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Structural parts: material, surface roughness, tolerance, surface treatment, straightness (or radian)
Connection: hole position deviation, bolt grade; welding method, welding standard, welding material; air tightness, non-destructive testing, liquid penetration testing, etc. are required
Overall structure: verticality, horizontality, etc.
Packaging: packaging materials, packaging methods
Storage: ambient temperature, ambient humidity
Transportation: loading and unloading, placing in vehicles, placing in containers, etc.
Fire protection technology. One of the most critical issues in agricultural steel building is the application of fire protection technology. The fire resistance rating of light steel structure houses is level 4. For light steel structure residential buildings, fire-resistant gypsum boards are pasted on both sides of the wall and the ceiling of the floor. For ordinary firewalls and household walls, 25.4 mm thick (1 inch) gypsum boards are used to protect them to meet the 1-hour fire protection requirement. The glass fiber filled between the wall columns and the floor joists also plays an active role in protecting fire and heat transfer.
Sound insulation technology. The agricultural steel building is filled with glass wool between the inner and outer walls and the floor joists, which effectively prevents the audio part transmitted through the air. For the impact sound transmitted through the solid, the following construction is performed: the partition wall is composed of two wall columns. There are two walls with intermediate spaces; for the small keel used to fix the gypsum board for the suspended ceiling, an elastic structure with small cut grooves is used to effectively reduce the transmission of structure-borne sound between floors.
If an agricultural steel building is damaged, we must immediately recognise and remedy the problem. The main factors of steel structural damage are:
(1) the structural viability of agricultural steel buildings is insufficient due to changes in load, overdue service and changes in rules and regulations;
2) The components of agricultural steelworks are deformed, twisted, damaged, deformed, etc., due to various accidents; which results in a weakening of the cross-section of the component, a twisting of the rod and a tearing of the connection;
(3) deformation, cracking and retardation of agricultural steel components or connections due to temperature differences;
4) The agricultural steel structure corrodes due to the erosion of chemical substances and electrochemical corrosion leads to a weakening of the cross-section of the steel structure;
5) Other include errors in design, production, construction and illegal use and operation during the service period.
There are three main technical reinforcement measures for agricultural steel construction:
1) Cross-section defences: Apply the element locally or over the entire length of the element with steel and connect it to a whole to carry the force together;
2) Change the calculation diagram: add additional supports, adjust load distribution, reduce cutting force level, force displacement of static indefinite structural support and reduce peak voltage;
3) Pre-tensioned cable method: use high-strength cables to strengthen the weak links of the structure or to improve the overall durability, stiffness and stability of the structure.
Qingdao Xinguangzheng Steel Structure Co., Ltd. has been developing agricultural steel buildings for many years, and is known as "the national brand leader in the Chinesesteel building industry". Therefore, customers can choose their products with confidence.
The beam-column joints of Prefab House are mainly connected by bolt welding. However, bolted joints are recommended for fabricated steel structures. The advantage of bolted connection (weld-free connection) is that the installation speed is fast and the construction quality is easier to control.
1. The construction period is short. Generally, the first floor of Prefab House can be built in three or four days, and it only takes one or two days. Steel structure residential systems are mostly manufactured in factories and installed on-site. The amount of on-site work is greatly reduced. Therefore, the construction period can be greatly shortened, and the noise and dust generated during the construction, as well as the consumption of on-site resources and various on-site expenses are correspondingly reduced. Compared with reinforced concrete structures, the construction period can generally be shortened by one-half, the investment benefits can be brought into play in advance, capital turnover can be accelerated, and construction costs can be reduced by 3%-5%.
2. Good seismic performance. Because the steel of Prefab House is an elastically deformable material, it can greatly improve the safety and reliability of the house. The steel structure has high strength, good ductility and light weight, which can greatly improve the mechanical performance of the structure, especially the seismic performance. Judging from the situation after the earthquake at home and abroad, the number of collapsed steel structure residential buildings is very small.
In line with the development direction of building energy efficiency. Prefab House uses steel as the frame and thermal insulation wallboard as the enclosure structure, which can replace clay bricks, reduce the amount of cement, sand, stone, and lime, and reduce the damage to non-renewable resources. On-site wet construction is reduced, and the construction environment is better. At the same time, steel can be recycled and reused, and the environmental pollution during construction and dismantling is small, and its energy saving index can reach more than 50%, which belongs to the green building system.
The application of steel structure in Prefab House has opened up a new application market for my country's steel industry. It can also drive the research and application of related new building materials.
Steel-finished house is generally a residential building constructed with factory-made, economical steel profiles as a supporting work and new lightweight, heat-conserving, heat-insulating and high-strength wall materials as a home. The industrialisation of the steel building house refers to the use of steel construction houses as the final product. Through socialized mass production, the process of investment, development, construction, construction and customer service of steel dwellings is centralised and unified into an overall organisational form. The industrialization of the steel building house is the development trend of the steel building house.
Knowing this, do you also need to order a Prefab House? Qingdao Xinguangzheng Steel Structure Co., Ltd. is committed to providing various Prefab Houses with high quality for all customers from all over the world.
Project Area: 25000 sqm
Project Detail:
Xinguangzheng Prefabricated Steel Sports Stadium is single span maximum fish belly type box beam, the maximum span is 50 meters.
The maximum weights of a single piece is 109.5 tons
The web height of the maximum box member is 3.6 meters and the wing width is 0.9 meter.
The maximum thickness of the wing plate is 70m.
Project Spotlight:
The overall performance is a horn shape with great tension, and the architecturat form is landsccape architecture.
