Guangdong LiYou Steel Structure Engineering Co., Ltd. +8619147784007 liyousteelstructure@outlook.com
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When it comes to building a steel structure, the foundation is the most critical element ensuring long-term stability and safety. Liyou Steel Structure offers superior steel building foundation solutions designed for a variety of projects, from industrial warehouses to commercial spaces and residential towers. Our foundations are engineered with precision and built to withstand the test of time, providing unparalleled support to your steel structures.
Whether you're constructing a large factory or a high-rise residential building, our steel building foundations are tailored to meet the specific needs of your project. With over a decade of experience and a global presence, Liyou guarantees that every foundation we provide is durable, reliable, and engineered to the highest standards.
Durability: Designed to withstand heavy loads, adverse weather conditions, and soil variability, ensuring long-lasting performance.
Versatility: Suitable for a wide range of steel structure applications, including warehouses, factories, offices, and residential buildings.
Cost-Effective: Optimized designs that provide a strong foundation while reducing material costs.
Quick Installation: Efficient foundation designs that streamline the construction process and shorten project timelines.
Customization: Foundation solutions tailored to your specific site conditions, soil analysis, and building requirements.
Material: High-strength concrete and steel reinforcements.
Foundation Types: Slab-on-grade, pier foundation, strip foundation, mat foundation, or custom solutions based on soil tests and project needs.
Load Capacity: Designed to support varying loads, from light structures to heavy industrial buildings.
Design Compliance: Meets international construction standards, including seismic, wind, and snow load requirements.
Foundation Depth: Varies based on soil conditions and building size (typically 4-6 inches for slab foundations, deeper for piers or mat foundations).
| Quantity: | |
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Online technical support, Onsite Installation, Onsite Training, Onsite Inspection, Free spare parts, Return and Replacement, Other
graphic design, 3D model design, total solution for projects, Cross Categories Consolidation, Others
garage shed, storage closet, poultry houses, Hotel, Villa, Apartment, Office Building, Hospital, School, Mall, Sports Venues, Leisure Facilities, supermarket, Warehouse, Workshop, Park, Farmhouse, Courtyard, Other, Kitchen, Bathroom, Home Office, Living Room, Bedroom, Dining, Babies and kids, Outdoor, Storage & Closet, Exterior, Wine Cellar, Entry, Hall, Home Bar, Staircase, Basement, Garage & Shed, Gym, Laundry
steel
Guangdong, China
Modern
Lifetime
Liyou
LYB-001
CE Certification
Industrial Commercial
C.Z Shape Steel Channel
Sliding Door
Customized Color
Sandwich Panel Optional
Aluminum Alloy Sliding Window
SAP2000/AutoCAD /PKPM /3D3S/TEKLA
Hot Dip Galvanized
25-60 days
| Type | Load Capacity | Suitable For | Construction Time | Relative Cost |
|---|---|---|---|---|
| Isolated Footings | ≤500 kN | Small warehouses, sheds | 1-2 weeks | $ |
| Combined Footings | 500-2000 kN | Medium industrial buildings | 2-3 weeks | $$ |
| Raft Foundations | 2000-5000 kN | Heavy machinery buildings | 3-4 weeks | $$$ |
| Pile Foundations | 5000+ kN | High-rises, poor soil conditions | 4-6 weeks | $$$$ |
A. Load Considerations:
