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What is a shear key in steel structures?

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 In steel structure engineering , the column base connection serves as the pivotal interface linking the superstructure to the concrete foundation below. It must safely and reliably transmit various loads from the upper structure: vertical pressure , uplift forces , bending moments , and horizontal shear forces . When horizontal shear forces become substantial, the friction alone between the column base plate and the concrete foundation surface proves insufficient to resist them. At this juncture, a critical small component becomes indispensable—the shear key . Shear keys, as the name suggests, are structural steel connection components specifically designed to resist and transmit horizontal shear forces. Essentially, they are short steel members. Installation location: Typically welded or anchored to the base plate of a steel column (or other load-bearing components such as equipment supports ), with its lower end embedded in the concrete foundation or concrete structure cast ...
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管桁架结构设计

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  Tube truss is a lattice structure composed of round rods connected with each other at the end. Compared with the traditional steel joist with open section (H-beam and I-beam), the material of the cross-section of tube joist structure is more uniformly distributed around the center and axis, so that the cross-section has good compressive and bending and torsion bearing capacity as well as large stiffness at the same time. This kind of steel structure doesn't need node plate, simple structure, easy to make and install, good structural stability and large roof rigidity. Space triangular steel tube truss shows the force mechanism of shear resistance of web bar and bending resistance of chord bar when it is subjected to vertical uniform load. The main influencing factor of axial force of chord bar is the height of section, while the main influencing factor of axial force of vertical diagonal web bar is the inclination angle between vertical web bar and vertical straight line. Horizon...
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Classification of steel structure nodes

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 It is widely used in modernist architecture. Steel structure installation is mainly carried out by electric welding welding and bolts. Because the steel frame structure is compact and practical, it brings great convenience to engineering construction. In order to promote the sustainable development concept of steel frame structure in the construction engineering industry, it is necessary to carry out an in-depth analysis of the construction stage of steel structure, especially the node design, to ensure reliability.       Steel plate materials are widely used in modernist buildings because of their extreme seismic performance, plasticity and reliability. Jiangsu steel structure project construction is to be processed with bolts or steel to make the building structure. Accompanied by the improvement of living standards and the rapid development of the construction industry, the requirements for steel frame structure are rigorous. As a result, the design of steel fra...
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The economic benefits of steel structures

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 "A new building system can open up industry lines between construction, metallurgy, machinery and equipment manufacturing, new building materials and disaster prevention and mitigation industries, become a national strategic resource reserve, and integrate and innovate to become a strategic emerging industry. Steel structure housing is conducive to economic transformation and upgrading and sustainable development, and needs to be accelerated to cultivate and develop." This is the steel structure building system that was generally favored by the industry a few years ago. The steel structure housing general system is used for civil housing and has unique advantages, including:First, light self-weight. Steel structure residential can reduce the building weight by about 30%25%, which is favorable for the construction of high-rise buildings, especially in places with low geological bearing capacity and high seismic intensity, and its comprehensive economic benefits are better th...
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Advantages of Prefabricated Steel Structure Commercial Buildings

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 Assembled steel structure commercial buildings are ideal for agricultural projects, warehouses and industrial buildings. This is because they are quick and inexpensive to construct. There are many advantages to this type of steel building. So, keep reading to find out why steel buildings may be the choice for your next construction project. Faster construction time Prefabricated commercial buildings (PEBs) can be completed much faster than other construction methods. This is due to their use of high-strength steel and stacked tapered sections. Steel building general contractors also utilize computerized processes to ensure standardized and accurate designs. The structure of these buildings is clearly laid out in diagrams so that all the different components are easy to assemble. All components and materials are pre-cut so that they are ready to be constructed on site. As a result, PEBs can be assembled much faster than other more traditional structural models. Prefabricated stee...
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The Difference Between Space Frame and Pipe Trusses

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  S teel structure  is an indoor space structure made of multiple rods connected with each other according to a certain grid pattern based on nodes. It has the advantages of indoor space support, light weight, large bending rigidity, good performance of seismic grade; it can be used as the roof frame of stadiums, cinemas, exhibition halls, waiting halls, stadium infield canopies, airplane hangars, double-column mesh frame structure from the production workshop and other engineering buildings. The disadvantage is that the total number of rods converging on the nodes is more, and the fabrication installation is more complicated than the plan structure. 　　 Truss structure is a floor plan or indoor space structure which is generally equipped with triangular modules composed of straight rods. Under the load effect, the truss structure rods can bear the radial tensile force or working pressure, and then the compressive strength of raw materials can be utilized flexibly, saving raw m...
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Space frame framing transforms traditional architectural styles

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    Steel in the use of good performance Advantages, is a new type of modern building materials, in the application of products to achieve a change in style, change the traditional concrete building, lifting space frame building, is a representative of the green building, with a longer period of time and greater efficiency in the use of products, to achieve China's efficiency in the use of the building itself, and gained the application of units of the space frame building recognition. At present, the excellent space frame building, gradually into everyone's line of sight, to meet the effect of the building, and at the same time in the case of different land environment, to complete the design and construction of the building, to give people living and office to provide environmentally friendly space, and it can be bar three-dimensional spatial structure and architectural aesthetics of the combination, can reflect a different architectural style, to meet the current needs of ...
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Three construction methods of steel structure space frame

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  1 、 Aerial assembling method 　　 Steel space frame  with high altitude assembly method for installation, is first set up in the design position at the assembly bracket, and then use the crane to the space frame  components pieces (or sub-blocks) up to the air design position, in the bracket for assembly. This method sometimes do not need large lifting equipment, but assembling bracket dosage, more work at height. Therefore, the high-strength bolts, steel space frame  made of steel sections or bolted ball nodes of the steel pipe space frame  is more appropriate, there are still some steel space frame  with this method of construction. 　　 2 、 Overall installation method 　　 The whole installation method is the first space frame  on the ground assembled into a whole, and then lifting equipment will be lifted to the overall design position to be fixed. This construction method does not require a tall assembly bracket, less overhead work, easy to ensure the...
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