EN
Bridge System
The cable body of the suspension bridge suspenders is a core load-bearing component of prestressed suspension bridges. As a key structure connecting the main cables and the stiffening girders, it mainly bears and transfers the loads from the stiffening girders, bridge decks and other upper parts to the main cables, which are then supported by the bridge towers and anchorages to ensure the structural stability of the bridge.
It is mostly made of high-strength steel, with mainstream types including parallel steel wire cable bodies and steel strand cable bodies. It is also equipped with anti-corrosion and protection systems such as thermal extrusion PE jackets, galvanized or epoxy coatings, which effectively resist corrosion and fatigue damage. The material, mechanical properties and installation accuracy of the cable body directly affect the load-bearing capacity and service life of the bridge.
ADVANTAGES
Advantages of the Cable Body of Suspension Bridges :
1. Excellent load-bearing performance and strong spanning capacity
Made of high-strength steel wires or steel strands, the cable body has a much higher tensile strength than traditional components such as concrete and ordinary steel, making it a core choice for long-span bridges. The main cable body of suspension bridges can bear huge vertical loads and easily achieve kilometer-level ultra-long spans, which is unmatched by other bridge types.
2. Clear force transmission and good structural stability
As a flexible component, the cable body mainly bears tension without complex stresses such as bending moment and shear force, resulting in high material utilization efficiency. The main cable and suspenders transmit forces cooperatively, with a clear load transmission path, high structural redundancy, and strong overall stability.
3. Strong material adaptability and excellent durability
Most mainstream cable bodies are made of materials such as galvanized steel wires and epoxy-coated steel strands, which can effectively prevent rust and corrosion. The supporting protective sheaths and anchor systems further improve the weather resistance, enabling the cable body to adapt to harsh environments such as marine and acid rain environments, and achieving a long service life.
USE
Convenient construction and suitability for large-scale projects
The cable body can be prefabricated in factories and tensioned on-site with a high degree of industrialization, reducing on-site wet operations. Compared with concrete structures, the cable body has a lighter self-weight, which reduces the load on basic structures such as bridge towers and anchorages, and greatly simplifies the construction difficulty of ultra-long-span bridges.
Low operation and maintenance costs and convenient inspection and replacement
The cable body (especially the suspender cable body) has a mature modular design. In case of damage in the later stage, the damaged cable body can be replaced separately without large-scale demolition of the main bridge body, ensuring high maintenance efficiency, low costs, and the long-term operational safety of the bridge.
Balancing economy and aesthetics
In ultra-long-span scenarios, the comprehensive cost of the suspension bridge cable body system is lower than that of cable-stayed bridges, steel truss girder bridges and other structures. Meanwhile, the concise form of the cable body integrates with the overall bridge, presenting a light and beautiful visual effect, and combining functionality and ornamental value.
SPECIFICATIONS
Galvanized Steel Wire Cable Body