Dead load (self-weight): 0.5-1.5 kN/m²
Live load: 2-5 kN/m² (up to 20 kN/m² for industrial)
Wind load: 0.6-2.0 kN/m² (zone dependent)
Seismic load: Site-specific analysis
B. Soil Requirements:
Minimum bearing capacity: 150 kPa (for spread footings)
Settlement limit: ≤25mm (total), ≤12mm (differential)
C. Anchor Bolt Specifications:
Diameter: M24-M64
Embedment depth: 20-30×bolt diameter
Positioning tolerance: ±3mm
Site Preparation
Excavation to firm strata
Compaction to 95% Proctor density
Formwork Installation
Plywood thickness ≥18mm
Alignment tolerance ±5mm
Reinforcement Placement
Minimum cover: 50mm
Bar size: ∅12-∅32mm
Concrete Pouring
Grade: C25-C40
Slump: 75-125mm
Curing: 7-28 days
Grouting
Non-shrink cementitious grout
Minimum thickness: 25mm
| Component | International Standard | Chinese Standard |
|---|---|---|
| Foundation Design | EN 1992, ACI 318 | GB 50007 |
| Steel Connections | AISC 360, EN 1993 | GB 50017 |
| Soil Investigation | ASTM D1586 | GB 50021 |
| Item | Unit Cost (USD) |
|---|---|
| Earthworks | $8-15 |
| Reinforcement | $12-20 |
| Concrete | $25-40 |
| Anchor Bolts | $5-10 |
| Labor | $15-25 |
| Total | $65-110 |
Problem: Cracks in foundation
Solution: Increase reinforcement ratio to 0.8-1.2%
Problem: Anchor bolt misalignment
Solution: Use CNC-cut template (±1mm accuracy)
Problem: Differential settlement
Solution: Install grade beams (300×600mm typical)
BIM Foundation Modeling (Tekla Structures)
Laser-Guided Bolt Positioning
On-Site Quality Inspection
Turnkey Foundation Packages
FAQ
Q: Minimum concrete strength for steel building foundations?
A: C25 for light structures, C30+ for heavy industrial.
Q: How to prevent frost heave in cold climates?
A: Extend foundations below frost line + use insulated skirts.
Q: Alternative to conventional foundations?
A: Helical piles for fast installation (3-5 days).
| No | Components | Specification | ||||||
| Embedded Parts | ||||||||
| 1 | Anchor Bolt | M24 | ||||||
| 2 | High Strength Bolt | M20,10.9S | ||||||
| 3 | Common Bolt | M16 | ||||||
| 4 | Galvanized Bolt | M12 | ||||||
| 5 | Shear Nail | M16 | ||||||
| 6 | Tir rod | ∅32*2.5 | ||||||
| Main Steel Structure Parts | ||||||||
| 1 | Steel Column (Q355B) | H550*300*10*16 | ||||||
| 2 | Wind Column (Q355B) | H400*220*6*10 | ||||||
| 3 | Roof Frame Beam (Q355B) | H900~500*220*10*12 H500~650*220*8*12 | ||||||
| 4 | Crane Beam (Q355B) | H650*320/240*10*16/14 | ||||||
| 5 | Tie Bar(Q235B) | ∅168*4.0 | ||||||
| 6 | Horizontal Brace (Q235B) | ∅168*4.0 | ||||||
| 7 | Column Brace (Q235B) | ∅25 | ||||||
| 8 | Angle Brace (Q235B) | L63*5.0 | ||||||
| 9 | Roof Purlin (Galvanized) | Z280*80*20*2.5 | ||||||
| 10 | Wall Purlin (Galvanized) | C250*75*20*2.5 | ||||||
| 11 | Connecting Plate | 6mm-30mm | ||||||
| Other Steel Structure Parts | ||||||||
| 1 | Roof Panel | 50mm Rock wool Sandwich panel | ||||||
| 2 | Wall Panel | 50mm Rock wool Sandwich panel | ||||||
| 3 | Gutter | 2mm Galvanized Steel Plate | ||||||
| 4 | Down Pipe | PVC160 (Including parts) | ||||||
| 5 | Trimming | Color steel 0.5mm Gavanized steel panel | ||||||
A steel building foundation is the structural base upon which a steel building is constructed. It typically consists of a concrete slab or a series of footings designed to support the weight of the steel structure. The foundation ensures stability, strength, and durability for the entire building.
Common types of foundations used for steel buildings include:
Slab-on-Grade Foundation: A concrete slab poured directly onto the ground, most commonly used for smaller or single-story steel buildings.
