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目前显示的是标签为“steel structure”的博文

How to Ventilate and Cool Steel Structure Workshops?

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Steel structure workshops, with their fast construction speed, low cost, and good sturdiness, are widely used in manufacturing and warehousing areas. However, in the hot summer, these workshops become sweat-evaporating chambers. Even without a hot production area, the temperature inside a steel structure workshop can be 5 degrees Celsius higher than the outside temperature, and the heat source temperature in the production area often reaches over 40 degrees Celsius. Environmental problems associated with steel structure workshops and sheet metal buildings include: 1. Large area and space make it difficult to find suitable ventilation and cooling equipment. 2. Poor insulation of sheet metal roofs leads to stuffy and hot workshops in summer. The heat generated by machinery in some steel structure workshops and sheet metal buildings accumulates if it cannot be expelled in time, increasing the workshop temperature, making it stuffy, and affecting the workshop environment. To solve the env...

How many different approaches are there to designing the roof pitch for space structures?

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 The roof of a space structure plays an extremely important role in a building—providing shelter from wind and rain and ensuring efficient drainage. Whether in large-span sports halls, exhibition centres, industrial plants or logistics warehouses, a well-designed roof drainage slope is key to ensuring the structure functions properly. If the slope is not properly managed, the consequences can range from minor issues such as water pooling and leaks—which affect the building’s aesthetics and service life—to more serious problems, such as structural safety risks caused by excessive water accumulation and dead loads during heavy snowfall or torrential rain. Therefore, the appropriate management of roof slopes is an aspect of space frame design that cannot be overlooked. So, what are the methods for handling roof slopes in space frame structures? There are generally three methods for handling roof slopes in space frame structures: 1. Installing small columns at the top chord nodes to cr...

Factors Influencing the Quality of Bolt-Ball Space Frame Structures

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 Spatial structures have become a widely adopted structural form in recent years. Composed of bolt-ball nodes and seamless steel tubular members, these highly indeterminate structures are assembled using high-strength bolts or welding connections. They are characterized by a low steel-to-span ratio, excellent seismic resistance, short construction cycles, and aesthetic appeal. These structures are extensively utilized in large-span engineering projects, such as sports stadiums, airport terminals, high-speed railway stations, industrial plants, and large-scale storage warehouses. However, during the actual production, fabrication, and installation processes, two key factors can still significantly impact the overall quality of bolt-ball space frame structures. (1) Insufficient Strength of High-Strength Bolts In bolt-ball space frame structures, the strength of the high-strength bolts (which are capable of bearing significantly higher loads compared to standard bolts of the same si...

Coal Storage Methods and Their Advantages and Disadvantages

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  Coal resource storage is a core component of coal mine production, providing buffer support for production systems while enabling precise utilization of coal quality through categorized storage. With advancements in coal storage technology, its role in environmental protection and efficiency enhancement has become increasingly prominent, serving as a vital pillar for enterprise transformation. 1. Evolution of Mainstream Coal Storage Methods After multiple rounds of technological innovation, current mainstream storage methods have diversified into four primary categories: ( 1 ) Open-Air Storage Yards:  This involves storing coal resources outdoors, once the dominant choice for early coal enterprises but now largely phased out. ( 2 ) Semi-Open Storage Yards:  Also known as dry coal sheds, these are widely adopted by coal enterprises in southern China. Given the abundant rainfall in southern coal mining regions, this storage method—which combines protection with ventilati...

Sustainable Construction and Eco-Friendly Materials

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As global climate change and resource scarcity become increasingly pressing issues, the application of sustainable construction and eco-friendly materials has emerged as a critical focus in the building industry. Steel space  structures , as an environmentally friendly and highly efficient building material, are contributing significantly to the advancement of green architecture. 1. Recyclability of Steel Space Structures The primary material in steel space structures is steel, which is a recyclable resource. Compared to traditional building materials like concrete, steel space  structures  can be easily recycled and reused after building demolition. This reduces construction waste generation and lowers consumption of natural resources. This recyclable nature gives steel space  structures  a significant role in green construction. 2. Energy Conservation and Efficiency The efficient design of steel space  structures  optimizes a building's energy usage....

Rust Removal Methods for Steel space structures

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  The cross-sections of steel space frame components should be determined based on compressive strength and reliability calculations. To reduce the calculated length of compression members and improve reliability, measures such as adding sub-compression members and support frames can be adopted.   The connection points of plate-shaped spherical space structures   and two-shell spherical space structures   made of stainless steel mainly include cross-plate connection points, welded hollow sphere connection points, and anchor bolt sphere connection points. Cross-plate connection points are suitable for steel space structures   with channel steel components; the connection between the component and the connection plate is achieved by welding or high-strength bolts. Hollow sphere connection points and anchor bolt sphere connection points are suitable for steel space structures   with seamless steel pipe components. The connection points of single-shell spheric...

When designing a grid, how do we determine the height of the grid?

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  1. Main influencing factors (1) Roof load: When the roof load is large, the grid needs to be higher to provide sufficient rigidity and stability. On the contrary, if the roof load is small, the grid height can be relatively low. (2) Span : The span of the grid is another important factor in determining its height. The larger the span, the larger the grid height usually needs to be in order to meet the requirements of rigidity and stability. (3) Plane shape and support conditions: The plane shape (such as circular, square, rectangular, etc.) and support conditions (such as peripheral support, point support, etc.) of the grid will also affect the determination of its height. For example, the height of the grid with a circular or square plane can be smaller, while the height of the grid with a narrow plane needs to be larger due to the obvious unidirectional force transmission. The height of the grid with peripheral support is usually smaller than that of the grid with point suppo...

