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What are the key points to consider when establishing a mineral warehouse on the coast of Nigeria?

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👉 Project location: Nigerian coast 👉 Project type: Mine warehouse (span 100 metres, length 125 metres) 1. Structural Design  Span and Length:  The mine warehouse has a span of 100 metres and a length of 125 metres, employing a large-span steel structure design to ensure structural stability and load-bearing capacity.  It is recommended to use a steel truss structure or space frame structure to meet the large-span requirements and optimise material usage.  The structural design must consider wind loads, seismic loads, and dynamic loads during the operation of the bucket wheel excavator. Foundation Design:  Since the project is located by the sea, the foundation may be relatively soft. It is recommended to use deep foundation design (such as pile foundations) to ensure structural stability.  Foundation construction must consider the impact of groundwater levels and saline-alkali environments, and foundation reinforcement should be carried out when necessa...

What are the differences between bolted ball grids and welded ball grids?

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 There are a number of differences between bolted ball grids and welded ball grids in terms of fabrication, construction and design. The following are specific comparisons: 1. Manufacturing process: The manufacturing of bolted ball net frame is mainly carried out in the factory, using mechanical shot blasting to remove rust, and then spraying paint, plastic spraying or zinc spraying treatment to enhance corrosion resistance.  The steel pipe and welded seam of welded ball mesh frame can only be descaled manually on site, and then paint or fireproof coating is brushed. For the welded part, it needs to be descaled and brushed at a stage to maintain, which increases the cost of later use and affects the safety of the structure. 2. Construction process: 70% of the workload of bolted ball grid frame is prefabricated in the factory, 30% of the workload is installed at the site, only a wrench is needed to tighten the bolts at the site, which is easy and fast, and can be constructed ...

Chessboard-shaped quadrangular pyramid grid

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  Structural features: The spatial stiffness is smaller than that of the square pyramid grid , and the internal force of the lower chord increases. When the perimeter is arranged into a full cone, the stiffness is better. This grid has a short upper chord under compression and a long lower chord under tension, which can give full play to the role of the cross section of the rod and bear reasonable force.   Applicable conditions: Applicable to peripheral support grids with a rectangular plane shape, a side length ratio greater than 1.5, and small and medium spans.

What are the difficulties in designing steel structures?

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  Despite the many advantages of steel structure design in modern buildings, there are some design difficulties. The following are the main difficulties in steel structure design: steel structure 1. Complex mechanical analysis · Multi-directional force: Steel structures are usually subject to multiple loads, including vertical loads, wind loads, seismic loads and so on. The combination and transfer path of these loads are complex and require accurate mechanical analysis. · Large-span structures: Large-span steel structures such as stadiums and exhibition centers require precise force analysis to ensure the stability and safety of the structure. 2. Node design · Node Complexity: The design of nodes (connection points) in steel structures is very complex, especially for space frames and shaped structures. Nodes need to transmit and distribute multidirectional loads, and have high design and construction requirements. · Welded and bolted connections: nodes are connected in various wa...

What are the advantages of multi-story steel structure plant?

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In the process of development, whether in the early stage of business or expanding the scale of operation, enterprises need an efficient, safe and flexible workplace, which is when the multi-storey steel structure plant has great advantages. warehouse I. High space utilization rate Multi-storey steel structure workshop can greatly improve the space utilization efficiency of enterprises. As it can be utilized through the height, it makes the enterprise under the same land area, whether it is production, storage or workplace can be greatly improved. Not only that, the self-weight of steel structure plant is lighter, compared with concrete structure plant, it greatly reduces the foundation investment, thus saving the cost of enterprises. II. Stronger flexibility Multi-storey steel structure workshop is more flexible, the internal partitions of steel structure workshop can be changed according to the needs, and adjusted in real time according to the needs of the development of the enterp...

Characteristics of steel structure space frame

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  The steel space frame  has the following characteristics:   space frame 1. Uniform load transfer of space structure: space frame structure can distribute the load evenly to all the members, so that the whole grid is uniformly stressed. 2. Quick and convenient construction: the space frame structure can be produced by prefabrication or modularization, which greatly shortens the construction period and can be repeatedly disassembled and reused. 3. High degree and anti-seismic performance: due to the characteristics of steel structure itself, the space frame structure has high load-bearing capacity and anti-seismic performance, and can adapt to all kinds of harsh environment and climate conditions. 4. Large span and flexibility: the  space frame structure  can be adapted to a variety of large-span buildings, and can be adjusted to meet different needs by adjusting the form and size of the structure. 5. Recyclable materials: the steel used in steel structure spa...

Structural Characteristics of Steel Tube Joist

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  As a structural engineer, I would look at the following aspects of analysing a steel tube joist : I. Structural characteristics: 1. Simple structure: Pipe truss structure is connected by several sets of pipe rods and nodes, which does not need a large number of parts, so the structure is very simple. This design not only makes installation and dismantling faster and more convenient, but also reduces the manufacturing cost. 2. Light weight: Pipe trusses are made of lightweight materials and the overall weight is light. This helps to reduce the load of the building itself and improve the load-bearing capacity of the building. 3. High Strength: The tube truss structure is made of high strength materials such as steel pipe, so the whole structure has high load bearing capacity and wind resistance. It can withstand larger loads and external impacts to ensure the stability and safety of the building. 4. Good anti-seismic performance: Due to the stability and flexibility of tube truss ...

What to pay attention to in the design of a steel truss?

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  (1) Cross-section design of rods: The cross-section form of truss rods should be selected according to the conditions of saving steel, convenient connection and simple manufacture, and attention should be paid to make the length and slenderness ratio of rods in two main axes direction (the ratio between calculated length of rods and radius of rotation of the cross-section) as similar as possible, and should meet the requirements of strength, stability and length and slenderness ratio. (2) Strength and stability check: in the calculation of the strength and stability of the bar, the internal force is considered according to the axial force, when the bar is subject to axial force and bending moment at the same time, it should be considered according to the eccentricity of the force and its common role. When calculating the stability and slenderness ratio of the bars, the in-plane and out-of-plane directions of the truss or the unfavorable direction of the larger slenderness ratio ...