Technical Parameters of Galvanized Steel Wire Cable Body (Matched with Steel Wire Diameter Φ5, σb≥1670MPa)
Specification & Model | Nominal Cross-sectional Area of Steel Wire Bundle (cm³) | Theoretical Mass of Steel Wire Bundle (kg/m) | Single Black Sheath Structure (Type H) | Double-Layer Structure (Type C, Black Inner Layer & Colored Outer Layer) | Breaking Force (kN) | Matching Anchor Specification
| ||
Outer Diameter (mm) | Unit Weight of Cable (kg/m) | Outer Diameter (mm) | Unit Weight of Cable (kg/m) | |||||
PES5-37 | 7.26 | 5.7 | 45 | 6.5 | 49 | 6.8 | 1213 | LZM/RM5-37 |
PES5-55 | 10.08 | 8.5 | 51 | 9.3 | 55 | 9.6 | 1803 | LZM/RM5-55 |
PES5-61 | 11.98 | 9.4 | 55 | 10.4 | 59 | 10.8 | 2000 | LZM/RM5-61 |
PES5-73 | 14.33 | 11.3 | 59 | 12.4 | 63 | 12.8 | 2394 | LZM/RM5-73 |
PES5-85 | 16.69 | 13.1 | 61 | 14.2 | 65 | 14.6 | 2787 | LZM/RM5-85 |
PES5-91 | 17.87 | 14.0 | 65 | 15.4 | 69 | 15.8 | 2984 | LZM/RM5-91 |
PES5-109 | 21.40 | 16.8 | 68 | 18.1 | 72 | 18.5 | 3574 | LZM/RM5-109 |
PES5-121 | 23.76 | 18.7 | 71 | 20.0 | 75 | 20.4 | 3968 | LZM/RM5-121 |
PES5-127 | 24.94 | 19.6 | 75 | 21.2 | 79 | 21.7 | 4164 | LZM/RM5-127 |
PES5-139 | 27.29 | 21.4 | 78 | 23.2 | 82 | 23.7 | 4558 | LZM/RM5-139 |
PES5-151 | 29.65 | 23.3 | 79 | 24.9 | 83 | 25.4 | 4951 | LZM/RM5-151 |
Elastic Modulus of Suspender Cable：E≥1.9x105MPa | ||||||||
Technical Parameters of Galvanized Steel Wire Cable Body (Matched with Steel Wire Diameter Φ7, σb≥1670MPa)
Specification & Model | Nominal Cross-sectional Area of Steel Wire Bundle (cm³) | Theoretical Mass of Steel Wire Bundle (kg/m) | Single Black Sheath Structure (Type H) | Double-Layer Structure (Type C, Black Inner Layer & Colored Outer Layer) | Breaking Force (kN) | Matching Anchor Specification
| ||
Outer Diameter (mm) | Unit Weight of Cable (kg/m) | Outer Diameter (mm) | Unit Weight of Cable (kg/m) | |||||
PES7-37 | 14.24 | 11.2 | 61 | 12.4 | 65 | 12.8 | 2378 | LZM/RM7-37 |
PES7-55 | 21.17 | 16.6 | 68 | 17.9 | 72 | 18.3 | 3535 | LZM/RM7-55 |
PES7-61 | 23.48 | 18.4 | 73 | 20.0 | 77 | 20.5 | 3935 | LZM/RM7-61 |
PES7-73 | 28.09 | 22.1 | 78 | 23.7 | 82 | 24.2 | 4692 | LZM/RM7-73 |
PES7-85 | 32.71 | 25.7 | 83 | 27.5 | 87 | 28.0 | 5463 | LZM/RM7-85 |
PES7-91 | 35.02 | 27.5 | 89 | 29.8 | 93 | 30.4 | 5848 | LZM/RM7-91 |
PES7-109 | 41.95 | 32.9 | 93 | 35.1 | 97 | 35.7 | 7005 | LZM/RM7-109 |
Elastic Modulus of Suspender Cable：E≥1.9x105MPa | ||||||||
Epoxy Coated Steel Wire Cable Body
Technical Parameters of Epoxy Coated Steel Wire Cable Body (Matched with Steel Wire Diameter Φ5, σb=1670MPa)
Specification & Model | Nominal Cross-sectional Area of Steel Wire Bundle (cm³) | Theoretical Mass of Steel Wire Bundle (kg/m) | Single Black Sheath Structure (Type H) | Double-Layer Structure (Type C, Black Inner Layer & Colored Outer Layer) | Breaking Force (kN) | Matching Anchor Specification
| ||
Outer Diameter (mm) | Unit Weight of Cable (kg/m) | Outer Diameter (mm) | Unit Weight of Cable (kg/m) | |||||
PES.E5-37 | 7.26 | 5.7 | 49 | 6.8 | 53 | 7.1 | 1213 | LZM/RM5-37 |
PES.E5-55 | 10.80 | 8.5 | 55 | 9.6 | 59 | 10.0 | 1803 | LZM/RM5-55 |
PES.E5-61 | 11.98 | 9.4 | 60 | 10.9 | 64 | 11.3 | 2000 | LZM/RM5-61 |
PES.E5-73 | 14.33 | 11.3 | 63 | 12.7 | 67 | 13.1 | 2394 | LZM/RM5-73 |
PES.E5-85 | 16.69 | 13.1 | 66 | 14.6 | 70 | 15.0 | 2787 | LZM/RM5-85 |
PES.E5-91 | 17.87 | 14.0 | 71 | 15.9 | 75 | 16.4 | 2984 | LZM/RM5-91 |
PES.E5-109 | 21.40 | 16.8 | 74 | 18.6 | 78 | 19.1 | 3574 | LZM/RM5-109 |
PES.E5-121 | 23.76 | 18.7 | 77 | 20.6 | 81 | 21.1 | 3968 | LZM/RM5-121 |
PES.E5-127 | 24.94 | 19.6 | 84 | 22.3 | 88 | 22.9 | 4164 | LZM/RM5-127 |
PES.E5-139 | 27.29 | 21.4 | 84 | 23.7 | 88 | 24.2 | 4558 | LZM/RM5-139 |
