Lishui Town Attic Construction Master Foshan Duoxin Steel Structure Attic Construction Master Supply Contact: Ms. Peng Foshan Duoxin Steel Structure Engineering Co., Ltd. Main Business: Professional and Simple Iron Shed Construction

Today, we will introduce the five major requirements for the support layout of steel structure factory buildings: 1. For structures with extracted columns, it is advisable to add horizontal supports to adjacent floors and roofs and set up vertical supports between adjacent columns. 2. The support rods between columns should be made of whole materials, and when exceeding the material length specification, strong splicing such as butt welds can be used; The connection between column supports and components should not be less than 1.2 times the plastic bearing capacity of the supporting members. 3. Column supports should be arranged between columns with high loads, and should be connected vertically between the same columns. If they are not connected, they should be staggered and continuously arranged. It is also advisable to increase horizontal supports on adjacent floors and roofs to ensure support and to transfer the horizontal seismic effects to the foundation. 4. The steel structure factory floor should use a combination of pressed steel plates and cast-in-place reinforced concrete, or steel planks can also be used. Foshan Duoxin Steel Structure Engineering Co., Ltd. is located in Shuizhen, Nanhai District, Foshan City. It is a Foshan steel structure company that integrates factory insulation, steel structure factory design, production, steel structure installation, maintenance and other supporting services. The company can undertake various types of lightweight steel structure engineering, heavy-duty steel structure truss engineering for multi story, high-rise, and super high-rise steel structure buildings, industrial and civil construction engineering, indoor and outdoor decoration engineering, simple activity dormitories, automobile 4S stores, highway toll stations, sports halls, and other steel structure component engineering. The company closely follows the new architectural concept, adopts advanced steel structure design software, and has a group of experienced and high-quality professional management talents, engineering and technical talents, and production talents. There is also a steel structure production and installation team that is quality-oriented, practical, has rich industry talents and work experience, and strong strength, dedicated to serving you wholeheartedly. We work hand in hand with you at affordable prices, sincere service, and perfect cooperation..

Steel Pipe Lishui Town Attic Construction Master Foshan Duoxin Steel Structure Attic Construction Master Supply Contact: Ms. Peng Foshan Duoxin Steel Structure Engineering Co., Ltd. Main Business: Professional and Simple Iron Shed Construction, Steel Structure Factory Construction, Attic Engineering, Installation Engineering, etc. Production and sales of C-shaped steel and color steel tiles. Wholesale and retail: various types of steel such as channel steel, angle iron (angle steel), I-beam, H-beam, welded pipe, galvanized pipe, round pipe, square pipe, boiler steel plate, etc. Our company has many years of experience in steel structure construction and has mastered various professional knowledge, with rich experience. The company's projects cover Guangdong, Foshan, Guangzhou, Zhongshan, Qingyuan, Yunfu, Zhaoqing, Dongguan, Zhuhai, Jiangmen, Huizhou, Shenzhen and other places. Welcome customers to call us for negotiation or visit our company in person. All employees of our company will continue to adhere to the business principle of "honesty and integrity". Specializing in the production and sales of steel structural materials. The price is the most affordable in Foshan and even in the country. Our company has a large wholesale of building materials such as angle steel, channel steel, H-beam, I-beam, square tube, round tube, flat iron, C-shaped steel, colored tiles, etc. Some essential knowledge before budgeting for steel structures: (1) It is necessary to know the construction process of steel structures, including how each process involves material requisition, cutting, and construction. This can help to calculate the amount of work in the future without revealing where there is more loss; (2) To learn the construction specifications for steel structures, such as how to arrange column foot pad iron, what are the requirements, and how many are needed; Non destructive testing is required for H-beam butt welds to determine which one is the H-beam wing plate and which one is the H-beam web plate. The first level weld of the wing plate requires 100% ultrasonic testing, and the second level weld of the web plate requires 20% ultrasonic testing; (3) It is also necessary to understand the quota and know which sub items are included in the process metal structure production and installation quota. Specifically, which sub item should be included for a certain amount of work, so as to clearly indicate the quantities of different sub items on the calculation draft for future reference.

