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🌍 Earthquakes strike without warning — but preparedness begins with smart design.
Amid increasing seismic activity and climate-related risks, designing earthquake-resistant steel structures is no longer an option, but a necessity. It ensures not only safety but also long-term operational stability.
At SEICO, we apply advanced seismic design principles to create steel buildings that are both structurally resilient and architecturally refined.
1. Choosing the Right Structural System
✅Steel frames combined with K-bracing or shear walls significantly improve lateral stiffness and control deformation under seismic loads.
✅For high-rise buildings, frame-wall hybrid systems offer an optimal balance between stiffness and ductility, ensuring better energy dissipation during earthquakes.
2. Smart Structural and Geometric Design
✅Avoid asymmetrical layouts or “soft stories” between floors, as they are vulnerable under seismic stress.
✅Short columns should be avoided due to their brittle failure modes.
✅Tightly connected structural elements help reduce relative displacement and enhance overall stability.
3. Enhancing Ductility for Energy Dissipation
✅Ductile detailing allows the structure to absorb seismic energy instead of collapsing.
✅Joints and connections should be designed for flexibility, and high-ductility steel should be used to maintain integrity under cyclic loads.
4. Designing Earthquake-Resistant Foundations
✅Select spread footings or pile foundations to better distribute seismic loads.
✅On weak soils, ground improvement techniques may be necessary to reduce risks such as liquefaction or differential settlement.
5. Dynamic Analysis According to Standards
✅Design must comply with TCVN 9386:2012 or international standards such as ASCE 7 or Eurocode 8.
✅Accurate dynamic analysis, including response spectrum evaluation and inter-story drift checks, ensures structural performance during seismic events.
6. Implementing Seismic Protection Technologies
✅Seismic technologies such as base isolators help decouple the structure from ground motion.
✅Energy dissipating devices (dampers) absorb seismic energy, reducing the force transferred to the structural frame.
SEICO – Steel Solutions for a Safer Future
With deep technical expertise and practical experience, SEICO delivers steel structure solutions that meet international standards while optimizing safety, cost, and performance.
We’re ready to support your project from design through to long-term resilience.
Contact SEICO today for customized structural solutions tailored to your needs.
Explore more sustainable and safe building solutions at seico.vn
🌍 Động đất xảy ra không báo trước – nhưng bạn có thể chuẩn bị từ hôm nay!
Trước bối cảnh biến đổi khí hậu và hoạt động địa chất gia tăng, việc thiết kế công trình thép có khả năng chịu động đất không chỉ là lựa chọn thông minh mà còn là yêu cầu bắt buộc để đảm bảo an toàn và vận hành ổn định lâu dài.
Tại SEICO, chúng tôi áp dụng các nguyên tắc thiết kế kháng chấn hiện đại giúp công trình vừa vững vàng, vừa thẩm mỹ.
1. Lựa Chọn Hệ Kết Cấu Chịu Lực Phù Hợp
✅ Khung thép kết hợp giằng chữ K hoặc vách cứng giúp tăng độ cứng ngang và kiểm soát biến dạng khi có rung chấn.
✅ Khung - vách kết hợp là giải pháp phổ biến cho nhà cao tầng, tối ưu cả độ cứng và độ dẻo.
2. Thiết Kế Cấu Trúc & Hình Dạng Hợp Lý
✅ Tránh bố trí bất đối xứng hoặc tạo “tầng mềm”.
✅ Không dùng cột ngắn vì dễ phá hủy giòn khi có chấn động.
✅ Ưu tiên kết cấu liên kết chặt chẽ để giảm chuyển vị giữa các phần công trình.
3. Dẻo Hóa Kết Cấu Để Tiêu Tán Năng Lượng
✅ Dùng thép có độ dẻo cao, thiết kế khớp nối linh hoạt để công trình hấp thụ năng lượng thay vì gãy đổ.
✅ Tăng khả năng biến dạng dẻo giúp kết cấu phục hồi sau động đất.
4. Móng Vững – Chống Rung Tốt
✅ Chọn móng băng hoặc móng cọc để phân phối tải trọng động đất hiệu quả.
