What is steel structure? To be specific, steel structures are essential components in many types of buildings and infrastructures, providing the necessary strength and stability to withstand various environmental stresses, including wind, earthquakes, and heavy loads. Here, you can explore the diverse types, benefits, and applications of steel structures, and discover why they are the top choice for your construction projects. Let’s dive into the world of steel structure and see how it can elevate your projects!
Project Cases: Steel Structure Solutions for Diverse Applications
Warehouse in the Philippines
Dimensions: 20m (length) x 20.5m (width) x 9m (height)
Application: Grain management warehouse
The client required a robust and stable structure to facilitate efficient grain management. Our team provided a one-stop solution, covering all aspects of the steel structure warehouse – from material selection to assembly guidance.
Hangar in Somalia
Dimensions: 60m (length) x 66m (width) x 25m (height)
Application: Aircraft hangar
In Somalia, we provided a custom-designed grid steel structure for an aircraft hangar, featuring a single-layer sky-blue color steel tile with additional lighting panels. The hangar steel structure offers enhanced structural integrity and allow for large open spaces, crucial for hangar applications.
Workshop in Chile
Dimensions: Custom design to accommodate extended workspace
Application: Heavy machinery production workshop
For a project in Chile, we constructed steel structure workshops equipped with 50-ton overhead cranes, tailored for machinery manufacturing. This facility provides ample space and the structural support required for high-capacity lifting and handling of heavy components.
Poultry Shed in New Zealand
Dimensions: 30m (length) x 12m (width) x 5m (height)
Application: Poultry Shed
This poultry shed in New Zealand is designed with a portal steel frame structure, tailored to meet the specific needs of poultry farming. With a total area of 360 square meters, the steel structure shed is compact yet spacious enough for efficient poultry management.
Different Types of Steel Structures for Sale
Various types of steel structures are utilized across different industries and applications, each with unique characteristics suited to specific needs. Here are the primary types of steel structural systems used in construction and civil engineering:
Warehouses
Workshops
Sheds
HangarsPortal Frame Steel Structure
The portal frame steel structure is characterized by its use of solid web steel frames with either uniform or variable cross-sections as the load-bearing elements. This type of steel structure for sale typically features a lightweight roof and wall panels, allowing for the inclusion of skylights, ventilators, and lighting panels to enhance ventilation and natural light.
Advantages:
Large Span with Minimal Steel UsePortal steel frames in a single-span structure can achieve widths of up to 30-35 meters, while optimizing steel usage, making them ideal for factories requiring extensive, open space. For example, a 30-35 meter span steel frame typically uses only 11-13 kg of steel (Q345B grade) per square meter, which is remarkably efficient.
Variable Cross-Section Design for Enhanced StabilityThe large span steel structure can utilize variable cross-sections, which optimize steel usage while maintaining strong flexural performance in beams and columns. The portal frame structure’s high rigidity and resilience make it suitable for areas prone to severe weather conditions like high winds and earthquakes.
Compatibility with Various CranesPortal frames can accommodate a range of crane types, from overhead cranes to gantry cranes. This compatibility makes portal frames versatile for industries that require lifting equipment for production.
Lightweight RoofingPortal frame structures often incorporate lightweight roofing panels, which significantly reduce the vertical loads transmitted to the foundation. This reduction in weight not only minimizes seismic impact but also leads to considerable savings in foundation costs.
Office complexes
Multi-story industrial plants
Shopping mallsMulti-Layer Steel Frame Structure
The multi-layer steel frame structure is a robust construction method that employs a steel framework extensively in various types of buildings. This design is particularly suitable for residential, commercial, and industrial facilities that require multiple floors.
Advantages:
Flexibility in DesignThe steel frame structures can adapt flexibly to various architectural layouts. This flexibility allows for the efficient arrangement of larger open spaces. Moreover, steel frames can accommodate a diverse array of architectural styles, from conventional designs to complex forms, thus better fulfilling your expectations.
Lightweight StructureSteel frames are significantly lighter than traditional concrete structures, which results in reduced vertical loads transmitted to the foundation. This lightweight characteristic is particularly advantageous during seismic events, as it minimizes the seismic forces acting on the structure.
Efficient ProductionThe components of steel frame structures, such as beams and columns, are easily standardized and prefabricated in factories. This level of standardization ensures high product quality and precise control over production timelines.
Aircraft hangarsStorage sheds
Grandstand awningsGrid Steel Structure
Steel grid structures for sale are known for their excellent spatial load distribution, lightweight nature, and high rigidity, along with excellent seismic performance. The specific form of the grid can vary, but all members connect through bolt joints to create a cohesive framework, making installation efficient.