Pier Foundation: Concrete piers are poured into the ground to support columns of the building, often used in areas with poor soil conditions.
Strip Foundation: Continuous strips of concrete poured along the perimeter of the building to support walls.
Mat Foundation: A thick concrete slab that covers the entire building's footprint, providing additional support in areas with weak or unstable soil.
The type of foundation depends on several factors:
Soil Conditions: Soil tests should be conducted to determine its load-bearing capacity.
Building Size and Weight: Larger or multi-story steel buildings require stronger foundations, such as deep piers or mat foundations.
Location: The climate, seismic activity, and water table levels in your area can affect the foundation choice.
Cost and Budget: Foundation types vary in cost, and your budget will influence the decision.
The depth of the foundation depends on the soil conditions and building load. Generally:
For slab-on-grade foundations, the concrete slab is typically 4 to 6 inches deep.
For pier foundations, the piers are drilled or poured 3 to 5 feet deep, depending on the soil conditions.
Mat foundations can be much thicker (12 inches or more), especially for larger buildings.
Key considerations include:
Land Clearing: The site should be cleared of vegetation, debris, and any existing structures.
Leveling: The ground must be leveled to ensure an even foundation.
Soil Testing: A geotechnical engineer should test the soil to determine its load-bearing capacity and recommend the appropriate foundation type.
Drainage: Ensure proper drainage around the foundation to prevent water accumulation that could weaken the foundation.
Soil testing helps determine:
Soil Type and Strength: Different soils (e.g., clay, sand, or rock) have varying load-bearing capacities. Understanding this helps prevent foundation settling or shifting.
Water Table: The depth of the water table can influence the foundation design to prevent water-related issues such as flooding or shifting.
Seismic Activity: Soil testing can indicate whether the area is prone to earthquakes, affecting the foundation's design.
A slab-on-grade foundation offers several benefits:
Cost-Effective: It is typically less expensive to install than other types of foundations, especially for smaller buildings.
Simple Construction: The slab is poured directly on the ground, requiring fewer materials and less labor.
Fast Installation: It can be completed relatively quickly, speeding up the overall construction process.
Level Surface: It provides a flat, stable base for the steel building and eliminates the need for additional support columns.
The time required to build a steel building foundation depends on the type of foundation and site conditions. Typically:
Slab-on-grade foundations take 1 to 2 weeks to complete.
Pier foundations or mat foundations can take 2 to 4 weeks depending on the complexity and size.
Site preparation (such as clearing, leveling, and soil testing) may add additional time.
Common issues with steel building foundations include:
Poor soil conditions: Weak or expansive soils can lead to settling or cracking of the foundation.
Water drainage issues: Improper drainage around the foundation can lead to water accumulation, causing damage over time.
Improper foundation depth: If the foundation is too shallow or improperly designed, it may not provide adequate support, leading to structural issues.
Foundation shifting or cracking: Movement due to soil settling or freezing/thawing cycles can cause cracks or misalignment in the foundation.
Yes, foundation issues can be repaired, but the method depends on the severity of the problem. Common repairs include:
Leveling the foundation using piers or slab jacking.
Reinforcing foundations with additional concrete or steel supports.
Improving drainage to prevent water damage in the future.
It's important to consult with a structural engineer to assess the issue and recommend the appropriate repair solution.