Steel structures have high reliability and a high degree of mechanization in their manufacturing and installation. Steel structural components are easy to manufacture in factories and assemble on construction sites. Mechanized manufacturing of steel structural components in factories has high precision, high production efficiency, fast assembly speed on construction sites, and short construction period. Steel structure is a type of structure with a high degree of industrialization. 4. Steel structures have good sealing performance due to their welded structure, which can achieve complete sealing and create high-pressure vessels, large oil tanks, pressure pipelines, etc. with good air and water tightness. 5. Steel structures are heat-resistant or not. When the temperature is below 150 ℃, the properties of the steel change very little. Therefore, steel structures are suitable for hot workshops, but when the surface of the structure is exposed to thermal radiation of around 150 ℃, insulation panels should be used for protection. When the temperature is between 300 ℃ and 400 ℃ The strength and elastic modulus of steel both significantly decrease, and the strength of steel tends to zero when the temperature is around 600 ℃. In buildings with special fire protection requirements, steel structures must be protected with refractory materials to improve their fire resistance rating. 6. Steel structures have poor corrosion resistance, especially in humid and corrosive environments, and are prone to rusting. Generally, steel structures require rust removal, galvanizing, or coating, and regular maintenance.

When calculating the plan of steel structure accessories, do not calculate all the ladders at this elevation based on a single elevation plan. This is easy to calculate weight and can be quite cumbersome. For example, if you calculate the ladder at this level when calculating the plan at an elevation of 10m, and also calculate the ladder at this level when calculating the plan at an elevation of 20m, then the two ladders calculated are likely to be ladders from 10m to 20m or from 20m to 10m The ladder, two ladders are actually one ladder, and when calculating other engineering quantities, the ladder is calculated uniformly. This way, different elevations can be calculated together, making it difficult to calculate weight and exposure. Moreover, the number of different ladders can be counted, and if there is one ladder, the engineering quantity of one ladder can be calculated. In the future, it only needs to be multiplied by the number of ladders, and the ladder can be calculated continuously after taking out the detailed drawing of the ladder, avoiding the need to search for the detailed drawing of one ladder for calculation. After calculation, it can be collected and the next ladder can be found in the detailed drawing of the ladder. This can greatly improve the efficiency and accuracy of calculation. When calculating the length of a column, attention should be paid to the elevation of the column base and the thickness of the column bottom and top plates. The thickness of the column bottom plate can be seen in the drawing, but there is no detailed thickness in the column top plate drawing. Different columns have column top plates with different thicknesses, which can be found in the node diagram. Node plate calculation is a difficult point in the calculation of steel structure engineering quantities, so it is necessary to carefully understand the node diagram before calculating the node plate. When calculating the node plate, if the node plate is not a regular rectangle, the longest and widest sides in the diagram should be calculated according to the area of the rectangle. It is necessary to distinguish what kind of beam is steel connected and what kind of beam is hinged. Different beams correspond to different support beams, and their node plates are also different. Therefore, when calculating the node plate of the composite node, attention should be paid to the type of support beam. When calculating the node plate of the composite node, attention should be paid to not counting weight, and the node diagrams at the top and middle of the column should be distinguished for calculation. Moreover, the node diagrams of two beams with a height greater than 50 and less than 50 are different, and attention should be paid to distinguishing them for calculation. When calculating some special engineering quantities, the means of manufacturing the equipment should also be calculated. For example, when calculating the engineering quantity of a fan-shaped platform, the specifications and number of molds required for manufacturing its angle steel ring should also be calculated to prevent future trouble in searching. After calculating all the engineering quantities, it is possible to calculate the required amount of H-shaped steel for over exploration according to the specifications, and calculate the weight of steel structure lifting and reinforcement based on technical measures..