Advantages:
Exceptional Stability and ReliabilitySteel grid structures exhibit excellent overall integrity and spatial rigidity, making them remarkably stable. They can accommodate both single-direction and bi-directional large column spacing, allowing for large-span roofs without compromising structural safety. In fact, most large-span roof projects have utilized steel grid structures due to their high reliability.
Efficient Material UtilizationTypically, the amount of steel required for a grid structure is comparable to that of reinforced concrete under similar conditions, allowing for a substantial reduction in concrete usage – up to 70-80% less weight. Compared to traditional steel structures, steel grid systems can save 20-50% in steel materials.
Optimal Space UtilizationSteel grid structures are designed with a high span-to-height ratio, typically ranging from 1/14 to 1/20, compared to traditional steel structures with ratios of 1/8 to 1/10. This capability allows for lower heights, which not only saves on construction costs but also enhances the usability of space within the structure.
Versatile Aesthetic DesignSteel grid structures can be tailored to meet various architectural demands, providing an aesthetic appeal that is both functional and attractive.
How to Start a Steel Structure Project
Building a steel structure involves several important steps that require careful planning and execution. If you are considering a steel structure project, this guide will provide you with a clear understanding of the process.
Step 1. Define the Purpose and Requirements
Identify the purpose of your steel structure building. This could range from industrial use to commercial buildings or warehouses. Consider the following:
- Load Requirements: Understand the loads the structure will support, including live loads (e.g., people and equipment) and dead loads (the structure’s own weight).
- Dimensions: Specify the overall dimensions, including height, width, and length.
- Building Codes: Check local regulations and building codes that may affect the design and construction.
Step 2. Consult a Structural Engineer
Engaging a qualified structural engineer is a crucial step. They will assist with:
- Designing the Structure: Developing detailed design plans that meet your requirements while ensuring safety and compliance.
- Material Calculations: Determining the steel structure types and amounts of steel needed for the project.
- Safety Assessments: Evaluating the design for stability and safety.
Step 3. Create a Construction Plan
A detailed construction plan is necessary for a successful project. Include the following elements:
- Timeline: Establish a realistic schedule for each construction phase, from the foundation to the completion of the structure.
- Budget: Prepare a budget that covers materials, labor, equipment, and potential unexpected costs.
- Site Preparation: Plan for site preparation, which may involve clearing land and leveling the ground.
Step 4. Source Quality Steel Materials
Selecting quality materials is essential for the durability of the structure. Consider the following:
- Steel Grades: Choose appropriate steel grades based on your design requirements and environmental conditions.
- Supplier Selection: Work with reputable steel structure suppliers who can provide reliable materials that meet industry standards.
- Customization: If necessary, discuss customized steel components with your steel structure manufacturer.
Step 5. Construct the Foundation
The foundation provides essential support for the steel structure. Key steps include:
- Excavation: Prepare the site according to the foundation design.
- Footings: Install concrete footings that support the steel columns and beams.
- Quality Checks: Ensure the foundation is built according to specifications to avoid future issues.
Step 6. Assemble the Steel Frame
With the foundation ready, you can begin assembling the steel frame. This process includes:
- Column Installation: Erect vertical steel columns, ensuring they are level and securely anchored.
- Beam Placement: Install horizontal beams to connect the columns, forming the framework.
- Bracing: Add bracing for extra stability, especially in areas prone to high winds or seismic activity.
Step 7. Enclosure and Finishing
After completing the frame, focus on enclosing the structure and making final adjustments:
- Wall Panels: Install wall panels made of steel or other materials, depending on your design.
- Roofing: Choose a roofing system suited to the structure’s purpose and environment.
- Interior Finishing: Complete any necessary interior work based on the intended use of the structure.
Step 8. Conduct Inspections
Regular inspections are vital throughout the construction process to ensure compliance with safety standards and regulations:
- Ongoing Inspections: Schedule inspections at different construction stages to identify and address issues early.
- Final Inspection: Perform a final inspection upon completion to confirm that the structure meets all requirements.
Step 9. Plan for Maintenance
After completing the steel structure, ongoing maintenance is important to ensure its longevity. Key actions include:
- Regular Inspections: Conduct routine inspections for any signs of wear or structural issues.
- Protective Measures: Apply protective coatings or paint to prevent rust, especially in harsh environments.
- Documentation: Keep records of inspections, maintenance, and repairs for future reference.
What Is The Price of Steel Structure?