Precautions for Spherical Grid Construction

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Spherical grid structures are often used in various locations, such as waiting rooms, stadiums, and coal sheds.   Spherical grid structures typically come in various shapes, including triangles, rhombuses, and hexagons. Therefore, ensuring ease of installation is crucial during construction. The grid frames must be connected and welded together using rods to secure them. Precautions for Spherical Grid Construction: 1. Pay attention to the grid structure itself. Generally speaking, grids come in various shapes, such as triangles, rhombuses, and hexagons. The specific shape to use, as well as the need for more specialized structures, are matters that the fabricator needs to discuss with the client. 2. It is important to note that the fabricator must be mindful of time constraints during grid construction. Generally speaking, delays in grid erection will result in not only a loss of overtime pay, but also a loss of time expense to the employer. Therefore, time is a crucial considerat...

Common connection methods for space structures

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  1. Weld connection The weld connection in space structures mainly adopts arc welding, that is, at the connection of components, the high temperature generated by the arc will melt the welding rod or wire metal placed at the weld position, so that the components are connected together. Arc welding is divided into manual welding, automatic welding and semi-automatic welding. Automatic welding and semi-automatic welding can adopt submerged arc welding or gas shielded welding. 2. Ordinary bolt connection The connecting parts of ordinary bolt connection include bolt rod, nut and washer. Ordinary bolts are made of ordinary carbon structural steel or low alloy structural steel; they are divided into rough bolts and refined bolts. Rough bolts are made of unprocessed round rods, and the bolt hole diameter is 1.0 to 1.5 mm larger than the bolt rod diameter. They are simple to make and easy to install, but the performance is poor when sheared. They are only used for the connection of second...

Typical Defects and Damage in Long-Span Bolted Spherical Node Steel Space Structures

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 1. Bolted Spherical Node Defects Threaded Hole Machining Accuracy Issues The threaded holes in bolted spherical nodes are critical components where machining precision is paramount. In actual production, issues such as positional deviations and uneven pitch frequently occur. For instance, excessive positional deviation can result in loose connections between bolts and spheres, preventing effective load transfer and degrading structural performance. Uneven pitch impedes bolt insertion and tightening, leading to insufficient preload. In large-span space frames, this may cause node loosening and compromise overall structural stability. Bolt Sphere-Member Connection Issues Bolt spheres typically connect to members via bolted joints. In practice, bolt length, diameter, and tightening torque all affect connection quality. Insufficient bolt length compromises the connection's integrity, increasing the risk of disengagement under external forces. Excessive or insufficient tightening torq...

Innovative application and advantages of grid structure in environmentally friendly coal shed construction

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In traditional coal sheds , environmental pollution problems such as coal dust and exhaust gas emissions are common, which seriously threaten the surrounding environment and people's health. In response to these problems, grid structure has emerged as an innovative solution, providing a new idea for the construction of environmentally friendly coal sheds. First, the grid structure has excellent ventilation performance. Its unique internal grid design allows air to flow smoothly, significantly reducing the accumulation of coal dust. Compared with traditional closed coal sheds, grid coal sheds perform better in ventilation, thereby effectively reducing pollution to the surrounding environment. Second, the grid structure also shows high efficiency in flue gas treatment. By equipping the coal shed with flue gas treatment equipment, such as dust collectors and desulfurization equipment, harmful substances in the exhaust gas can be efficiently captured and purified. This design not only ...

Steel Structures in Airport Terminals — Creating Safe, Spacious, and Modern Air Hubs

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 Airport terminals are among the most complex buildings in the world. They require large, open spaces, heavy passenger traffic capacity, high safety standards, and the flexibility to adapt to future aviation demands. To meet these engineering and architectural challenges, steel structures have become the preferred solution in airport construction worldwide. From long-span roofs to modern architectural forms, steel provides the ideal combination of strength, aesthetics, and efficiency , helping airports operate smoothly while maintaining an impressive visual identity. 1. Why Airport Terminals Need Steel Structures Airports serve millions of travelers every year and must maintain strict performance requirements. Terminal buildings need: Wide column-free spaces to accommodate crowds, luggage systems, and commercial areas Large-span roofs that cover long check-in halls and departure lounges Durability to withstand constant use and environmental exposure Flexibility f...

Steel Structures in Logistic Warehouses — Maximizing Storage and Efficiency

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 In today’s globalized supply chain, logistics warehouses are more than just storage facilities — they are the backbone of modern commerce . From e-commerce fulfillment centers to cold-chain storage, the demand for large, flexible, and efficient warehouse spaces has never been greater. To meet these requirements, steel structures have become the industry standard, offering unmatched advantages in speed, durability, and cost-efficiency. 1. The Growing Importance of Logistics Warehouses The rapid expansion of online retail and global trade has transformed warehouse design. Modern facilities must handle: High storage capacity for diverse goods and materials. Efficient internal movement , including conveyors, forklifts, and automated systems. Large clear spans , eliminating interior columns to maximize usable space. Sustainability goals , reducing energy use and environmental impact. Steel structures are ideally suited to deliver on all these needs, combining engine...

Steel Structures in Industrial Power Plants — Supporting Energy and Heavy Machinery

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  Industrial power plants are some of the most demanding facilities in modern construction. They house massive machinery, high-temperature systems, and heavy structural loads — all operating in extreme environments that require maximum reliability and durability. In such projects, steel structures play a vital role, offering unmatched strength, adaptability, and longevity. 1. The Demands of Power Plant Construction Power generation facilities — whether thermal, hydro, or renewable — require large-scale buildings that can safely accommodate turbines, boilers, and transmission systems. The challenges include: Heavy load-bearing requirements , often exceeding standard industrial structures. High temperature and vibration , demanding robust and fatigue-resistant materials. Large internal spaces , allowing for maintenance and machinery operation. Strict safety and compliance standards , especially for fire resistance and corrosion control. Steel structures have proven...