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The diversification of buildings requires solid and reliable technology in the connection of steel structures. Steel structure welding and strength bolt construction are the main methods of steel structure connection, with high efficiency and high performance. Good, safe and reliable, it has been widely used in construction with good results.
Due to the large single area and large span of the roof, and the steel space frame roof structure , there are many cranes running in the factory building , and the vibration is relatively large , so that the roof is in the process of elastic changes , and the design and construction of the roof waterproofing project are difficult.
In recent years, as a relatively new form of coal storage, the circular stockyard has been promoted and applied in the domestic coal storage and blending industry. It has outstanding environmental protection effects, beautiful appearance, high site utilization rate, and high degree of automation, especially in coastal climates. Reliable use in harsh areas.
The components of the steel structure are composed of section steel, steel plates, etc. through connection, and each component is then installed with a connecting frame to form the entire structure. When designing the connection, the principles of safety and reliability, clear force transmission, simple structure, convenient manufacture and saving steel must be followed.
With the improvement of national environmental protection requirements in recent years, factories and mines are required to be closed for production. The steel structure space frame with large span and large space is light in weight, good in integrity, large in space rigidity, good in seismic performance, and can save steel, Advantages such as fast construction speed are applied to newly built industrial plants.
Light steel structure has become an indispensable technical means in the construction of industrial buildings, and has become an inevitable demand for the further development and application of subsequent construction technology.
Steel space frame structure is a relatively new form of building facility structure. In the production of Steel space frame structure, we must pay attention to the quality. Unqualified quality will be an important problem for subsequent construction, and will even cause many safety risks.
Welded hollow ball joints and bolted ball joints are the two most commonly used space frame joint forms in my country at present. These two joint forms are favored by the majority of engineers and technicians due to their respective advantages, especially the bolt ball joint. Due to the use of computer-aided design to draw the processing diagram, the angle of the bolt screw hole and the blanking length of the bar can be determined with high precision.
space frame processing has followed China's reform and opening up so far, and the improvement of technology has won a great development trend. The form of steel structure space frame engineering is more peculiar, and the design and professionalism are more skilled. So what are the advantages of space frame engineering projects ? , so that the indoor space structure is formed by connecting multiple components according to the nodes according to a certain space frame diagram method.
In the space frame structure, the nodes play the role of connecting the intersecting bars and transferring the roof load and crane load. The space frame structure belongs to the space rod system, and there are at least 6 rods intersecting on a node, and as many as 13 rods. This adds a certain difficulty to the node design. The number of nodes of the space frame is large, and the amount of steel used in the nodes accounts for 1/5~1/4 of the steel used in the whole space frame, and the reasonable design node to the safety of the space frame, production and installation, project progress, steel indicators and project cost has a direct relationship.
The space frame structure is a load-bearing roof structure with light weight, high spatial rigidity and good seismic performance, and belongs to the multi-time hyperstatically indeterminate spatial structure system.The installation and construction methods are generally divided into the overall installation method and the high-altitude bulk method.
The space frame structure is a high-order hyperstatically indeterminate structure, its node structure is simple, its component production is factory-processed with high precision, and its construction period is short. widely used in construction.
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2023-06-12
