Highway Bridge Protective Net

Highway Bridge Protective Gabion Mesh - Anti-Throw / Vehicle Impact Resistance / Weather & Rust Resistant - Guardrail Isolation / Pier Protection / Central Median Specialized Mesh

II. Product Overview:

As critical transportation hubs, highway bridges face safety hazards such as "vehicles losing control and crashing, pedestrians/debris falling, pier collisions, and wind/rain corrosion." This highway bridge protective gabion mesh is specifically designed to address these pain points. It is woven from high-strength metal wire, combining impact resistance, fall prevention, weather and corrosion resistance, and adaptability to bridge curves. It is suitable for highway bridge guardrails, central medians, pier protection, and overpass anti-throw applications, complying with the "Highway Traffic Safety Facilities Design Specifications" to safeguard vehicle and pedestrian safety.

III. Core Advantages:

Addressing the characteristics of highway bridges—"high traffic volume, high-speed impacts, long-term exposure (wind/rain/UV), and complex structures (curves/slopes)"—this product highlights fundamental differences from ordinary protective meshes:

1. Impact Resistance and Fall Prevention, Strengthening Bridge Safety

• Material and Strength:
  Made from Q355 high-strength low-alloy steel wire (or hot-dip galvanized steel wire), with a wire diameter of 4.0-6.0mm (customized based on bridge grade: 5.0-6.0mm for highway bridges, 4.0-5.0mm for municipal bridges). Tensile strength ≥600MPa, elongation at break ≥15%. Can withstand lateral impacts from vehicles at 30km/h (equivalent to a small car scraping) and impacts from 50kg falling objects (e.g., tools, cargo). Maximum mesh deformation ≤8%, without rupture, effectively blocking falling objects.
• Fall and Intrusion Prevention Design:
  • Diamond-shaped mesh openings (commonly 4cm×8cm, 5cm×10cm), with strictly controlled sizes (maximum 10cm×10cm), preventing limbs or small tools from passing through. Gap between mesh bottom and bridge guardrail ≤5cm, avoiding debris falling through the bottom.
  • Central median specialized mesh adopts a "double-layer加密 design" with 3cm×6cm openings, preventing direct glare from opposing lanes (anti-glare) and vehicles from crossing during loss of control, while blocking thrown objects (e.g., tire fragments, cargo).

2. Weather and Corrosion Resistance, Adapting to All-Climate Bridge Environments

• Surface Treatment Processes:
  • Hot-dip galvanizing (zinc coating thickness ≥100μm, salt spray test ≥800 hours): Suitable for bridges in dry areas, resisting rain and dust erosion, with a service life of 10-15 years.
  • Hot-dip galvanizing + powder coating (color options: black, gray, blue, matching bridge guardrail tones): Dual protection with zinc and plastic layers, salt spray test ≥1200 hours, suitable for coastal and rainy areas (resisting chloride ions from seawater, damp mold), with a service life of 15-20 years.
• Extreme Environment Adaptation:
  • Low-temperature areas (-30℃): Mesh material does not become brittle, can withstand snow and ice accumulation. High-temperature areas (60℃): Powder coating does not peel or fade, with excellent UV aging resistance.

3. Conforming to Bridge Structures, Adapting to Complex Terrains

• Flexibility and Adaptability:
  • Gabion mesh elongation ≥20%, can flexibly bend along bridge curves (e.g., ramp bridges, curved guardrails), with a conformity rate ≥95%, eliminating the need for cutting and splicing, avoiding protection gaps.
  • Customizable specifications: Mesh width 1-3m (1.5-2m for guardrail protection, 2-3m for pier protection), length cut to需求 (standard 50m/roll), adapting to guardrail heights and curves of different bridge types (simply supported bridges, continuous beam bridges, arch bridges).
• Easy Installation:
  Comes with "bridge-specific fasteners" (including expansion bolts, U-clamps, flange plates), enabling precise connection to concrete or steel guardrails. Installation efficiency is 30% higher than traditional welded meshes, reducing bridge deck construction time (without affecting traffic flow).

4. Balancing Transparency and Safety, Without Compromising Driving Visibility

• Visual and Driving Friendliness:
  Mesh light transmittance ≥70%, does not obstruct driver visibility (especially on curves and ramps), avoiding traffic accidents caused by blocked views. Smooth, non-reflective surface (powder coating is matte), does not interfere with opposing lane lights at night, enhancing driving safety.

IV. Technical Parameters:

V. Applicable Scenarios:

• Core Scenarios:
  • Highway Bridge Guardrail Protection: Installed on the outer side of guardrails, preventing vehicles from crashing out, pedestrians from climbing over, and blocking debris from falling off the bridge.
  • Central Median: Separates opposing lanes, prevents glare, vehicle crossover, and thrown objects, enhancing highway driving safety.
  • Pier Protection: Wraps around the base of piers, preventing vehicles (especially trucks) from colliding and causing structural damage.
  • Overpasses/Passageways: Laid on the underside (anti-throw) and sides of overpass guardrails, preventing items from falling and injuring vehicles or pedestrians below.

VI. Service Support:

• Customized Solutions:
  Based on bridge design drawings (guardrail height, curve radius) and regional conditions (climate, corrosion level), free customized recommendations for material, mesh size, and surface treatment are provided, along with CAD installation diagrams (including bend angle design for curved bridges).
• Compliance Support:
  Full set of test reports provided (impact resistance, salt spray, tensile strength), compliant with JT/T 374-2018 "Highway Bridge Guardrails" standard, assisting with acceptance by supervision units and transportation departments.
• Supply Chain and After-Sales:
  • Standard specifications shipped within 7 days. Bulk orders (1000㎡ and above) enjoy exclusive discounts for bridge projects. Supports "sample testing first (1㎡ sample), order upon approval."
  • 5-year warranty (free replacement for non-human damage), lifetime technical consultation (e.g., maintenance, partial replacement plans).