POLMEK Group

STRUCTURAL STEEL

" We Manufacture Durable Structures with Expert Solutions and Quality "

In the modern construction industry, steel construction systems are increasingly preferred due to their numerous advantages. Steel structures provide safe, durable, and long-lasting solutions while being lightweight yet highly resistant. With their high load-bearing capacity and flexible design possibilities, they serve as an ideal structural system even for projects requiring large spans.

Extensively utilized in industrial facilities, commercial buildings, and residential projects, steel construction systems enable efficient assembly processes, significantly reducing construction time. The prefabrication of components in controlled factory environments minimizes on-site workmanship errors and accelerates project completion. Their modular nature allows for seamless adaptation to various dimensions, designs, and functional requirements.

Furthermore, steel building materials are 100% recyclable, reinforcing their role as an environmentally sustainable construction solution. Steel systems contribute to energy efficiency and align with sustainable building practices. With low long-term maintenance costs, steel structures present a cost-effective investment. When properly coated for fire and corrosion resistance, they ensure reliable and long-lasting performance over time.

STEEL STRUCTURE TYPES

Steel structure types are typically classified based on the types of steel used, the type of structure, and its intended purpose. These categories vary according to structural requirements and the application areas. The types of steel structures are as follows;

Truss Structure: Trusses are lightweight yet strong beams made of small cross-section rods arranged in a hollow design. They offer high bending resistance, minimal deflection, and can span large distances. Common configurations include triangles, rectangles, trapezoids, and arches. They are widely used in roof systems, factories, exhibition halls, and bridges.

Arches and Shell Structures: These structures consist of curved plates with excellent load-bearing capacity. They can span large areas without intermediate supports, serving both as load-bearing and enclosing elements. Their lightweight yet durable design ensures material efficiency. Common applications include roofs, industrial structures, cooling towers, and storage tanks.

Portal Steel Structure: A durable and cost-effective system made of steel beams and columns. Its simple design allows for easy manufacturing, quick assembly, and lower costs. It is commonly used in factories, warehouses, offices, supermarkets, and public buildings. Advantages include efficient force transmission, safety, and durability.

Space Frames: These are spatial bar systems where load-bearing elements are connected through nodes. They offer high seismic resistance and are easy to assemble due to prefabrication. They are ideal for sports halls, theaters, exhibition centers, and large-span roof structures. Despite being lightweight, they provide excellent strength.

Hybrid Steel Structure: A combination of steel and concrete that provides high strength and flexibility. Shear walls and frame systems allow for carrying large loads efficiently. They are commonly used in public buildings, industrial facilities, and high-rise residential projects. These structures ensure durability and long service life for complex architectural designs.

BASIC COMPONENTS OF STEEL STRUCTURE

Basic components ensure the durability, safety and longevity of steel structures. Depending on the purpose of the structure, additional components may also be included.

1. Load-Bearing System Elements

• Columns: Vertical load-bearing elements that transfer vertical loads to the foundation.
• Beams: Horizontal load-bearing elements that distribute loads between columns.
• Slabs and Floors: Horizontal structural components that transfer floor loads to beams.

2. Connection Elements

• Bolts: Used to connect steel components.

• Welded Connections: Fusion-welded joints used to join steel elements.

• Pins and Rivets: Special fasteners, though rarely used in modern construction.

3. Stability Elements

• Bracings (Diagonals): Enhance the structural rigidity, especially against wind and seismic loads.

• Buckling-Resistant Elements: Additional support elements that prevent columns and beams from buckling.

4. Foundation System

• Reinforced Concrete Foundation: Used to transfer the loads of the steel structure to the ground.

• Steel Anchor Plates: Ensure a secure connection between steel columns and the foundation.

5. Cladding and Protection Elements

• Roof Cladding: Used to protect the steel structure from external weather conditions (e.g., metal sheets, sandwich panels).

• Facade Cladding: Exterior surface materials for aesthetics and insulation.

• Corrosion Protection (Painting, Galvanization): Surface treatments applied to protect steel structures from rust.

MANUFACTURING & QUALITY CONTROL

The production of steel components is the process of transforming steel into specific structural elements. This process consists of various stages that require high precision and quality. We provide comprehensive, efficient, and flexible services based on the needs of our customers, developing tailored solutions for each project before moving to the manufacturing stage. We place great importance on ensuring the perfection of the manufacturing process and that all workflows are completed on time. The key production steps are as follows:

• Lofting and Numbering: Modeling and marking components according to technical drawings.

• Cutting and Smoothing: Cutting the steel to the desired dimensions and smoothing the surface.

• Shaping and Edge Processing: Giving the steel the necessary geometric form and improving the edge quality.

• CNC Machining: Cutting, drilling, and shaping processes are carried out with high precision using CNC machines.

• Hole Drilling and Welding: Preparing connection points and joining components.

• Component Assembly and Pre-Assembly: Assembling steel elements for pre-assembly and checking them.

• Round Pipe Component Processing: Cutting, bending, and welding steel components in pipe form.

• Quality Control: Every stage of the production process is meticulously checked. Production is carried out according to the specific requirements of the project, with quality control performed at every step. Throughout the production process, compliance with high-quality standards is ensured, and production is aligned with the project specifications.

• Shipment: After quality control, the produced steel components are packaged and made ready for shipment. They are safely delivered to the targeted location using appropriate transportation methods.

