Cutting & Bending
Reinforcing bars (also called “rebar”) are ribbed steel rods that reinforce concrete structures by acting like a “skeleton” around which the concrete is set or fixed. Such reinforcement is necessary because unreinforced concrete has low tensile strength and will collapse under the structural strain Rronifer has the capacity to process 230 tons per day, and this enables our customers, in addition to the quality they get from very sophisticated machines we also offer speed and delivery, this helps speed up the construction process.
Lattice Griders
Lattice Girder Specifications & Features
Our Lattice Girders are engineered for strength, durability, and precision in a variety of construction and structural applications. The girders are designed to provide excellent load-bearing capacity while maintaining cost-effectiveness and ease of installation. Below are the key details about our lattice girder offerings:
Girder Specifications
- Girder Height: 90 mm
- Standard Fittings:
- Lower Chord: Ø 5-7 mm (ribbed with B500A reinforcing steel)
- Upper Chord: Ø 5-7 mm (ribbed with B500A reinforcing steel)
- Diagonals: Ø 4-6 mm (smooth surface)
- Distance Between Welding Points: 200 mm
- Girder Width: 90 mm (minimum)
- Girder Mass:
- 0.727 kg/m for 5 mm lower chord, 4 mm diagonals, 5 mm upper chord
- 1.08 kg/m for 6 mm lower chord, 5 mm diagonals, 6 mm upper chord
- 1.24 kg/m for 6 mm lower chord, 5 mm diagonals, 7 mm upper chord
Material Properties
- Standard Reinforcing Steel: Normal ductile (A) reinforcing steel B500A
- Yield Strength (Re): 500 MPa (N/mm²)
- Tensile Strength / Yield Stress Ratio (Rm/Re): 1.05
- Elongation at Tensile Strength (Agt): 2.5%
The steel used in the lattice girder construction is designed to withstand high stress while maintaining flexibility. The ribbed bars (lower and upper chords) provide additional surface area for better bonding in reinforced concrete, ensuring optimal performance in structural applications.
Girder Design Options
Our lattice girders are highly customizable to meet specific project requirements, with varying diameters for the chords and diagonals:
Girder 1
- Girder Height: 90 mm
- Lower Chord Diameter: 5 mm
- Diagonal Diameter: 4 mm
- Upper Chord Diameter: 5 mm
- Mass: 0.727 kg/m
Girder 2
- Girder Height: 90 mm
- Lower Chord Diameter: 6 mm
- Diagonal Diameter: 5 mm
- Upper Chord Diameter: 6 mm
- Mass: 1.08 kg/m
Girder 3
- Girder Height: 90 mm
- Lower Chord Diameter: 6 mm
- Diagonal Diameter: 5 mm
- Upper Chord Diameter: 7 mm
- Mass: 1.24 kg/m
Customization & Unusual Quality Options
While our standard lattice girders meet most common structural demands, custom specifications are available upon request. These may include:
- Other Steel Qualities: Our girders can be manufactured using different grades of steel based on your requirements, ensuring enhanced performance characteristics such as higher tensile strength or corrosion resistance.
- Surface Treatment: Various surface finishes are available, including galvanized or painted coatings for additional durability and weather resistance.
- Custom Welding Point Distances: The standard 200 mm distance between welding points can be adjusted to meet specific structural needs for your project.
Production & Quality Control
Each lattice girder is marked with a product identification code (e.g., 9/28) to track its production history. Our rigorous quality control process, overseen by Armir Avdyli, ensures that every girder meets the required standards and specifications.
Applications
Lattice girders are essential components in a wide range of structural applications, including:
- Bridges
- Overhead Cranes
- Industrial Platforms
- Buildings and Infrastructure
- Precast Concrete Frames
Their high strength-to-weight ratio makes them ideal for situations where both stability and lightweight design are necessary.
Diaphragm Walls
Diaphragm Walls (Diafragma) are essential components in underground construction, providing both structural support and water-tightness. Rronifer specializes in the fabrication of high-quality diaphragm panels, custom-designed to meet the specific needs of each project. With our extensive expertise, we deliver reliable solutions for underground structures such as basements, tunnels, and retaining walls.
Pile Cages
Crafted from high-quality steel reinforcement bars (rebar), our pile cages are specifically engineered to withstand the forces encountered in deep foundation applications. Each cage is meticulously fabricated to precise engineering specifications, ensuring compatibility with a wide range of pile sizes and configurations.
Our pile cages feature a carefully arranged framework of rebar, expertly tied together to form a strong, cage-like structure. This design optimizes the distribution of reinforcement along the length of the pile, enhancing its resistance to bending, shear, and torsional forces.
