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Application
From cable-stayed viaducts to prestressed box-girder interchanges and anchor bolt foundations — Yuanxian provides the complete material system for modern highway bridge engineering, backed by full compliance documentation and in-house technical support.
Highway bridges carry unpredictable live loads, extreme environmental variation, and public scrutiny on safety for a century or more. Every material in the structural system must perform to specification — without exception.
Heavy freight vehicles, convoy loading, and accidental overloads impose dynamic stresses far exceeding static design assumptions. Prestressed systems must absorb cyclic load variations without fatigue cracking or creep deformation over the full design life.
Highway bridges in cold climates are routinely exposed to chloride-rich deicing salt spray. Coastal or estuarine crossings face tidal chloride. Both environments accelerate tendon corrosion — the leading cause of major bridge rehabilitation or failure globally.
Modern highway bridges — curved alignments, asymmetric cable-stayed forms, integral abutments — require anchorage and connection hardware that can be configured to non-standard geometries while maintaining full load transfer and fatigue performance.
Our prestressed strand, anchorage systems, and precision rolled bars are designed to work together — covering every tension and compression element in a highway bridge structure.
A fully integrated post-tensioning system comprising anchor heads, bearing plates, trumpet-shaped seal caps, wedges, and HDPE duct — engineered specifically for highway bridge applications. Our systems accommodate single-strand to 55-strand bundles and are configurable for both flat-slab and web tendon profiles.
High-strength 1×7 strand and individual PC wires are the primary tension elements in post-tensioned and pretensioned bridge structures. Our highway-grade strand achieves ultra-low relaxation values and is available with epoxy or galvanized coating for corrosion-exposed applications including external tendons and stay cable wire.
High-strength precision-rolled threaded bars (PSB500–PSB1080) are used wherever a rigid, fully threaded prestressed element is preferred over flexible strand — particularly in short-length applications, vertical post-tensioning, and anchor bolt systems. The continuous thread profile allows anchoring and coupling at any position along the bar.
A highway bridge is a system — not a single element. Understanding which Yuanxian product serves which structural component helps engineers and procurement teams specify correctly from the outset.
Bonded or unbonded post-tensioned tendons running through preformed ducts in the deck slab and webs. Each tendon consists of multiple strands anchored at both ends using a multi-strand wedge anchor system.
PC Strand + Bridge Anchor SystemPrimary bending-resistance tendons in the bottom flange of box girders and I-beams, carrying the highest sustained tensile force. Ultra-low relaxation is critical here to prevent long-term camber and deflection divergence.
Low-Relaxation PC StrandVertically post-tensioned piers and pier caps use high-strength threaded bars rather than strand — their rigidity prevents lateral movement during stressing and their continuous thread allows anchoring at any height.
Precision Rolled Threaded BarLoad-bearing anchorage heads and live-end anchor assemblies transfer the full tendon force into the concrete section. Couplers allow tendon continuation across construction joints for incrementally launched bridges.
Bridge Anchor SystemSpecifications most commonly required in highway bridge project tendering and design verification. Full test reports available for every production lot.
| Product | Grade / Type | Dia. / Size | Breaking / Yield Load | Elongation | Relaxation | Key Standard |
|---|---|---|---|---|---|---|
| PC Strand | 1×7 — 1860 MPa LR | 15.24 mm | ≥ 259.5 kN | ≥ 3.5% | ≤ 2.5% | ASTM A416 Gr.270 |
| PC Strand | 1×7 — Y1860S7 LR | 15.2 mm | ≥ 259.0 kN | ≥ 3.5% | ≤ 2.5% | EN 10138-3 |
| Epoxy Strand | FECS — 1860 MPa | 15.24 mm | Same as base strand | ≥ 3.5% | ≤ 4.0% | ASTM A882 |
| Anchor System | Multi-strand (OVM type) | 3 – 55 strands | ≥ 95% UTS transfer | — | — | JT/T329 · GB/T14370 |
| Precision Bar | PSB830 | 25 – 50 mm | Yield ≥ 830 MPa | ≥ 6% | — | GB/T20065 |
| Precision Bar | PSB1080 | 15 – 50 mm | Yield ≥ 1080 MPa | ≥ 6% | — | GB/T20065 · ASTM A722 |
Bridge contracts are won or lost on documentation, lead time, and the ability to respond to technical queries. We are set up for all three.
