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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...

Structural Steel Bolting Balls: Connecting the Future, Securing the Cornerstone

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In the field of steel structure , bolted ball, as an innovative choice of connecting node, is gradually becoming the preferred solution in modern buildings and industrial facilities due to its advantages of easy installation, removable and reorganisable, and low maintenance cost. Compared with traditional welded balls, bolted balls not only simplify the construction process and improve efficiency, but also give the structure greater flexibility and sustainability, which is an indispensable and important component in modern steel structure projects. The core concept of the bolted ball connection technology is to use high-strength bolts to closely connect the components to form a stable and reliable node structure. Compared with welded ball, bolted ball connection does not require on-site welding and avoids thermal stress, deformation and weld quality problems that may arise during the welding process, thus improving the overall stability and safety of the structure. In addition, the bo...

Welded ball processing method

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  Welded ball Hot press moulding method Unloading: according to the design requirements, adopt semi-automatic gas cutting, profiling gas cutting, CNC flame gas cutting and other methods to unload the steel plate and cut out the round plate of suitable size, when unloading, it is necessary to reserve the welding shrinkage margin for fabrication and installation as well as the machining margins for cutting, edge planing, milling and so on. Heating: The blanks are heated uniformly to about 1050 ° C ± 50 ° C in a reflector furnace or resistance furnace after unloading. Pressing and moulding: Use hydraulic presses and matching convex and concave moulds to press and mould the heated slabs to produce hemispherical shapes. The demoulding temperature should not be lower than 650 ° C. After the hemisphere is pressed and moulded, the wall thickness should be reduced by not more than 13% and not more than 2.5mm according to the design and specification. Cutting bevel margin: can be processe...

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...

Influence of different elements on steel properties

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  steel (1) Carbon: the higher the carbon content, the higher the hardness of the steel , but its plasticity and toughness is worse. (2) Manganese: can improve the strength of steel, can weaken and eliminate the adverse effects of sulfur, and can improve the hardenability of steel, high manganese content of high alloy steel (high manganese steel) has good wear resistance and other physical properties. (3) sulfur: a harmful impurity in steel, steel containing high sulfur at high temperatures for pressure processing, easily brittle, usually called thermal embrittlement. (4) phosphorus: can make the plasticity and toughness of steel decreased significantly, especially at low temperatures is more serious, this phenomenon is called cold embrittlement. In high-quality steel, sulfur and phosphorus should be strictly controlled. But on the other hand, in the low carbon steel containing high sulfur and phosphorus, can make its cutting easy to break, to improve the cutability of steel is fav...

Can the roof of a mosque be made of aluminium?

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mosque Roofs for mosques can be made from aluminium, depending on many factors including local building regulations, budget, design requirements and climatic conditions. Aluminium is a lightweight, corrosion-resistant material that is often used for roofs, curtain walls and other parts of buildings. However, the following points need to be kept in mind when using aluminium as a mosque roofing material: Local building codes and standards: It is necessary to ensure that local building codes and standards allow the use of aluminium as a roofing material and comply with the relevant regulations. Design and structure: The design of the roof of a mosque needs to take into account the overall structure of the building, including the supporting structure, wind loads, rainwater drainage, etc. Climatic conditions: Aluminium's resistance to corrosion allows it to perform well in a wide range of climatic conditions. However, in particularly harsh environmental conditions (e.g. coastal areas wi...

Inspection methods for welds

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  welding There are several ways to inspect the weld as follows:   1. Visual inspection: inspection by observing the shape, colour, defects, etc. of the weld with the naked eye.   2. radiological inspection: the use of X-rays or γ-rays on the weld can detect defects within the weld, such as porosity, inclusions and so on.   3. ultrasonic inspection: the use of ultrasonic propagation characteristics, through the ultrasonic scanning of the weld to detect internal defects in the weld, such as inclusions, pores, cracks, etc..   4. Magnetic particle inspection: Coat the surface of the weld with magnetic powder and apply a magnetic field to detect cracks, inclusions and other defects on and near the surface of the weld.   5. Penetration inspection: Coat the surface of the weld with penetrant, and through the penetration and colour development of the penetrant, detect cracks, inclusions and other defects on the surface of the weld.   6. Magnetic Field Inspect...

There are many advantages to using steel to build a long-span roof

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  space frame Strong seismic performance: Steel has excellent seismic performance, providing greater safety in the event of an earthquake. Lightweight and Strong: Steel has higher strength and stiffness than traditional materials such as concrete and masonry, while being relatively lightweight, reducing the overall structural weight and foundation requirements. High flexibility: steel is easy to cut, bend and connect, and can realize various complex structural forms and adapt to different design requirements. Short construction cycle: The production process of steel structure is highly industrialized and can be prefabricated in the factory, reducing the on-site construction time and improving the project progress. Green and environmental protection: steel can be recycled and reused, which reduces the consumption of natural resources and conforms to the concept of sustainable development. Beautiful and generous: steel structure can create a modern design effect with unique aestheti...

Construction Steps for Steel Structure Engineering

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  space frame engineering Step 1: Site Preparation Before commencing any construction activities, the site must be prepared. This involves clearing the area, ensuring proper drainage, and establishing temporary access roads if needed. Additionally, the site should be properly leveled and compacted to provide a stable foundation for the steel structure. Step 2: Foundation Construction The foundation is a critical component of any steel structure. Depending on the project requirements and soil conditions, different types of foundations such as pad footings, pile foundations, or raft foundations may be constructed. These foundations provide the necessary support and stability for the steel structure. Step 3: Erection of Columns and Beams Once the foundation is in place, the steel columns and beams are erected. This process involves lifting and placing the structural members into their designated positions. Cranes or other lifting equipment are commonly used for this purpose. Precise a...

Steel space frame construction in industrial plants

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 Steel space frame construction in industrial plants industrial plant Most of the applications of space frame structures in industrial plants are small to medium span, large area grid roofs supported by column networks. An early representative project is the seamless steel pipe processing workshop in Tianjin, completed in 1992, which, according to the literature, was the first time that a mesh frame structure was used for a single-storey industrial plant in a metallurgical factory with heavy-duty working cranes, with an area of about 62,000m², saving about 43% of the steel consumption compared to the traditional planar steel truss structure solution. The Tesla Super Factory in Shanghai, which is due to be completed in 2021, features a squared-off quadrangular conical grid structure with an area of 157,000m².

What are the national standards for steel materials?

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  There are different national standards for steel materials around the world, and the specific standards depend on the country and the intended use of the steel. Some examples of national standards for steel materials are: ASTM (American Society for Testing and Materials) standards: These are widely used in the United States and cover a wide range of steel products, including structural steel, carbon steel, alloy steel, stainless steel, and tool steel. EN (European Norm) standards: These are developed by the European Committee for Standardization (CEN) and cover various types of steel products, including structural steel, stainless steel, and high-strength steel. JIS (Japanese Industrial Standards) standards: These are developed by the Japanese Industrial Standards Committee and cover various types of steel products, including carbon steel, alloy steel, stainless steel, and tool steel. GB (Chinese National Standards) standards: These are developed by the Standardization Administra...