The price of steel structures varies widely based on design complexity, materials, labor, and site conditions. Here’s a breakdown of estimated prices for different steel structure system types:
Small-sized:For designs covering 200-999 square meters, such as simple warehouses or small industrial buildings, costs typically range from $11,000 to $55,000. (Note: This estimate includes the primary steel framework, though it may not cover finishing work, roofing, or additional features.)
Medium-sized:For mid-sized projects with an area of 1,000-3,000 square meters, expect a cost of $55,000 to $165,000. (Note: This price generally includes the steel frame, and can go higher with some additional work.)
Large-sized:Large-scale steelcraft structures exceeding 3,000 square meters typically start at $165,000. (Note: This price is for the main steel frame, can go higher depending on complexity and specific project requirements.)
These estimates provide a general overview of structural steel prices, but several key factors affect the total cost of building a steel structure. In the following we explore these factors in detail to provide a clearer understanding of what influences steel structure construction cost.
Factors Influencing the Cost of Steel Structures
Design Complexity
Structures with unique architectural features, additional reinforcements, or multiple floors require more material and labor, increasing the steel structure cost per square meter. Considerations include:
- Size and Scale: Larger and taller buildings require more structural support, which increases material costs.
- Architectural Features: Elements like large openings, curved sections, or specialized framing can add to the overall cost due to higher steel structure fabrication and assembly requirements.
Material Costs
The cost of structural steel prices fluctuates based on market demand, steel grades, and other economic factors. Some factors impacting material costs are:
- Type and Grade of Steel: Different steel grades are used depending on the structure’s design requirements, with high-strength or corrosion-resistant steel generally costing more.
- Market Fluctuations: Structural steel prices are subject to change based on market conditions, geopolitical factors, and global supply and demand.
Site Conditions
The location and condition of the construction site can also impact steel structure costs per square meter. Important factors include:
- Site Accessibility: Remote or challenging sites may incur additional logistical costs.
- Site Preparation: If the site requires extensive groundwork, such as leveling or soil testing, this will add to the steel structure construction cost.
Foundation and Structural Support
The foundation of a steel structure system affects the overall steel structure construction cost, especially in areas with challenging soil conditions:
- Foundation Type: Larger structures or those on unstable soil may require more extensive foundations, increasing costs.
- Reinforcement Needs: Structures that require additional support to meet design requirements will incur higher costs.
Additional Features and Finishing Costs
Finishing elements also contribute to the total steel structure cost. These include:
- Roofing and Wall Panels: Steelcraft structures commonly use metal roofing and wall panels, though other materials may be chosen based on function or climate.
- Insulation and Interior Work: Insulation, electrical work, and interior finishes may be required depending on the intended purpose.
- Permits and Inspection Fees: Local building permits and inspection fees add to the steel structure price, depending on regulatory requirements.
Consulting with experienced steel structure manufacturers can help you understand these factors more clearly and obtain a quote tailored to your project. If you’re ready to budget for your industrial steel structure project, contact us today! Our technical manager will conduct a detailed analysis to create a solution tailored to your projects, helping you reduce costs and maximize benefits. Reach out now for a personalized consultation!
Main Components of Steel Structures
In this section, we’ll walk you through the main components of steel structure systems, explaining their roles and significance in building a stable and robust framework.
Columns
ColumnsColumns are vertical structural members that bear and transfer the weight of the structure to the foundation, designed to handle axial loads and resist bending forces, ensuring stability.
Types of Structural Steel Columns:
- I-Beams and H-Beams: Commonly used in columns due to their ability to bear heavy loads and resist buckling.
- Hollow Structural Sections (HSS): These have high resistance to torsion, making them ideal for structures with complex designs.
Beams
BeamsBracing provides lateral support, maintaining stability against forces like wind and seismic activity. Integrated into columns, beams, and trusses, bracing prevents buckling and ensures resistance to dynamic loads.
Common Types of Structural Steel Beams:
- I-Beams: Strong and efficient, supporting heavy loads with minimal material.
- T-Beams: Used in floor and ceiling frameworks, offering space for other installations.
- Box Beams: Closed, rectangular beams that provide greater stability and resistance to twisting.
Bracing
BracingPurlins and girts are secondary structural elements that support roofing and wall cladding. Purlins run horizontally along the roof structure, providing a base for attaching roofing sheets, while girts offer similar support along the walls.
Types of Purlins and Girts:
- Z-Purlins: Used to create overlaps for stronger roofing structures.
- C-Purlins: Often used in wall framing to provide lateral support.