| Type | Load Capacity | Suitable For | Construction Time | Relative Cost |
|---|---|---|---|---|
| Isolated Footings | ≤500 kN | Small warehouses, sheds | 1-2 weeks | $ |
| Combined Footings | 500-2000 kN | Medium industrial buildings | 2-3 weeks | $$ |
| Raft Foundations | 2000-5000 kN | Heavy machinery buildings | 3-4 weeks | $$$ |
| Pile Foundations | 5000+ kN | High-rises, poor soil conditions | 4-6 weeks | $$$$ |
A. Load Considerations:
Dead load (self-weight): 0.5-1.5 kN/m²
Live load: 2-5 kN/m² (up to 20 kN/m² for industrial)
Wind load: 0.6-2.0 kN/m² (zone dependent)
Seismic load: Site-specific analysis
B. Soil Requirements:
Minimum bearing capacity: 150 kPa (for spread footings)
Settlement limit: ≤25mm (total), ≤12mm (differential)
C. Anchor Bolt Specifications:
Diameter: M24-M64
Embedment depth: 20-30×bolt diameter
Positioning tolerance: ±3mm
Site Preparation
Excavation to firm strata
Compaction to 95% Proctor density
Formwork Installation
Plywood thickness ≥18mm
Alignment tolerance ±5mm
Reinforcement Placement
Minimum cover: 50mm
Bar size: ∅12-∅32mm
Concrete Pouring
Grade: C25-C40
Slump: 75-125mm
Curing: 7-28 days
Grouting
Non-shrink cementitious grout
Minimum thickness: 25mm
| Component | International Standard | Chinese Standard |
|---|---|---|
| Foundation Design | EN 1992, ACI 318 | GB 50007 |
| Steel Connections | AISC 360, EN 1993 | GB 50017 |
| Soil Investigation | ASTM D1586 | GB 50021 |
| Item | Unit Cost (USD) |
|---|---|
| Earthworks | $8-15 |
| Reinforcement | $12-20 |
| Concrete | $25-40 |
| Anchor Bolts | $5-10 |
| Labor | $15-25 |
| Total | $65-110 |
Problem: Cracks in foundation
Solution: Increase reinforcement ratio to 0.8-1.2%
Problem: Anchor bolt misalignment
Solution: Use CNC-cut template (±1mm accuracy)
Problem: Differential settlement
Solution: Install grade beams (300×600mm typical)
BIM Foundation Modeling (Tekla Structures)
Laser-Guided Bolt Positioning
On-Site Quality Inspection
Turnkey Foundation Packages
FAQ
Q: Minimum concrete strength for steel building foundations?
A: C25 for light structures, C30+ for heavy industrial.
Q: How to prevent frost heave in cold climates?
A: Extend foundations below frost line + use insulated skirts.
Q: Alternative to conventional foundations?
A: Helical piles for fast installation (3-5 days).
| No | Components | Specification | ||||||
| Embedded Parts | ||||||||
| 1 | Anchor Bolt | M24 | ||||||
| 2 | High Strength Bolt | M20,10.9S | ||||||
| 3 | Common Bolt | M16 | ||||||
| 4 | Galvanized Bolt | M12 | ||||||
| 5 | Shear Nail | M16 | ||||||
| 6 | Tir rod | ∅32*2.5 | ||||||
| Main Steel Structure Parts | ||||||||
| 1 | Steel Column (Q355B) | H550*300*10*16 | ||||||
| 2 | Wind Column (Q355B) | H400*220*6*10 | ||||||
| 3 | Roof Frame Beam (Q355B) | H900~500*220*10*12 H500~650*220*8*12 | ||||||
| 4 | Crane Beam (Q355B) | H650*320/240*10*16/14 | ||||||
| 5 | Tie Bar(Q235B) | ∅168*4.0 | ||||||
| 6 | Horizontal Brace (Q235B) | ∅168*4.0 | ||||||
| 7 | Column Brace (Q235B) | ∅25 | ||||||
| 8 | Angle Brace (Q235B) | L63*5.0 | ||||||
| 9 | Roof Purlin (Galvanized) | Z280*80*20*2.5 | ||||||
| 10 | Wall Purlin (Galvanized) | C250*75*20*2.5 | ||||||
| 11 | Connecting Plate | 6mm-30mm | ||||||
| Other Steel Structure Parts | ||||||||
| 1 | Roof Panel | 50mm Rock wool Sandwich panel | ||||||
| 2 | Wall Panel | 50mm Rock wool Sandwich panel | ||||||
| 3 | Gutter | 2mm Galvanized Steel Plate | ||||||
| 4 | Down Pipe | PVC160 (Including parts) | ||||||
| 5 | Trimming | Color steel 0.5mm Gavanized steel panel | ||||||
A steel building foundation is the structural base upon which a steel building is constructed. It typically consists of a concrete slab or a series of footings designed to support the weight of the steel structure. The foundation ensures stability, strength, and durability for the entire building.