Steel structure design is designed to facilitate the production of steel structures and the operation activities of operators. Components should be placed at a certain height, whether they are stacked shelves, assembly tire racks, welding tire racks, etc. They should be 0.4-1.2m away from the ground. Therefore, operators are actually within the space range surrounded by heavy objects at any time and anywhere except in the safe passage. When making large steel structures, or narrow and oversized components with high height and unstable center of gravity, there is a greater possibility of tilting and tilting of the structure and components. Therefore, it is necessary to attach great importance to the prevention of safety accidents. In addition to the operator's own protective awareness, it is also necessary to take care of all aspects to avoid safety accidents. In various processes of steel structure production, many require the use of mechanical equipment such as cutting, punching, pressing, sawing, drilling, and grinding. This is a direct contact operation between humans and machinery, and accidents caused by mechanical damage often occur. But the probability of mechanical damage accidents is second only to accidents caused by falling workpieces during transportation, and necessary protection and protection must be taken..

Contact person for iron sheet supply at Lishui enclosure construction site: Ms. Peng. Foshan City specializes in the design, production, processing, and installation of steel structure factories and simple factories. We have multiple professional personnel. Our main business includes professional iron shed construction, star tile shed construction, steel structure factory building construction, simple manufacturer construction, lightbox frame welding and production engineering, steel structure (factory) installation engineering, etc. Steel structures shall comply with the relevant provisions in the following table: 1. Steel structures that are not fully welded: ≤ 0.2+0.02t and ≤ 1mm, with a cumulative length of ≤ 25mm, ≤ 0.2+0.04t and ≤ 2mm for every 100mm length of weld seam that is not fully welded, and a cumulative length of ≤ 25mm for every 100mm length of weld seam that is not fully welded. Individual arc scratches are not allowed or permitted. 6. The depth of defective joint notches should be ≤ 0.05t and ≤ 0.5mm, every 1000mm The length of the weld seam shall not exceed one point, the depth of the notch shall be ≤ 0.1t and ≤ 1mm, and there shall not be more than one point in every 1000mm length of the weld seam. 7. Surface pores on the steel structure are not allowed, and two pores with a diameter of ≤ 0.4t and ≤ 3mm are allowed in every 50mm length of the weld seam; The hole spacing should be ≥ 6 times the diameter of the hole. Surface slag inclusion is not allowed. The depth should be ≤ 0.2t, and the length should be ≤ 0.5t and ≤ 20mm.

Grid structures are currently mainly used in some large buildings. Although grid structures have many advantages, their popularity has not yet reached the level of popularization. Today, we will mainly talk about the waterproof measures of grid steel structure buildings. 1. Construction measures: The waterproof materials currently used in steel structure buildings are not very effective and have a short service life. So, for grid structures, it is necessary to first familiarize oneself with various measures for waterproofing steel structures, and waterproofing materials cannot be omitted. 2. For building selection, in order to ensure the waterproof effect of the grid structure building, it is recommended to choose a single ridge form as much as possible. This is mainly to avoid water ditches inside the building, and external gutters should also be used as much as possible for edge gutters. And for the selection of materials, it is also necessary to make a reasonable choice based on the drainage slope and slope length. 3. Drainage organization, the precipitation intensity varies in different regions, so when designing drainage organization, it is necessary to fully refer to some precipitation data to arrange drainage points reasonably. Can the light steel structure portal frame purlin also serve as a rigid tie rod? Theoretically, it should be possible. But it must be calculated by pressing the bending member and meet the stiffness requirements of the compression bending member; At this point, the weak axis rotation radius should be increased, usually by selecting two C-shaped purlins back-to-back and connecting them with bolts or welds to form a composite section similar to an I-shaped one. The purlin also serves as a rigid tie rod, and the connection between the purlin and the steel beam is also important. If M12 ordinary bolts are used, the purlin is generally 2.0-3.0mm thick. Even if the bolt shear resistance is sufficient, the pressure bearing capacity of the plate cannot be met. Therefore, high-strength bolts (grade 8.8) with friction type connections should be used in this area, and long circular holes cannot be opened on the purlins because axial force cannot be transmitted after opening long circular holes on the purlins. Therefore, friction type connection bolts should be required to have holes (1.5-2.0mm larger than the nominal diameter of the bolt).