PES.E5-151 | 29.65 | 23.3 | 86 | 25.7 | 90 | 26.2 | 4951 | LZM/RM5-151 |
Elastic Modulus of Suspender Cable：E≥1.9x105MPa | ||||||||
Technical Parameters of Epoxy Coated Steel Wire Cable Body (Matched with Steel Wire Diameter Φ7, σb=1670MPa)
Specification & Model | Nominal Cross-sectional Area of Steel Wire Bundle (cm³) | Theoretical Mass of Steel Wire Bundle (kg/m) | Single Black Sheath Structure (Type H) | Double-Layer Structure (Type C, Black Inner Layer & Colored Outer Layer) | Breaking Force (kN) | Matching Anchor Specification
| ||
Outer Diameter (mm) | Unit Weight of Cable (kg/m) | Outer Diameter (mm) | Unit Weight of Cable (kg/m) | |||||
PES.E7-37 | 14.24 | 11.2 | 62 | 12.4 | 66 | 12.8 | 2378 | LZM/RM7-37 |
PES.E7-55 | 21.17 | 16.6 | 71 | 18.0 | 75 | 18.4 | 3535 | LZM/RM7-55 |
PES.E7-61 | 23.48 | 18.4 | 77 | 20.1 | 81 | 20.6 | 3920 | LZM/RM7-61 |
PES.E7-73 | 28.09 | 22.1 | 84 | 24.1 | 88 | 24.6 | 4692 | LZM/RM7-73 |
PES.E7-85 | 32.71 | 25.7 | 87 | 27.6 | 91 | 28.2 | 5463 | LZM/RM7-85 |
PES.E7-91 | 35.02 | 27.5 | 93 | 30.0 | 95 | 30.5 | 5848 | LZM/RM7-91 |
PES.E7-109 | 41.95 | 32.9 | 100 | 35.6 | 104 | 36.2 | 7005 | LZM/RM7-109 |
Elastic Modulus of Suspender Cable：E≥1.9x105MPa | ||||||||
New Type Low-Stress Corrosion-Resistant Cable Body
PES(FD) cable is an improved PES stay cable. It is a fully corrosion-resistant cable with double-layer HDPE protection.
The improved cable features the following special properties: An isolation layer is installed between the two layers of HDPE. When the suspender is under static load, the outer HDPE layer can effectively release stress, keeping it operating at a low stress level, which significantly mitigates HDPE stress cracking.
Technical Parameters of New Type Low-Stress Corrosion-Resistant Cable Body (Matched with Steel Wire Diameter Φ7, σb=1670MPa)
Specification & Model | Nominal Cross-Sectional Area of Steel Wire Bundle (cm³) | Theoretical Mass of Steel Wire Bundle (kg/m) | Outer Diameter of Stay Cable (mm) | Diameter of Steel Wire Bundle(mm) | Breaking Force (kN) | Design Cable Force K=3 (kN) | Matching Anchor Specification |
PES(FD)7-37 | 14.24 | 11.2 | 65 | 51 | 2378 | 793 | LZM/RM7-37 |
PES(FD)7-55 | 21.17 | 16.6 | 72 | 58 | 3535 | 1178 | LZM/RM7-55 |
PES(FD)7-61 | 23.48 | 18.4 | 77 | 63 | 3920 | 1307 | LZM/RM7-61 |
PES(FD)7-73 | 28.0 | 22.1 | 82 | 68 | 4692 | 4564 | LZM/RM7-73 |
PES(FD)7-85 | 32.71 | 25.7 | 93 | 71 | 5463 | 1821 | LZM/RM7-85 |
PES(FD)7-91 | 35.02 | 27.5 | 93 | 77 | 5848 | 1949 | LZM/RM7-91 |
PES(FD)7-109 | 41.95 | 32.9 | 97 | 81 | 7005 | 2335 | LZM/RM7-109 |
Epoxy Stay Cable Body
Technical Parameters of Extruded Stay Cable Body
Stay Cable Model | Nominal Cross-Sectional Area of Steel Wire Bundle（cm2） | Unit Mass of Cable Body （kg/m） | Outer Diameter of Cable Body（mm） | Nominal Breaking Cable Force（KN） |
GJ15-3 | 4.2 | 4.73 | 50 | 780 |
GJ15-4 | 5.6 | 5.93 | 54 | 1040 |
GJ15-5 | 7.0 | 7.32 | 65 | 1300 |
GJ15-6 | 8.4 | 8.56 | 65 | 1560 |
GJ15-7 | 9.8 | 9.79 | 65 | 1820 |
GJ15-9 | 12.6 | 13.21 | 85 | 2340 |
GJ15-12 | 16.8 | 16.65 | 85 | 3120 |
GJ15-15 | 21.0 | 21.42 | 105 | 3900 |
GJ15-19 | 26.6 | 25.84 | 105 | 4940 |
GJ15-22 | 30.8 | 30.59 | 117 | 5720 |
GJ15-25 | 35.0 | 34.69 | 126 | 6500 |
GJ15-27 | 37.8 | 36.81 | 126 | 7020 |
GJ15-31 | 43.4 | 41.89 | 130 | 8060 |
GJ15-37 | 51.8 | 50.28 | 145 | 9620 |
PACKAGE
1) All the products are packed with seaworthy packing.
2) Customer's special requirement for packing can be satisfied.
3) Air freight, sea freight and truck freight are all available.
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