Steel structure projects, fundamentally, involves the use of metal steel as the primary material in constructing various structural parts such as beams, columns, and trusses from sections like I-beams and steel plates. The connection methods vary due to the different materials used, including welding, bolting, and riveting. A qualified steel structure building must adhere to safety in both construction and design, following steel structure design drawing and ISO9001 standards, and must be constructed according to industrial regulations. Selecting a safe installation team is very important, which involves having a standardized team with specific construction requirements and company standards. An excellent installation team is the core of a steel structure company.
Steel framed structures are widely used due to their numerous advantages over concrete. However, instability in prefabricated steel buildings, which occurs when the load-bearing capacity reaches its limit, can lead to accidents. Understanding the causes of instability is essential to prevent such incidents.
There are three main types of steel framed structures instability:
Bifurcation Buckling: This involves the complete axis and mid-surface under external forces, also known as branch point buckling, and includes cylindrical shells under pressure.
Ultimate Load Buckling: This occurs when eccentrically compressed members can no longer maintain stability after reaching a certain degree of plastic deformation, including bi-directional bending members.
Snap-through Buckling: This type does not have a bifurcation point or an ultimate load point but can still lead to significant deformations that must be avoided to prevent structural damage.
Factors contributing to steel structure workshop accidents include:
Design Errors: Poor design due to a lack of experience or understanding of stability concepts can lead to accidents.
Manufacturing Issues: Initial curvature, eccentricity, and residual deformations from welding affect stability.
Insufficient Temporary Support: During installation, the steel frame structure must be supported to maintain stability.
To prevent accidents, measures include:
Improving Designers' Qualifications: Enhancing the professional quality of designers to ensure a comprehensive understanding of stability factors and accurate calculations.
Reducing Defects in Steel Frame Structures: Controlling defects such as initial curvature and eccentricity through proper manufacturing processes.
Safety in Construction: Implementing safe lifting plans and temporary support setups to ensure stability during installation.
Proper Use of Steel Structures: Regular inspection and maintenance to prevent the use of damaged light weight steel framed structures and consulting with professionals before altering the load-bearing capacity of components.
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