✅ Với nền đất yếu, cần gia cố nền móng nhằm giảm nguy cơ sụt lún hoặc hóa lỏng đất.
5. Tính Toán Kháng Chấn Theo Tiêu Chuẩn
✅ Thiết kế theo tiêu chuẩn TCVN 9386:2012 hoặc ASCE 7 / Eurocode 8.
✅ Tính toán phổ phản ứng và kiểm tra chuyển vị tầng để đảm bảo dao động không vượt giới hạn.
6. Áp Dụng Công Nghệ Giảm Chấn Tiên Tiến
✅ Giảm chấn đàn hồi (base isolators) giúp tách chuyển động nền đất khỏi công trình.
✅ Bộ tiêu tán năng lượng (dampers) giúp hấp thụ rung động, giảm tải trọng lên kết cấu chính.
SEICO – Thiết Kế Thép Vững Vàng Trước Mọi Thách Thức
Với kinh nghiệm và đội ngũ kỹ sư chuyên sâu, SEICO mang đến giải pháp kết cấu thép đáp ứng tiêu chuẩn quốc tế, tối ưu cả về kỹ thuật, chi phí và an toàn.
📞 Liên hệ ngay với chúng tôi để được tư vấn giải pháp phù hợp nhất cho công trình của bạn!
📌 Tham khảo thêm các giải pháp xây dựng bền vững tại seico.vn
Welds are an important "bridge" in steel structures, ensuring a solid connection between components. However, during the welding process, welds cannot avoid defects, affecting the durability and safety of the project. Therefore, checking steel structure welds is extremely important, helping to detect errors early and have timely treatment measures.
1. Why is it necessary to inspect structural steel welds?
Steel structure weld inspection plays an important role in:
- Ensuring construction quality: Detecting weld defects to ensure the quality and life of the construction.
- Preventing risks: Minimizing the risk of incidents and accidents due to faulty welds.
- Saving costs: Early detection of defects for timely repair measures, avoiding costly repairs later.
- Compliance with regulations: Meeting standards and regulations on weld quality inspection.
3. Common Methods of Inspection of Steel Structural Welds
There are many different methods of inspecting structural steel welds, each with its own advantages and disadvantages. Here are some common methods:
2.1. Visual Testing (VT)
Visual inspection of welds
- Advantages: Simple, fast, inexpensive.
- Disadvantages: Only detects surface defects.
- Applications: This method can measure weld height, shape and appearance of the external weld.
2.2. Magnetic Particle Testing (MT)
Magnetic welding inspection
- Magnetic Particle Testing (MT) is a method based on the interaction between magnetic fields and magnetic particles. When there is a defect on the surface of the material, the distribution of the magnetic field will change, and the magnetic particles will concentrate at that location, helping to detect the defect. This method is applied to magnetic materials that can detect even very small surface cracks, subsurface defects. Detectable defects include: surface cracks in welds and heat-affected zones, insufficient melting, subsurface cracks, etc.
- By this method, a minimum gap width of about 1mm can be detected when the minimum depth is 10mm and the minimum gap length is about 0.2–1mm.
- This method will test fillet welds such as column, truss, beam, stiffener code welds, and connection code welds.
2.3. Ultrasonic Testing (UT)
Ultrasonic testing (UT) is a non-destructive method used to evaluate the quality of welds. By using ultrasonic waves, defects within the material can be detected without disturbing its structure.
Ultrasonic weld inspection
This method will check the welds of the wing joints, the belly joints of the columns, beams and trusses with a thickness of 8mm or more.
- Advantages: Detecting defects inside the weld, such as cracks, air holes, lack of fusion...
- Disadvantages: Requires high technical skills, requires experienced people.
- Application: Checking the quality of welds in important structures.
2.4. Penetrant Testing (PT)
Penetrant Testing (PT)
This is a non-destructive weld inspection method used to detect exposed discontinuities on the surface of any industrial product made from non-porous materials. The penetrant weld inspection method is commonly used to inspect non-magnetic materials. In this method, a liquid penetrant is sprayed onto the surface of the product for a certain period of time, after which the excess penetrant is removed from the surface. The surface is then dried and coated with a developer. The penetrant that has penetrated into cracks or cavities is "absorbed" by the developer, creating marks (indicators) indicating the location and size of the defect.