Connections
ConnectionsSteel structure components are assembled using various connection methods, including welding, bolting, and riveting.
Structural Steel Connection Types:
- Bolted Connections: Easy assembly and disassembly, ideal for modular construction.
- Welded Connections: Strong, continuous bond for permanent structures.
- Pinned Connections: Allow slight rotations, perfect for trusses and frames.
Purlins and Girts
Purlins and GirtsBracing provides lateral support, maintaining stability against forces like wind and seismic activity. Integrated into columns, beams, and trusses, bracing prevents buckling and ensures resistance to dynamic loads.
Types of Bracing in Steel Structures:
- Diagonal Bracing: Often seen as “X” or “K” configurations, this is common in high-rise buildings.
- V-Bracing and Chevron Bracing: Used in frames, these provide a balanced force distribution across columns.
Foundations and Anchor Bolts
Foundations and Anchor BoltsThe foundation supports the entire structure, transferring loads to the ground. Steel structures are anchored to the foundation with heavy-duty bolts to prevent movement.
Types of Bolts Used in Structural Steel Construction:
- J-Bolts: Shaped like a “J” for extra grip, commonly embedded in concrete foundations.
- L-Bolts: Similar to J-bolts but with an “L” shape, offering excellent anchoring capability.
4 Reasons to Choose Us for Your Steel Structure Project
When it comes to building a reliable, durable, and cost-effective steel structure, choosing the right structural steel manufacturers is essential. Here are some key reasons why you should consider Aicrane for your steel structure project.
Use of High-Quality Materials
We use only premium-grade steel and components that meet industry standards. From structural steel beams to galvanized fasteners, every material used in our steel structures is chosen for its strength, durability, and resilience against the elements.
Customizable Designs to Meet Your Needs
We are dedicated to creating customized steelcraft structures that suit your specific needs. Whether you’re looking for a warehouse, a workshop, or a multi-story building, we work closely with you to design and engineer a structure that meets your operational and aesthetic needs.
Advanced Production Equipment for Quality Assurance
Our state-of-the-art production equipment allows us to maintain high standards of fabrication and assembly. With advanced machinery for cutting, welding, and coating, we ensure precision and consistency across all our steel structures, minimizing defects and ensuring long-lasting durability.
Comprehensive After-Sales Support
We provide a range of after-sales services to ensure the continued performance and durability of your steel structure. Our team is available to address any issues, provide maintenance advice, and more.
FAQs for Steel Structures
What is steel structure design?
What is structural steel made of?
What is the main advantage of structural steel?
How to design a steel structure?
Designing a structure of steel involves several steps:
- Load Analysis: Determine the loads the structure will support, including dead loads, live loads, and environmental loads.
- Material Selection: Choose appropriate steel grades and types based on strength and environmental factors.
- Structural Analysis: Use software or manual calculations to analyze how the structure will behave under various loads.
- Detailing: Create detailed drawings that specify dimensions, connections, and materials for construction.
- Compliance Check: Ensure the design meets local building codes and standards.
Why is steel structure construction more preferred?
Steel structure construction is preferred due to:
- Strength and Durability: Structural steel structures can withstand harsh environmental conditions and heavy loads.
- Speed of Construction: Prefabricated steel structure components allow for quicker assembly on-site, reducing construction time.
- Design Flexibility: Steel can be easily shaped and configured to meet various architectural needs.
- Sustainability: Steel is recyclable, making it an environmentally friendly choice in construction.
How are steel structural shapes produced?
Steel structural shapes are produced through a series of processes:
- Casting: Molten steel is poured into molds to form ingots or slabs.
- Hot Rolling: The cast steel is heated and passed through rollers to form specific shapes, such as I-beams, angles, and channels.
- Cold Forming: Some shapes may be formed at room temperature for improved dimensional accuracy and surface finish.
How long do steel structures last?
Steelcraft structures can last 50 years or more with proper maintenance. They are designed to withstand environmental conditions, heavy loads, and wear over time.
Factors Influencing Lifespan:
- Quality of Steel: High-quality, corrosion-resistant steel increases longevity.
- Protective Coatings: Applying anti-corrosion coatings and fireproofing can extend the structure’s life.
- Maintenance: Regular inspections and timely repairs for rust or structural wear ensure long-term durability.
- Environmental Conditions: Structures exposed to harsh climates may require additional protective measures but can still achieve a long lifespan with proper care.
With routine maintenance and protective measures, structural steel structures are highly durable, making them a cost-effective and sustainable choice for long-term applications.
