Seismic-Resistant Steel-Reinforced Concrete (SRC) Column

Seismic-Resistant Steel-Reinforced Concrete (SRC) Column  Product Description

You need more than just conventional columns when the safety of your structure hinges on its ability to withstand earthquakes. Our Seismic-Resistant Steel-Reinforced Concrete (SRC) Column offers proven performance for vital infrastructure by combining a high-strength Q345B/C steel core with C40-C60 grade concrete (≥50 MPa). Each column is manufactured in our 75,000 m² facility with an annual capacity of 80,000 tons. It is subjected to stringent quality processes and precision CNC fabrication with a tolerance of ±0.1 mm. Our SRC columns reach 2-4 hour fire ratings without additional coatings while keeping slimmer profiles than pure concrete alternatives—perfect for optimizing your usable floor space—with steel ratios optimized between 2-8% and displacement ductility factors surpassing 4.0.

Product Advantages

Superior Seismic Performance

Your building will be more resilient to severe earthquake activity. Brittle concrete by itself cannot prevent catastrophic collapse; therefore, the interior steel core absorbs seismic energy through controlled plastic deformation.

Reduced Cross-Sectional Footprint

When compared to conventional RC columns, you can increase the usable floor area by up to 30%. For high-rise buildings where every square meter matters, our hybrid design provides similar load capacity in noticeably lower proportions.

Enhanced Fire Resistance

Your investment is automatically safeguarded. Without the need for costly intumescent coatings or upkeep, the concrete cover's built-in fire insulation allows for multi-hour fire ratings.

Accelerated Construction Timeline

Project completion will be 20–30% quicker. Concrete is poured after our prefabricated steel cores are swiftly assembled, avoiding the complicated formwork delays that come with traditional methods.

Superior Load-Bearing Capacity

Your building handles massive axial loads confidently. The steel-concrete composite action prevents local buckling while the steel core enhances the concrete's compressive strength through confinement effects.

Long-Term Durability

You benefit from corrosion prevention built-in. Decades of maintenance-free operation are ensured by the concrete cover, which can be adjusted from 50 to 150 mm, protecting the steel core from environmental exposure.

 

Seismic-Resistant Steel-Reinforced Concrete (SRC) Columns

 

Specifications & Customization

Compliance Standards: AISC 360-16, Eurocode 4, ACI 318, EN 1090, AWS D1.1, JIS

Available Certifications: Malaysia CIDB, EN 10025 material reports, ISO 9001/14001/45001

Manufacturing & Quality Control

Advanced Fabrication Infrastructure

Modern technology is used in the construction of your columns. Our facility has 1200-ton plate rolling equipment, automated welding lines, and a 50-ton crane that can handle big components. Every cut and hole is guaranteed to reach exacting specifications via CNC systems.

Rigorous Quality Assurance Protocol

We implement multi-stage inspections to guarantee your structural integrity:

Weld Integrity Testing

Every full-penetration weld undergoes Non-Destructive Testing (NDT)—Ultrasonic Testing (UT) and Radiographic Testing (RT) per AWS D1.1 standards ensure zero hidden defects.

Concrete Quality Verification

We use self-consolidating concrete (SCC) to prevent voids in congested reinforcement zones. Ultrasonic Pulse Velocity (UPV) testing and core drilling confirm uniform compaction.

Interface Bonding Inspection

Shear studs connecting steel to concrete are checked for proper spacing and welding torque, ensuring composite action during seismic events.

Dimensional Accuracy Checks

Laser scanning verifies steel core verticality and concrete cover thickness—both critical for fire protection and structural performance.

Certification & Standards Compliance

Consistency is guaranteed by our ISO 9001/14001/45001-certified management system. As a National High-Tech Enterprise and China Steel Structure Association member, we participate in industry standard formulation, providing you goods that meet both local and international codes.

Project Cases

High-Rise Commercial Complex – Southeast Asia

1,200 Seismic-Resistant Steel-Reinforced Concrete (SRC) columns were delivered for a 58-story structure located in a high-seismic zone. While adhering to strict local earthquake codes, our optimized steel ratios added 3,500 m² of leasable space by reducing column dimensions by 25%.

Infrastructure Retrofit – Municipal Hospital

Upgraded a critical healthcare facility with 340 SRC columns to achieve immediate occupancy performance levels. The project maintained continuous operations during construction, with our prefabricated cores accelerating installation by 40%.

Heavy Industrial Plant – Mining Equipment Facility

Provided custom cruciform-section columns for vibrating machinery foundations. Our design handled extreme cyclic loads while the enhanced damping properties protected sensitive equipment during minor tremors.

 

 

Compliance & Certifications

· ISO 9001:2015 – Quality Management System

· ISO 14001:2015 – Environmental Management

· ISO 45001:2018 – Occupational Health & Safety

· Malaysia CIDB – Construction Industry Development Board certification

· EN 10025 – European steel material compliance (reports available)

· Class I Steel Structure Professional Contracting Qualification

· National High-Tech Enterprise designation

· Liaoning Province Key Prefabricated Building Base

We provide full documentation support including Material Test Certificates (MTC), inspection reports, and English technical drawings for international projects.

FAQ

Q: How does an SRC column differ from a Concrete-Filled Steel Tube (CFT)?

A: While CFT places steel on the outside, our Seismic-Resistant Steel-Reinforced Concrete (SRC) Column encases steel inside. This provides superior fire protection and easier beam-to-column connections for your construction team.

Q: What fire rating can I expect?

A: Due to the concrete cover, you'll easily achieve 2-4 hour fire ratings without additional coatings. Thicker covers extend this further based on your project requirements.

Q: How does the steel core improve earthquake resistance?

A: The internal steel allows controlled plastic deformation during seismic events—absorbing energy that would otherwise shatter plain concrete. Your building bends but doesn't break.

Q: Do I need specialized contractors for installation?

A: Yes, coordination between steel erectors and concrete contractors is required. The steel core must be properly braced before concrete pouring—our team provides installation guidance to ensure smooth execution.

Q: What tests verify seismic performance?

A: We conduct cyclic loading tests in laboratory settings, simulating earthquake forces. Additionally, all welds undergo UT/RT inspection, and concrete receives UPV testing to confirm structural integrity.

Q: Can you handle international projects?

A: Absolutely. We comply with EN 1090, AWS D1.1, and JIS standards. Our experience with Belt and Road Initiative projects and global EPC contractors means we understand your cross-border requirements.

Contact Us

Ready to enhance your project's seismic resilience? Our engineering team is here to discuss your specific requirements and provide customized Seismic-Resistant Steel-Reinforced Concrete (SRC) Column solutions tailored to your project.

Get Your Technical Consultation Today:Ava@zd-steels.com