + Ultrasonic Inspection, Weld Pass Rate ≥99.5%.
2.International project support: multilingual technical team + localization certification assistance (such as CE, UL certification).
3.Response time: 7×24 hours customer support, emergency response within 30 minutes.
Company introduction and brand strength
Zhuozhan Group takes scientific research, production and trade as one, its Shuangyang metal structure as an industry benchmark, relying on 15 patented technologies and 150 + sets of intelligent equipment, to achieve an annual capacity of 300,000 tons of steel pipe, 1 million tons of scaffolding, and 400,000 tons of adjustable steel support. Products cover more than 30 provinces and are exported to four continents, deep service China Construction, China Railway and other 150 + key enterprises, with "modular prefabrication + global logistics network" to ensure 72 hours of delivery response, annual exports exceeded 20 million US dollars. Through green technology (steel utilization rate 98%) and intelligent production line upgrading (annual production capacity increased by 30% in 2025), the Group continues to consolidate its technological and scale advantages in the field of metal structures, focusing on the Southeast Asian and Middle East markets, and is committed to becoming a global leader in metal building materials solutions.
FAQ
Q1: What are the main materials of steel structure? How to choose different steel types?
A: The main materials are carbon steel (such as Q235B) and low alloy steel (such as Q355B, Q460C).
Q235B: general structure (workshop, support);
Q355B: large-span or heavy-load scenes (Bridges, venues);
Q460C and above: high strength requirements (reduce the amount of steel by 15%-20%).
Q2: How to guarantee the fire resistance of steel structure?
A: Use ultra-thin expansive fireproof paint (thickness 2-3mm), fire resistance limit of 2-3 hours, or use refractory steel (such as GB/T 28905 standard), no additional coating can meet the fire resistance requirements of 1.5 hours.
Q3: How to control the precision of steel structure construction?
A: Factory prefabrication accuracy of ±0.5mm (robot welding), on-site assembly through BIM positioning and laser measurement, the overall error of ≤±2mm, a super high-rise project measured deviation of only 1.2mm.
Q4: Why is the seismic performance of steel structure better than that of concrete?
A: The ductility of steel (elongation ≥20%) is much higher than that of concrete (≤4%), which can absorb seismic energy, cooperate with energy-consuming devices (such as buckling constraint supports), and have a seismic fortitude of more than 9 degrees.
Q5: How to improve the corrosion resistance of steel structures?
A: Hot dip galvanizing: coating ≥85μm, coastal life of 20 years;
Fluorocarbon coating: salt spray corrosion resistance of more than 3000 hours;
Weathering steel: Add copper, nickel and other elements, naturally form a dense oxide layer, maintenance-free.
Q6: What is the recycling rate of steel structure?
A: 100% recyclable, renewable energy consumption is only 15% of the original steel, a project using recycled steel proportion of 45%, reduce carbon emissions 2.3 tons/thousand square meters, in line with green building certification (such as LEED, GB/T 50378).
Steel structure