STEEL STRUCTURE INSTALLATION

After the production process, which is carried out according to your project's drawings, if you do not have an installation team, we offer installation services with our expert team. Our company, which provides steel structure installation services worldwide, combines experience and sector-specific knowledge in all types of projects. When installation is requested, our expert team works to complete your projects on time and in accordance with high-quality standards. Thanks to our extensive experience, we provide reliable and efficient solutions for steel structure installation of any scale.

STEEL STRUCTURE CUSTOMIZATION

Steel structures can be tailored to meet the specific needs of each project. To provide the most suitable solutions for your needs and project requirements, we customize the design and production processes of steel structures. By considering project scale, intended use, and environmental factors, we ensure maximum efficiency and safety in every detail.

The steel structure customization process includes the following elements:

Custom Designs and Solutions: Each project has unique requirements. Steel components are specially designed and manufactured based on customer requests. Whether for industrial facilities or commercial buildings, unique designs are developed for each project.
Material Selection: Steel materials can be customized based on the project requirements. Steel alloys are chosen according to factors such as durability, flexibility, and environmental considerations. Additionally, the resistance of steel to corrosion is critical for long-lasting structures.
Custom Dimensions and Modifications: The dimensions of steel components can be customized according to the project’s needs. Columns, beams, connections, and other elements are produced in specific sizes and modified as needed to fit the project.
Calculations and Planning: Steel structures are designed based on accurate calculations. This ensures the maximum durability, safety, and functionality of each component.
Customization for Installation and Assembly Needs: The assembly of steel structures can be customized based on the characteristics of the project site. The methods for transporting, assembling, and placing the steel components are adapted according to the project's space and logistical requirements.

ADVANTAGES OF STEEL STRUCTURES

Steel structures are widely preferred in the construction industry due to their many advantages. Here are the key benefits of steel structures:

1.High Strength and Durability

• Steel structures do not easily bend, deform, or break
• They are highly resistant to harsh weather conditions such as strong winds and earthquakes.
• Material consumption is lower compared to other types of structures, significantly reducing the weight of the building.

2. Fast and Easy Construction

• Steel structures can be built much faster than concrete and wooden structures.

• The necessary steel components are pre-engineered and manufactured in advance, making them ready for assembly.

3. Wide Open Spaces and Flexible Design

• Steel structures can create large open spaces without the need for supporting columns.

• Smaller columns and beams allow for greater interior design freedom.

• Structural modifications can be easily made, and extensions can be added effortlessly.

4. Earthquake and Harsh Condition Resistance

• Their flexible structure provides a highly earthquake-resistant system.

• During an earthquake, steel structures absorb energy, preventing collapse.

5 Long Lifespan with Coating Options

• Stainless steel: Offers high corrosion resistance, making it ideal for outdoor applications.

• Galvanized steel: Coated with zinc to provide extra protection against rust.

• Painted steel: Enhances aesthetics while also offering corrosion protection.

6. Dismantlable and Recyclable Material

• Steel structures can be dismantled, and the materials can be reused.

• They are 100% recyclable, making them environmentally friendly.

Easy Maintenance and Longevity

• Construction defects can be easily detected and corrected during the building phase.

• With proper and regular maintenance, steel structures can be used for many years.

STEEL GALVANIZED COATING AND PAINTING

Steel products are made long-lasting and durable by galvanizing and painting processes. Galvanizing provides high resistance to corrosion of steel, thus increasing the durability of structures. Painting provides an aesthetically appealing appearance and provides an additional layer of protection against environmental effects. These coating processes ensure that steel products are resistant to external environmental conditions and can be used efficiently for many years.

Advantages:

• Corrosion Resistance: Galvanized coating protects steel against moisture, air, chemicals and other external factors.

• Long Life: Painting and galvanized coating extend the life of steel and reduce maintenance costs.

• Aesthetic Appearance: Painting provides an aesthetic appearance to products and is compatible with different color options.

• Low Maintenance Needs: Galvanized and painting processes reduce maintenance requirements and ensure less frequent maintenance.

• Resistance to Environmental Conditions: Galvanized and painting make steel more resistant to weather conditions and environmental factors, so structures are protected against external effects for longer.

Situations Where Steel Requires Galvanizing and Painting:

Corrosion Risk Environments: Steel is prone to rust when exposed to moisture, salty water, or chemicals. Galvanizing and painting help protect steel against corrosion, especially in coastal areas, industrial sites, or locations where chemical processes take place.
Outdoor Use: When steel structures are used outdoors, they must withstand environmental factors such as sunlight, rain, wind, and temperature changes. Galvanizing and painting make steel more resistant to these conditions.
Aesthetic Requirements: Especially for visible steel structures, an aesthetic appearance may be required. Painting provides steel with an aesthetic color and texture, making the structure harmonize with its surroundings. The aesthetic needs of visible structures make painting a crucial requirement.
Long-Term Durability Requirements: Steel can deteriorate over time with prolonged use. Galvanizing extends the steel’s lifespan by protecting it from external factors, while painting adds an additional layer of protection.
Exposure to Chemicals: When steel products are exposed to chemicals, galvanizing and painting form a protective barrier, preventing damage from chemicals.
Ease of Maintenance: Galvanizing and painting reduce the need for frequent maintenance, which lowers long-term costs and improves the structure’s efficiency.