Common types of foundations used for steel buildings include:
Slab-on-Grade Foundation: A concrete slab poured directly onto the ground, most commonly used for smaller or single-story steel buildings.
Pier Foundation: Concrete piers are poured into the ground to support columns of the building, often used in areas with poor soil conditions.
Strip Foundation: Continuous strips of concrete poured along the perimeter of the building to support walls.
Mat Foundation: A thick concrete slab that covers the entire building's footprint, providing additional support in areas with weak or unstable soil.
The type of foundation depends on several factors:
Soil Conditions: Soil tests should be conducted to determine its load-bearing capacity.
Building Size and Weight: Larger or multi-story steel buildings require stronger foundations, such as deep piers or mat foundations.
Location: The climate, seismic activity, and water table levels in your area can affect the foundation choice.
Cost and Budget: Foundation types vary in cost, and your budget will influence the decision.
The depth of the foundation depends on the soil conditions and building load. Generally:
For slab-on-grade foundations, the concrete slab is typically 4 to 6 inches deep.
For pier foundations, the piers are drilled or poured 3 to 5 feet deep, depending on the soil conditions.
Mat foundations can be much thicker (12 inches or more), especially for larger buildings.
Key considerations include:
Land Clearing: The site should be cleared of vegetation, debris, and any existing structures.
Leveling: The ground must be leveled to ensure an even foundation.
Soil Testing: A geotechnical engineer should test the soil to determine its load-bearing capacity and recommend the appropriate foundation type.
Drainage: Ensure proper drainage around the foundation to prevent water accumulation that could weaken the foundation.
Soil testing helps determine:
Soil Type and Strength: Different soils (e.g., clay, sand, or rock) have varying load-bearing capacities. Understanding this helps prevent foundation settling or shifting.
Water Table: The depth of the water table can influence the foundation design to prevent water-related issues such as flooding or shifting.
Seismic Activity: Soil testing can indicate whether the area is prone to earthquakes, affecting the foundation's design.
A slab-on-grade foundation offers several benefits:
Cost-Effective: It is typically less expensive to install than other types of foundations, especially for smaller buildings.
Simple Construction: The slab is poured directly on the ground, requiring fewer materials and less labor.
Fast Installation: It can be completed relatively quickly, speeding up the overall construction process.
Level Surface: It provides a flat, stable base for the steel building and eliminates the need for additional support columns.
The time required to build a steel building foundation depends on the type of foundation and site conditions. Typically:
Slab-on-grade foundations take 1 to 2 weeks to complete.
Pier foundations or mat foundations can take 2 to 4 weeks depending on the complexity and size.
Site preparation (such as clearing, leveling, and soil testing) may add additional time.
Common issues with steel building foundations include:
Poor soil conditions: Weak or expansive soils can lead to settling or cracking of the foundation.
Water drainage issues: Improper drainage around the foundation can lead to water accumulation, causing damage over time.
Improper foundation depth: If the foundation is too shallow or improperly designed, it may not provide adequate support, leading to structural issues.
Foundation shifting or cracking: Movement due to soil settling or freezing/thawing cycles can cause cracks or misalignment in the foundation.
Yes, foundation issues can be repaired, but the method depends on the severity of the problem. Common repairs include:
Leveling the foundation using piers or slab jacking.
Reinforcing foundations with additional concrete or steel supports.
Improving drainage to prevent water damage in the future.
It's important to consult with a structural engineer to assess the issue and recommend the appropriate repair solution.