Most suppliers offer strand or anchorage, rarely both. Yuanxian manufactures all three product categories — PC strand, bridge anchor systems, and precision rolled bars — enabling a single-source procurement that simplifies QA documentation and reduces inter-supplier compatibility risk on complex bridge projects.
Our bridge anchor system is offered as a complete post-tensioning kit including corrugated HDPE duct, coupling sleeves, end caps, and injection fittings. This eliminates the need to source duct from a separate supplier and ensures dimensional compatibility across the entire tendon assembly.
Our products can be certified to both Chinese national standards (GB/T, JT/T) and international standards (ASTM, AASHTO, EN) in the same production run. For export infrastructure projects funded by MDBs or international contractors, we provide the documentation package required for third-party inspection and project owner acceptance.
From standard bright strand for inland concrete-encased tendons to hot-dip galvanized or fusion-bonded epoxy-coated strand for external tendons and aggressive environments — we stock or produce the full protection spectrum, with consistent base strand properties across all coating types.
Full mill test reports, third-party inspection records, and compliance declarations are provided with every shipment. Document packages are available in English and Chinese.
Our combined product system covers every major structural component type encountered in highway bridge and infrastructure project delivery.
Pretensioned or post-tensioned I-beams and T-beams used as the primary span element for standard highway crossings up to 50 m span.
Long continuous box girder bridges for elevated highway and urban interchanges, with multi-strand internal and external tendons.
Post-tensioned deck slabs and pylon anchor zones in cable-stayed highway bridges, where precision and fatigue are critical.
Ground anchor cable systems and main cable anchor splay saddle zones using high-strength PC strand and anchor assemblies.
Soil nail and tieback anchor systems using precision threaded bar for highway cut slopes, embankments, and tunnel portals.
Prestressed precast culvert segments and approach slab post-tensioning for highway grade separations and pedestrian underpasses.
Large-scale highway viaduct projects often require coordinated supply of PC strand, anchorage systems, and precision threaded bars across hundreds of individual bridge spans. Yuanxian has supplied integrated packages of this type for highway projects in Southeast Asia and the Middle East.
For a representative project involving 200+ box girder spans at 40 m, this means coordinating: strand supply matched to the casting yard's coil-handling equipment, anchor system sized to the design tendon layout, and precision bars for pier head and cap beam vertical post-tensioning.
Full dual-standard compliance documentation (GB/T + ASTM) provided for each product category
Strand coil weight and inner diameter customized to casting yard specification
Anchor system drawing review and approval process managed by our technical team
Third-party SGS or BV inspection coordinated and documented prior to shipment
Share your design specification, span configuration, or tendon layout — our technical team will recommend the right product combination and provide a detailed quotation within 24 hours.
Cable Material
A cable system consists of multiple steel strands bundled together.
Common specifications:
- Single steel strand: Φ15.20 mm, Φ15.24 mm, Φ17.80 mm
- Structure: 7-wire steel strand (1×7), 1860 MPa
- Corrosion protection: galvanized, zinc-aluminum alloy (Zn 5%Al), epoxy coating, etc
Advantages:
- Can be tensioned and replaced individually
- Good corrosion resistance
- Lightweight construction equipment
- Suitable for medium-span, low-tower cable-stayed bridges
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Yuanxian High-tech Material is a company serving a worldwide customers base providing innovative and reliable product solution that recognizes the value of customer care.
+86 180 2006 1362
Haitai Huake Third Road No.1, Huayuan Industrial Zone, Binhai High Tech Zone, Tianjin, china
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