Prestressed Steel Strand
For post-tensioned slabs & core walls
Building & Civil Construction
Prestressed steel strand and precision rolled threaded steel engineered for post-tensioned concrete slabs, basement raft foundations, and high-rise core wall structures — built for structural designers and contractors who need long-term reliability, not just day-one strength.
01 — Industry Challenge
The Problem With Standard Rebar in Modern Building Structures
High-rise buildings, basement raft foundations, and long-span floor slabs increasingly rely on post-tensioning to reduce slab thickness, control deflection, and span longer distances without intermediate columns. Ordinary reinforcing bar simply can't deliver the tensile capacity or long-term stress retention these designs require — and in basement structures, uplift from groundwater pressure adds a second failure mode that standard rebar was never designed to resist.
For structural design institutes, general contractors, and building material procurement teams, the challenge is sourcing prestressing steel that performs consistently across a full building's floor plates, meets the specific design code named in the structural drawings, and comes with documentation a local building authority will actually accept.
02 — Our Solution
Prestressed Strand and Threaded Bar for Building Structures
Yuanxian supplies Prestressed Steel Strand as the core solution for post-tensioned floor slabs and high-rise core wall structures — selected because its high tensile strength and low relaxation performance allow thinner slabs, longer spans, and reduced deflection compared to conventionally reinforced concrete. This directly addresses the structural efficiency and long-term serviceability that post-tensioned design depends on.
For basement raft foundations and uplift-resistant anchoring, we recommend our Precision Rolled Threaded Steel. Its continuous thread profile allows full-length coupling and reliable anchorage in ground anchors and uplift piles — a practical advantage over standard rebar when a basement slab needs to resist sustained groundwater pressure without losing anchorage over time.
03 — Key Specs
What Matters Most for Building Applications
≥ 1860 MPa
Tensile Strength
≤ 2.5%
Relaxation Rate
Full-Length
Continuous Thread Coupling*
±0.1 mm
Diameter Consistency
*Continuous thread profile allows coupling at any point along the bar length; exact grade and thread spec vary by project — confirm with our technical team for your design requirement.
04 — Why Our Product vs. Standard Rebar
Built for Post-Tensioned Structures, Not Just General Reinforcement
| Requirement | Yuanxian Prestressed Strand / Threaded Bar | Standard Rebar |
|---|---|---|
| Tensile strength for thinner, longer-span slabs | ≥ 1860 MPa strand-grade capacity | ~400-500 MPa typical yield strength |
| Long-term prestress retention (relaxation) | Verified ≤ 2.5%, batch-tested | Not applicable — not a prestressing product |
| Anchorage & coupling flexibility for uplift piles | Full-length continuous thread | Requires welding or mechanical splices |
| Multi-standard compliance for design review | GB50010, ACI 318 reference compliance | Typically single local standard only |
05 — Standards & Certifications
Compliance for Building & Civil Construction Procurement
Our prestressed strand and precision rolled threaded steel for building applications are manufactured in accordance with recognized national and international design standards, selected according to destination market and structural design code:
GB 50010 GB/T 5224 ACI 318 ASTM A416
We support mill test certificates and documentation required for structural design review and local building authority submission.
06 — Applications by Project Type
Where Our Materials Are Used
Post-tensioned floor slabs — reduced slab thickness, longer column-free spans
Basement raft foundations — post-tensioned base slabs for high-rise foundations
High-rise core wall structures — prestressed reinforcement for shear walls and cores
Uplift-resistant ground anchors — threaded bar anchors resisting groundwater pressure
Transfer slabs & podium structures — post-tensioned transfer beams and slabs
07 — Project Reference
Field-Proven Across Building & Civil Construction Projects
Our prestressed strand and precision rolled threaded steel have supported high-rise building, basement foundation, and civil construction projects across Asia, Africa, the Middle East, and Latin America, covering post-tensioned floor systems and uplift-resistant foundation design.
08 — Related Products
Products for This Application
Precision Rolled Threaded Steel
For uplift anchors & slab post-tensioning
Compacted Steel Strand
Enhanced bonding for precast elements
Wire Rod
Base material for strand & fastenings
09 — FAQ
Frequently Asked Questions
Why use post-tensioned strand instead of standard rebar for floor slabs?
Post-tensioned strand allows thinner slabs, longer spans without intermediate columns, and better deflection and crack control than conventionally reinforced concrete, particularly valuable in high-rise and long-span commercial buildings.
What is precision rolled threaded steel used for in basement construction?
It's commonly used for uplift-resistant ground anchors and tie-down systems, where the continuous thread profile allows reliable coupling and anchorage against sustained groundwater pressure beneath basement raft foundations.
Can you supply materials compliant with GB50010 or ACI 318?
Yes, we manufacture and supply prestressed strand and threaded steel with documentation referencing GB 50010, GB/T 5224, and ACI 318 design standards, depending on your project's governing code.
Do you supply materials for both new construction and retrofit projects?
Yes, our prestressed strand and threaded bar are suitable for new building construction as well as structural strengthening and retrofit projects requiring additional post-tensioning capacity.
What documentation do you provide for structural design review?
We provide mill test certificates, product specifications, and can support additional testing documentation required for structural design review and local building authority submission upon request.
Sourcing Prestressed Strand or Threaded Bar for a Building Project?
Contact our technical team for product specifications, standard compliance documentation, and a quotation tailored to your building or civil construction project requirements.