3. Choosing the Right Testing Method
Choosing the appropriate method of testing structural steel welds depends on many factors, such as:
- Material type: Normal steel, alloy steel, magnetic material...
- Weld type: Fillet weld, butt weld, T-weld...
- Quality requirements: Welds for normal structures or important structures.
- Inspection cost: Each method has a different cost.
Steel structure weld inspection is an important and indispensable step in the construction and acceptance process of the project. Choosing the appropriate inspection method and following the correct procedure will help ensure the quality and safety of the project. During the production process, Seico always adheres to the standards with a team of skilled welders, certified according to regulations to bring the best quality steel structures to the projects. If you need more information about steel structures and pre-engineered steel buildings, please contact Seico for free consultation.
Welds are an important "bridge" in steel structures, ensuring a solid connection between components. However, during the welding process, welds cannot avoid defects, affecting the durability and safety of the project. Therefore, checking steel structure welds is extremely important, helping to detect errors early and have timely treatment measures.
1. Why is it necessary to inspect structural steel welds?
Steel structure weld inspection plays an important role in:
- Ensuring construction quality: Detecting weld defects to ensure the quality and life of the construction.
- Preventing risks: Minimizing the risk of incidents and accidents due to faulty welds.
- Saving costs: Early detection of defects for timely repair measures, avoiding costly repairs later.
- Compliance with regulations: Meeting standards and regulations on weld quality inspection.
3. Common Methods of Inspection of Steel Structural Welds
There are many different methods of inspecting structural steel welds, each with its own advantages and disadvantages. Here are some common methods:
2.1. Visual Testing (VT)
Visual inspection of welds
- Advantages: Simple, fast, inexpensive.
- Disadvantages: Only detects surface defects.
- Applications: This method can measure weld height, shape and appearance of the external weld.
2.2. Magnetic Particle Testing (MT)
Magnetic welding inspection
- Magnetic Particle Testing (MT) is a method based on the interaction between magnetic fields and magnetic particles. When there is a defect on the surface of the material, the distribution of the magnetic field will change, and the magnetic particles will concentrate at that location, helping to detect the defect. This method is applied to magnetic materials that can detect even very small surface cracks, subsurface defects. Detectable defects include: surface cracks in welds and heat-affected zones, insufficient melting, subsurface cracks, etc.
- By this method, a minimum gap width of about 1mm can be detected when the minimum depth is 10mm and the minimum gap length is about 0.2–1mm.
- This method will test fillet welds such as column, truss, beam, stiffener code welds, and connection code welds.
2.3. Ultrasonic Testing (UT)
Ultrasonic testing (UT) is a non-destructive method used to evaluate the quality of welds. By using ultrasonic waves, defects within the material can be detected without disturbing its structure.
Ultrasonic weld inspection
This method will check the welds of the wing joints, the belly joints of the columns, beams and trusses with a thickness of 8mm or more.
- Advantages: Detecting defects inside the weld, such as cracks, air holes, lack of fusion...
- Disadvantages: Requires high technical skills, requires experienced people.
- Application: Checking the quality of welds in important structures.
2.4. Penetrant Testing (PT)
Penetrant Testing (PT)
This is a non-destructive weld inspection method used to detect exposed discontinuities on the surface of any industrial product made from non-porous materials. The penetrant weld inspection method is commonly used to inspect non-magnetic materials. In this method, a liquid penetrant is sprayed onto the surface of the product for a certain period of time, after which the excess penetrant is removed from the surface. The surface is then dried and coated with a developer. The penetrant that has penetrated into cracks or cavities is "absorbed" by the developer, creating marks (indicators) indicating the location and size of the defect.
3. Choosing the Right Testing Method
Choosing the appropriate method of testing structural steel welds depends on many factors, such as:
- Material type: Normal steel, alloy steel, magnetic material...
- Weld type: Fillet weld, butt weld, T-weld...
