Custom Bridge pier composite anti-collision fender facilities

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  • Bridge pier composite anti-collision fender facilities
  • Bridge pier composite anti-collision fender facilities
  • Bridge pier composite anti-collision fender facilities
  • Bridge pier composite anti-collision fender facilities

Bridge pier composite anti-collision fender facilities

High buffer energy absorption efficiency Strong corrosion resistance, durability, crashworthiness, excellent fatigue resistance, and low maintenance costs in the later period. Light in weight, easy to transport, install and replace Does not account for the net width of the fairway Beautiful appearance, green environmental protection, smooth appearance Non-metallic materials, anti-theft
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  • Fender installation method
    There are three ways to install the fixed CRF fenders, one is to have steel plates wrapped around the piers, and the fenders are installed on the outside of the steel plates; - one is to use the pull bolt holes, the piers are wrapped with steel strips, and the fenders are fixed on the steel strips, provided that The piers should reserve bolt holes for tension; - The first is the way of pre-embedded steel plates.
    Bridge pier outsourcing steel plate - first roughen the outside of the bridge pier that needs to be outsourced steel plate, first splicing and fixing the steel plate by planting glue, compacting, so that the steel plate and the bridge pier are in close contact; weld the splicing seam between the steel plate into a whole; Anti-corrosion treatment is carried out after welding.
    This installation method is suitable for completed bridges or it is strictly required that no
    How to operate bridges, such as railway bridges. The bottom of the outsourcing steel plate should reach the bearing platform, and the distance between the undefended parts
    Bridges with long caps are uneconomical.

    Steel plate for fixing bolt holes 1 - suitable for bridge piers with formwork opposite drawing holes after the pier construction is completed, the steel belt (steel hoop) is fixed by the fastening screw, and the fastening screw uses the original pier formwork opposite drawing hole , Avoid drilling holes in other parts of the pier body.
    This installation method saves steel, but affects the beauty of the bridge body, the steel belt is exposed, and the later maintenance is also troublesome.

    Pre-embedded steel plate—the inner surface of the pre-embedded steel plate is inserted into the steel cage of the pier by planting bars, and it is made into a whole by pouring concrete. The outer surface of the steel plate and the surface of the pier are on the same plane, without forming protrusions and affecting the pier body beautiful. The later maintenance and replacement of the fenders are only carried out on the surface of the steel plate and will not affect the pier structure.
  • CRF quality inspection meets the following table requirements:
    Item Technical indicators Testing standard
    Fiber Reinforced Composites ① Anti-collision system shell composite material tensile strength ≥ 300MPa, tensile modulus ≥ 20GPa
    ②The tensile strength of the composite lattice plate inside the anti-collision system is ≥250MPa, and the tensile modulus is ≥10GPa
    ③ Bending strength of composite material ≥ 200MPa
    ④ Compressive strength of composite material ≥ 200MPa
    ⑤ Composite material in-plane shear strength ≥ 50MPa
    ⑥Water absorption of composite materials<3%
    ⑦ Resin matrix shall not add filler, its content ≥ 30%
    ⑧ Shell Barcol hardness ≥ 45
    ①GB1446-2005 "Fiber Reinforced Plastic Performance Test Methods Summary"
    ②GB50608-2010 "Technical Specifications for Construction Engineering Application of Fiber Reinforced Composite Materials"
    ③GB/T 1447-2005 "Test Method for Tensile Properties of Fiber Reinforced Plastics"
    ④GB1448-2005 "Fiber Reinforced Plastic Compression Performance Test Method"
    ⑤GB1449-2005 "Fiber Reinforced Plastic Bending Performance Test Method"
    ⑥GB/T 3355-2005 "Fiber Reinforced Plastics Longitudinal and Horizontal Shear Test Method"
    ASTM D5528-01(2007) Standard Test Method
    for Mode I Interlaminar Fracture Toughness of
    Unidirectional Fiber-Reinforced
    Matrix Composites
    ⑦GB/T 1463-2005 "Fiber Reinforced Plastic Density and Relative Density Test Method"
    ⑧GB/T 2577-2005 "Test method for resin content of glass fiber reinforced plastics"
    ⑨GB/T3854-2005 "Bacol Hardness Test Method for Reinforced Plastics"
    Polyurethane closed cell core material Water absorption <3%
    Shear strength ≥ 0.10MPa
    Flat compression strength ≥ 0.15MPa, flat compression elastic modulus ≥ 6MPa
    ①GB/T 8810-2005 "Determination of Water Absorption of Rigid Foamed Plastics"
    ②GB/T 10007-2008 "Test Method for Shear Strength of Rigid Foamed Plastics"
    ③GB/T 1453-2005<"Test Method for Flat Compression Performance of Sandwich Structure or Core"
    The overall performance of the composite anti-collision block Color: traffic red RAL3020 (RAL industry international standard color card) Appearance size: ±5cm Service life: 30 years
    Considering that the main body of the anti-collision facility is a water structure, its construction process should refer to the specifications for FRP/composite material boats.
    ① The corrosion resistance of composite materials should meet the GB/T 3857 national standard "Test Method for Chemical Media Resistance of Glass Fiber Reinforced Thermosetting Plastics".
    ②The water absorption performance of the composite material should comply with GB/T 14207-93 national standard "Sandwich Structure or Core Water Absorption Test Method", to ensure that the water absorption rate is lower than 2%.
    ③ The color of the anti-collision body is recommended to be orange (specifically selected by the owner), and the outer surface should be painted with reflective paint.
    Various indicators of steel plate adhesive
    The material for pasting the steel plate shall be implemented in accordance with the relevant provisions of the "Technical Regulations for Concrete Structure Reinforcement" (CECS 25: 90): the adhesive used for reinforcement must have high bond strength, good durability, and certain elasticity. Its various strength indicators can be adopted according to the following table:
    Bond Strength of Structural Adhesives
    The type of base material to be bonded Destructive properties Shear strength (Mpa) Axial tensile strength (Mpa)
    Test value (f°v) Standard value (fvk) Design value (fv) Test value (f°t) Standard value (ftk) Design value (ft)
    Steel-concrete Concrete failure ≥f°v  fcvk fcv ≥f°ct fctk fot
    Sticky steel adhesive technical parameters (reference value)
    performance item performance requirements
    Grade A glue
    Colloid performance Tensile strength (MPa) ≥30
    Tensile modulus of elasticity (MPa) ≥3.5X 103
    Elongation(%) ≥1.3
    Bending strength (MPa) ≥45
    Shall not be brittle (cracked)
    Compressive strength ≥65
    Standard value of steel-steel tensile shear strength (MPa) ≥15
    Bonding ability Steel-steel uneven tear-off strength (KN/m) ≥16
    Steel-steel bond tensile strength (MPa) ≥33
    Positive tensile bond strength with concrete (MPa) ≥2.5, and it is concrete cohesive failure
    Non-volatile content (solid content) (%) ≥99