2、 Good energy-saving effect, the wall adopts lightweight energy-saving standardized C-shaped steel, square steel, sandwich panel, with good insulation performance and seismic resistance, saving 50% energy. Thirdly, using steel structure system in residential buildings can fully utilize the good ductility and strong plastic deformation ability of steel structure, with excellent seismic and wind resistance performance, greatly improving the safety and reliability of residential buildings. Especially in the event of earthquakes or typhoons, steel structures can prevent collapse damage to buildings. 4、 The total weight of the building is light, and the self weight of the steel structure residential system is light, about half of that of the concrete structure, which can greatly reduce the foundation cost. 5、 The construction speed is fast, and the construction period is at least one-third shorter than traditional residential systems. It only takes 20 days and five workers to complete a 1000 square meter building. 6、 Good environmental protection effect. During the construction of steel structure residential buildings, the amount of sand, stone, and ash is greatly reduced. The materials used are mainly green, 100% recycled or degraded materials. When the building is demolished, most of the materials can be reused or degraded without causing garbage. 7、 Flexible and practical. Large open room design, indoor space can be divided into multiple schemes to meet the different needs of users. 8、 Meet the requirements of residential industrialization and sustainable development. Steel structures are suitable for large-scale production in factories, with a high degree of industrialization, and can integrate advanced products such as energy saving, waterproofing, insulation, doors and windows into a complete set of applications, integrating design, production, and construction, and improving the level of the construction industry.

2) The advantage of optimizing design is that if the original structural design is too conservative, after being optimized by experienced steel structure designers, the project cost can be significantly reduced while ensuring compliance with national regulations and the owner's usage requirements. The disadvantage is that the bidding process and subsequent secondary review may require an additional 3-4 weeks, and some bidding units may not have sufficient technical strength. After the above analysis, we can easily conclude that if the project schedule is very tight and the owner is not very sensitive to the cost of steel structure engineering, and if the project is completed later than the scheduled time, it will cause greater losses in other aspects, then choosing to quote according to the drawings is a wiser choice. If the project schedule is not so tight and the owner is also concerned about the project cost, then there is no doubt that a bidding unit with design capabilities should be selected to optimize the quotation. In addition, some bidding units may excessively optimize the steel structure in order to gain a price advantage in the competition, and may even encounter situations that do not meet national standards. In order to avoid unsafe excessive optimization, it is necessary to review the optimization design of the steel structure company. Generally, it should be submitted to the design institute for preliminary review during the bidding stage, and then submitted to the drawing review company for secondary review after the bid is awarded..

4. Durable: Easy to maintain, steel structure buildings designed with general-purpose computers can withstand harsh weather conditions and only require simple maintenance. 5. Reasonable cost: Steel structure buildings have light weight, reduce foundation costs, fast construction speed, and can be built and put into operation as soon as possible. The comprehensive economic benefits are much better than concrete structure buildings. The advantages of building a new factory building are not only these, but also numerous advantages such as environmental protection and pollution-free. With the continuous enhancement of people's environmental awareness, steel structure factories have become a good choice. Foshan Duoxin Steel Structure Engineering Co., Ltd. always adheres to the business philosophy of "creating value for customers" and "tailor-made for customers", the corporate values of "being a person for emotions, doing things for hearts", and the service tenet of "treating every small thing of the customer as our major event". We continuously improve and enhance our technological innovation capabilities and basic management, further enhance our core competitiveness, and provide better services, higher quality steel structure products, and more perfect steel structure construction projects for customers at home and abroad. (For example, steel structure factories, warehouses, roof adding layers, pedestrian overpasses, canopies, attic and other projects.).