Powerhouse Factory, Cangzhou Bobin Trading Co., Ltd.
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Reinforcing steel stirrups
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- Product Description
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Reinforcing steel stirrups, used in construction, serve as critical confinement elements within reinforced concrete structures. Working synergistically with longitudinal reinforcing bars, they effectively restrain the deformation of the core concrete, significantly enhancing the shear resistance and seismic capacity of structural members—making them essential for maintaining the overall integrity and stability of the structure. Widely applied in various load-bearing components such as building beams, columns, and shear walls, this product is a key complementary building material in modern construction projects, ensuring structural safety.
Product Core Parameter Table
Parameter Category
Detailed specifications
Product Name
Reinforcing steel stirrups for construction (including plain stirrups, composite stirrups, and spiral stirrups)
Core Material
Low-carbon steel, low-alloy steel; mainstream grades: HPB300, HRB335, HRB400/HRB400E, HRB500/HRB500E
Appearance and Form
Plain stirrups: regular shapes such as rectangles, squares, and diamonds; composite stirrups: formed by combining multiple limbs of plain stirrups; spiral stirrups: continuous spiral structures, all fabricated using a bending process for precise dimensions.
Common Specifications
Diameter: 6mm–16mm; Cross-sectional dimensions: Customized according to the component’s cross-section (e.g., 200mm × 400mm, 300mm × 500mm, etc.); Spacing: 100mm, 150mm, 200mm, etc., with customization available based on design drawings.
Mechanical Properties
Yield strength: HPB300 ≥ 300 MPa, HRB400 ≥ 400 MPa, HRB500 ≥ 500 MPa; seismic-grade bars (marked with "E") meet the ductility requirement of Akv ≥ 15 J, complying with seismic design specifications.
Processing Technology
CNC bending and forming, straightening and cutting, and derusting treatments are performed. Composite stirrups are formed either by integral bending or welding, while spiral stirrups are produced using a continuous coiling process, with dimensional tolerances kept within ±2mm.
Implementation Standards
GB/T 1499.1-2017, GB/T 1499.2-2018, GB 50010-2010 (Code for Design of Concrete Structures)
Core Product Advantages
• High-Precision Molding Assurance: Manufactured using fully automated CNC bending and hoop-forming equipment, this process integrates rebar straightening, bending, and cutting into a seamless workflow. The bending angles are precisely controlled (e.g., 90°, 135°, 180°, with an error margin of ≤±1°), while dimensional accuracy is maintained within ±2mm—ensuring perfect alignment with longitudinal reinforcement bars and significantly enhancing the efficiency of tying operations.
• Full-Range Scenario Adaptation: Covering all product categories, including standard single-leg stirrups, double-leg stirrups, four-legged composite stirrups, and spiral stirrups, with diameters ranging from 6mm to 16mm. We can customize production according to the cross-sectional shapes and load requirements of various structural members such as beams, columns, and shear walls, ensuring flexibility to meet diverse engineering needs.
• Exceptional seismic confinement performance: The seismic-grade stirrups (HRB400E, HRB500E) exhibit outstanding yield strength and ductility. Their 135° hook design enhances anchorage with longitudinal reinforcement, effectively confining concrete under seismic loads and preventing buckling of longitudinal bars, thereby significantly improving the seismic ductility of structural members.
• Premium-quality materials ensure durability: We use raw materials that meet national standards, followed by surface treatments such as rust removal and phosphating, enhancing corrosion resistance by more than 20%. Additionally, the welded composite stirrups are manufactured using flash butt welding, resulting in welds stronger than the base material and eliminating the risk of fractures during use.
• Customized services that are efficient and convenient: Supports direct import of CAD drawings into the processing system, enabling a seamless transition from design to production. We also offer on-demand cutting, bulk bending of stirrups, and label printing services, reducing the need for secondary on-site processing, minimizing construction waste, and shortening project timelines.
Application scenarios
Application Areas
Specific application scenarios
Recommended Product Types
Civil Architecture Field
Core components such as beams, columns, shear walls, and elevator shafts in residential buildings, office towers, and commercial complexes are designed to confine concrete, enhance the shear resistance of structural elements, and ensure the stability of the building's main structure under both its own weight and live loads.
HPB300 (secondary members), HRB400E (primary load-bearing members) single-leg/double-leg stirrups
Transportation Engineering Field
Highway and railway bridge piers, cap beams, box girders, and tunnel lining structures must withstand dynamic load impacts and complex stress conditions, enhancing their crack resistance and durability.
HRB400E, HRB500E composite stirrups, spiral stirrups
Industrial and Specialized Construction Fields
Industrial factory buildings' heavy-duty columns, equipment foundations, nuclear power plant containment structures, chimneys, and other specialized components are designed to withstand extreme conditions such as heavy loads, strong winds, and earthquakes, ensuring the long-term safety and reliable operation of the structure.
HRB500E Composite Stirrups, Large-Diameter Spiral Stirrups
Factory scene
Logistics delivery
Payment and Distribution
T/T, L/C
★ If your order is not large, we can ship it to you via TNT, DHL, UPS, or EMS, among others.
★ If your order is large, we recommend using air or sea freight through the freight forwarder you specify. We also have long-term cooperative agents.
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7 to 10 business days |
7 to 10 business days |
7 to 10 business days |
7 to 10 business days |
7 to 10 business days |
FAQ
What is the product price? Can you provide a detailed quotation?
✔ The product price may vary due to factors such as product specifications, quantity, customization requirements, and market fluctuations. You can view the basic price range on the product page of the website. If you need an accurate quotation, please provide us with the detailed information about the product you require via online customer service, email, or phone—including specifications, order quantity, target market, and more. We’ll deliver a detailed quotation to you as soon as possible, including the product unit price, total price, any price discounts applicable to orders of different magnitudes (if available), and other relevant cost details.
What are the payment terms?
✔ Telegraphic transfer or letter of credit, Western Union remittance, Alipay, etc.
Can we visit your factory?
✔ Warmly welcome. Once we have your schedule, we will assign the professional sales team to follow up on your case.
Do you provide samples?
✔ Yes, we can offer the sample.
How long is your delivery time?
✔ Generally, it takes 5-10 days if the goods are in stock. Alternatively, it takes 15-20 days if the goods are not in stock—this depends on the quantity.
Reinforcing steel stirrups
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As an essential confinement member in reinforced concrete structures, construction steel stirrups work synergistically with longitudinal reinforcing bars to effectively restrain the deformation of core concrete, enhance the shear resistance of structural members, and improve seismic capacity. They play a critical role in ensuring the overall integrity and stability of the structure.
As an essential confinement member in reinforced concrete structures, construction steel stirrups work synergistically with longitudinal reinforcing bars to effectively restrain the deformation of core concrete, enhance the shear resistance of structural members, and improve seismic capacity. They play a critical role in ensuring the overall integrity and stability of the structure.