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More information about Bridge pier composite anti-collision fender facilities
Design Requirements for Bridge Pier Composite Anti-collision Facilities
Here are some design requirements for bridge pier composite anti-collision facilities:
1. Load Capacity: The anti-collision facility must be able to withstand the impact of vessels of different sizes and weights. The load capacity of the facility should be designed to match the maximum weight and velocity of the vessels that will be using the waterway .
2. Shock Absorption: The facility should be designed to absorb the shock of an impact, reducing the damage to the vessel and the facility. The shock absorption capacity can be achieved through the use of materials such as rubber, foam, or other elastic materials .
3. Corrosion Resistance: The facility should be able to resist corrosion from exposure to saltwater and other environmental factors. The materials used in the facility should be corrosion-resistant and designed to withstand exposure to the elements.
4. Stability: The anti-collision facility should be stable and able to maintain its position in the water during normal conditions and in the event of an impact. The facility should be anchored securely to the bridge pier or other structure to prevent it from moving or becoming dislodged.
5. Visibility: The facility should be highly visible to vessels approaching the bridge pier, even in poor visibility conditions such as fog or heavy rain. This can be achieved through the use of reflective materials, lighting, or other visual aids.
6. Ease of Installation and Maintenance: The anti-collision facility should be easy to install and maintain, with minimal disruption to the waterway or bridge operations. It should also be designed for easy inspection and repair to ensure its continued effectiveness over time.
7. Environmental Considerations: The design of the anti-collision facility should take into account the potential impact on the environment and marine life in the surrounding area. The use of non-toxic and environmentally friendly materials is recommended.
The design of bridge pier composite anti-collision facilities should prioritize safety, durability, and ease of use, while taking into account the specific requirements of the waterway and the surrounding environment.

Maintenance of Bridge Pier Composite Anti-collision Facilities
Regular maintenance of bridge pier composite anti-collision facilities is essential to ensure their continued effectiveness in protecting bridge piers from collisions. Here are some key maintenance tasks:
Inspection: Regular inspections should be carried out to check for any signs of damage or wear, including cracks, dents, or deformation. These should be repaired promptly to prevent further damage.
Cleaning: The anti-collision facilities should be cleaned regularly to remove any debris, marine growth, or other materials that could interfere with their function.
Repainting: If the anti-collision facilities are painted, they may need to be repainted periodically to protect them from corrosion and to ensure they remain visible to vessels.
Replacement: If any part of the anti-collision facilities is damaged beyond repair, it should be replaced promptly to maintain the safety of the structure.
Testing: Periodic testing may be required to ensure that the anti-collision facilities are functioning properly and providing the necessary protection to the bridge piers.