- Quality requirements: Welds for normal structures or important structures.
- Inspection cost: Each method has a different cost.
Steel structure weld inspection is an important and indispensable step in the construction and acceptance process of the project. Choosing the appropriate inspection method and following the correct procedure will help ensure the quality and safety of the project. During the production process, Seico always adheres to the standards with a team of skilled welders, certified according to regulations to bring the best quality steel structures to the projects. If you need more information about steel structures and pre-engineered steel buildings, please contact Seico for free consultation.
Welds are an important "bridge" in steel structures, ensuring a solid connection between components. However, during the welding process, welds cannot avoid defects, affecting the durability and safety of the project. Therefore, checking steel structure welds is extremely important, helping to detect errors early and have timely treatment measures.
1. Why is it necessary to inspect structural steel welds?
Steel structure weld inspection plays an important role in:
- Ensuring construction quality: Detecting weld defects to ensure the quality and life of the construction.
- Preventing risks: Minimizing the risk of incidents and accidents due to faulty welds.
- Saving costs: Early detection of defects for timely repair measures, avoiding costly repairs later.
- Compliance with regulations: Meeting standards and regulations on weld quality inspection.
3. Common Methods of Inspection of Steel Structural Welds
There are many different methods of inspecting structural steel welds, each with its own advantages and disadvantages. Here are some common methods:
2.1. Visual Testing (VT)
Visual inspection of welds
- Advantages: Simple, fast, inexpensive.
- Disadvantages: Only detects surface defects.
- Applications: This method can measure weld height, shape and appearance of the external weld.
2.2. Magnetic Particle Testing (MT)
Magnetic welding inspection
- Magnetic Particle Testing (MT) is a method based on the interaction between magnetic fields and magnetic particles. When there is a defect on the surface of the material, the distribution of the magnetic field will change, and the magnetic particles will concentrate at that location, helping to detect the defect. This method is applied to magnetic materials that can detect even very small surface cracks, subsurface defects. Detectable defects include: surface cracks in welds and heat-affected zones, insufficient melting, subsurface cracks, etc.
- By this method, a minimum gap width of about 1mm can be detected when the minimum depth is 10mm and the minimum gap length is about 0.2–1mm.
- This method will test fillet welds such as column, truss, beam, stiffener code welds, and connection code welds.
2.3. Ultrasonic Testing (UT)
Ultrasonic testing (UT) is a non-destructive method used to evaluate the quality of welds. By using ultrasonic waves, defects within the material can be detected without disturbing its structure.
Ultrasonic weld inspection
This method will check the welds of the wing joints, the belly joints of the columns, beams and trusses with a thickness of 8mm or more.
- Advantages: Detecting defects inside the weld, such as cracks, air holes, lack of fusion...
- Disadvantages: Requires high technical skills, requires experienced people.
- Application: Checking the quality of welds in important structures.
2.4. Penetrant Testing (PT)
Penetrant Testing (PT)
This is a non-destructive weld inspection method used to detect exposed discontinuities on the surface of any industrial product made from non-porous materials. The penetrant weld inspection method is commonly used to inspect non-magnetic materials. In this method, a liquid penetrant is sprayed onto the surface of the product for a certain period of time, after which the excess penetrant is removed from the surface. The surface is then dried and coated with a developer. The penetrant that has penetrated into cracks or cavities is "absorbed" by the developer, creating marks (indicators) indicating the location and size of the defect.
3. Choosing the Right Testing Method
Choosing the appropriate method of testing structural steel welds depends on many factors, such as:
- Material type: Normal steel, alloy steel, magnetic material...
- Weld type: Fillet weld, butt weld, T-weld...
- Quality requirements: Welds for normal structures or important structures.
- Inspection cost: Each method has a different cost.
Steel structure weld inspection is an important and indispensable step in the construction and acceptance process of the project. Choosing the appropriate inspection method and following the correct procedure will help ensure the quality and safety of the project. During the production process, Seico always adheres to the standards with a team of skilled welders, certified according to regulations to bring the best quality steel structures to the projects. If you need more information about steel structures and pre-engineered steel buildings, please contact Seico for free consultation.