Highway Guardrail/Road Safety Barrier | W-Beam & Thrie-Beam Guardrails
Leading highway guardrail manufacturer supplying vehicle metal guard rail systems, W-beam and thrie-beam road guardrails with international standards.
Qingdao Develop Group is a professional highway guardrail manufacturer and supplier from China, specializing in vehicle metal guard rail systems, road safety barriers, and guardrail components for highways, expressways, bridges, and infrastructure projects worldwide.
Our guardrail systems are designed to absorb impact energy, reduce vehicle damage, and protect lives, meeting international road safety standards while offering excellent cost performance for global projects.
Highway and expressway construction
Bridge and overpass protection
Roadside safety improvement projects
Industrial and logistics park roads
Our guardrails are designed to perform reliably in urban, rural, coastal, and desert environments.
Using high-strength steel Zn-Al-Mg ternary alloy coated steel plates (S750HLD+ZMA), The product features high strength, light weight and corrosion resistance.
Testing shows that its strength is three times that of similar three-Beam plates, its weight is reduced by 25% compared with the same type of products, and it can save material costs by more than 30%. Meanwhile, its corrosion resistance is three times that of pure zinc-coated products with the same coating weight.
Specifications:506*85*3*4320 / 506*85*3*8320 / 506*85*3*12320
Application: Thrie-beam guardrails offer higher strength and improved containment compared to standard W-beam systems, suitable for high-risk road sections, such as: High-speed highways/Mountain roads/Heavy vehicle traffic areas new highway construction, reconstruction and expansion, roadside and median guardrail
Mobile Steel Guardrail
Widely applicable, this guardrail uses high-quality SGH340 hot-dip galvanized steel (zinc coating: 275g) as base material; plates are passivated and oil-coated for excellent corrosion resistance. The material boasts high toughness, light weight and strong damping energy absorption, and has proven effective in highway reconstruction & expansion projects.
Specifications: 600*1500/700*1500/900*6000
Application:Highway reconstruction and expansion construction area, ramp, toll island, tunnel entrance and exit diversion, etc.Site Application
The product developed by our company is currently the first median guardrail in China that has passed the SSm -class safety test. It is the only protective device designed to protect vehicles, drivers and passengers, as well as expressway monitoring equipment.
In addition to high strength, it also possesses a certain degree of elasticity and toughness. In case of an accident, the guardrail utilizes a certain distance of movement and deformation to achieve buffering, thereby meeting the design objectives.
Specifications:1600*18000 (single side, for bridge pier)/1500*1700*18000+/2000*1370*18000+
Application: Safety facility protection in central separation zones
This product has passed the full-scale vehicle crash test and obtained the CNAS-accredited quality test report. All test results meet the relevant requirements of the Standard for Safety Performance Evaluation of Highway Guardrails (JTG B05-01-2013).
It has a height of 950mm and can maintain linear consistency with the three-Beam guardrail of the main highway. It is designed with 6-meter-long standard sections, and the connection part adopts round tube pins for easy opening and closing. The bottom is equipped with a roller design to ensure the convenience and timeliness of opening the median opening.
Specifications:1000*620*30000+
Application: Opening yard of central separation zone for new construction, reconstruction and expansion of highway ground
Their main load-bearing components adopt collaborative stress design with high-strength reinforced concrete and zinc-aluminum-magnesium materials. Key features: high protection level, strong yet lightweight, fast construction, easy installation/maintenance, aesthetic transparency, and green low-carbon. No road surface anchoring is required, effectively preserving road surface integrity.
Specifications:1000*550*6000
Application: Highway construction, reconstruction and expansion, ramp, toll island, bridge, tunnel entrance and exit
The metal beam-column guardrail is a semi-rigid traffic protection facility. It has a modular structure composed of crossbeams, columns and connecting components, which enables easy installation and maintenance, and individual replacement of locally damaged parts. It boasts a high collision protection level (up to HA level, with a protection energy of 1089 kJ). By absorbing collision energy through the deformation of components, it effectively guides vehicles and protects drivers, passengers as well as bridge structures.
Specifications:1250*360*N
Application:It is applicable to the edges of bridges and central medians of expressways and urban expressways. It is also suitable for steel structure bridges, landscape bridges and other bridges with high requirements for protection and landscape. In addition, it can be integrated with noise barriers and anti-fall nets, thus having both noise reduction and anti-fall functions.
This is a high-strength guardrail product specially designed for large - scale facilities in the central median of expressways (such as ETC gantry columns). Its core function is to protect key structures in the median (such as gantry columns) from vehicle collisions, avoiding facility damage and secondary accidents. At the same time, it also meets the safety protection needs of conventional central medians.
Specifications:2000*1370*19000+
Application:Sections where facilities such as ETC gantries, large monitoring poles, and signal towers are installed in the central median of highways.
Snow fences—winter road safety facilities installed on highway sides—reduce traffic impacts from snow accumulation/drifting via blocking/diversion, cutting winter accident rates and ensuring traffic efficiency.
Our new snow fences use Zn-Al-Mg coated section steel and basalt fiber composites, with advantages: excellent UV/thermo-oxidative aging resistance; good low-temperature crack resistance, stable long-term mechanical properties; dark brown color boosts visibility, enhancing road landscape for safe travel; better snow-blocking effect than shallow trough wind embankments, snow walls, grass-hung fences, snow protection forests; low cost, easy to install/disassemble, reusable.
Specifications:4000*3000*N+
Application: Highway sections with severe wind and snow disasters, replacing snow forest and snow ditch
We supply a full range of guardrail components, including:
Guardrail beams (W-beam / Thrie-beam)
Steel posts (C-post, U-post, Sigma post)
Spacer blocks
End terminals
Bolts & fasteners
All components are manufactured for easy assembly and system compatibility.
To meet different environmental and budget requirements, we offer multiple surface treatments:
Zn-Al-Mg coated guardrail (high corrosion resistance)
Hot-dip galvanized highway guardrail
Custom coating thickness according to standards
Our Zn-Al-Mg highway guardrail systems provide significantly longer service life compared with traditional galvanized guardrails, reducing long-term maintenance costs.
Our road guardrail systems can be produced in accordance with:
AASHTO M180
EN 1317 (project-based)
AS/NZS standards
Custom drawings and specifications
Each batch is inspected to ensure dimensional accuracy, coating thickness, and mechanical performance.
Safety Performance
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