The roof of the building is full of greening, integrating the building with the park
The building is equipped with children's natatorium, basketball court, gym, study, culturalcenter and so on.
The project of steel structure hangar for African market constructed by Xinguangzheng Group has been completed smoothly. The Niger hangar project need comprehensive consideration, and a severer designing demand. The client has also a higher requirement for the portal.
Given the strictly demand for portal, Xinguangzheng has offered the most specialized blue print as well as installation services, and has finished the project excellently. We have thus gained our clients' trust and support.
Xinguangzheng will continuously seek for technical breakthroughs and new products, offer integrated settlements, and provide our clients with best products and best services, to give our clients more happiness.
Qingdao Activa Group is the largest outdoor leisure products R & D and production enterprise in the world. It has established factories and branches in 14 countries and regions. Currently, it has five hundred year brands in its industry, and 1820 patents at home and abroad. The first phase project of Qingdao Activa Group, which is contracted by our company, has a total construction area of over 80000, which is the general contracting project.
Steel structures are a new type of construction system that offers the benefits of low weight, easy installation, short construction time, good seismic performance, fast investment recovery and low environmental pollution. It is therefore generally preferred by all parties in the industry. Under the call for green construction, energy saving, environmental protection and resource recycling, steel structures have gradually become widespread in agricultural steel building and the scale of the steel construction industry has expanded further.
What are the requirements for the operating equipment of agricultural steel building?
What are the technical requirements for agricultural steel building?
What are the construction requirements for agricultural steel building?
1. The machinery and equipment of the agricultural steel building are operated and maintained by designated personnel, and the operating certificates are complete.
2. Mechanical operation part and on-site electricity requirements:
a. The rotation and dangerous parts of various machines and electric machinery must be equipped with protective devices.
b. Electrical equipment and wiring must be well insulated, with rain-proof and moisture-proof facilities.
c. The electrical box has a door, color code and number, which meet the installation height. The high-voltage leakage protector and zero grounding are complete. The switch box and electrical equipment must be "one machine, one switch, one leakage", and the fuse and actual equipment load Match.
d. When installing electrical equipment, the switches, circuits, grounding devices, etc. must be inspected, and they must be intact and undamaged, with good insulation.
(1) The agricultural steel building has a reasonable structure, a 360-degree undercut connection, and no bolts on the roof, which completely avoids water seepage and water leakage.
(2) Adopt self-fixing bolts to fix, simplify the operation and greatly reduce the labor intensity of workers. There is no need to set up a scaffold fixing nut, which improves the safety of operation.
(3) The boom of agricultural steel building is detachable and the angle can be adjusted freely, which is suitable for simultaneous construction of arch roofs with multiple spans.
1. First, according to the functional requirements of agricultural steel building, adopt a corresponding reasonable structure system. Achieve advanced technology, novel structure, and achieve the unity of architecture and structure.
2. The agricultural steel building is mostly based on rods, so the size of the rods is as modular and standardized as possible, which is convenient for mechanized manufacturing, transportation, installation, and improves productivity.
3. The agricultural steel building adopts high-efficiency steel with high economic indicators.
4. The nodes of agricultural steel building are very important. Appropriate connection methods should be adopted to make the node design consistent with the simplified structural calculation model. In the past, most of the structural damage occurred at the nodes, so the nodes must be carefully designed and constructed. Advanced and reliable connection methods are used.
Qingdao Xinguangzheng Steel Structure Co., Ltd. employs more than 100 workers, through the efforts of their entire staff, the agricultural steel buildings of high quality, widely used in a variety of architecture, have shared the broad masses of the worldwide market for over a decade.
How much do you know about the Agricultural steel building?
When you consider the building materials used in a new construction project, you will feel uneasy. In fact, by choosing steel (rather than wood, stone, brick, etc.), you have already taken the first step to ensure that the completed project produces the best results. Steel is attractive because of its unparalleled strength-to-weight ratio, ductility, price, aesthetics, and consistency of composition from the beginning. There are more and more applications of agricultural steel building in agricultural production. Let’s take a look below.
What is the significance of the development of agricultural steel building?
How to set the power supply in agricultural steel building?
What are the components of the agricultural steel building organization?
What is the significance of the development of agricultural steel building?
The economic benefits of the development of agricultural steel building are good. First of all, the entire building does not require beams and bars, and the cost is only two-thirds of the light steel structure, and the larger the span, the lower the cost. In addition, the construction of agricultural steel building can greatly shorten the construction period, and the daily construction area can reach 1000m, which greatly saves the construction of machinery and labor costs.
The social effect of the development of agricultural steel building is significant. The construction period of modern large-scale projects is closely linked to economic benefits. Because we have adopted agricultural steel building development, the construction of the project is completed ahead of schedule, which creates good conditions for agricultural production units to put into use in advance, and the social effect is significant.
How to set the power supply in agricultural steel building?
1. The main distribution box in the agricultural steel building should be installed near the power source, and the distribution box should be installed near the electrical equipment or power-using area.
2. The distribution box in the agricultural steel building is made of iron plate.
3. The distribution box in the agricultural steel building should be equipped with a working neutral terminal board and a protective neutral terminal board.
4. The metal box, metal base and shell must be protected and connected to zero. The distribution box must be protected from rain and moisture. There must be a secondary leakage protector in the distribution box, and each electrical equipment should have its own dedicated switch box, which must implement "one machine, one switch, one leakage, one box", equipment and lighting are disconnected, all power distribution The boxes are all equipped with doors and locks, and a dedicated person is responsible for keeping them, and a regular inspection and maintenance system is implemented.
What are the components of the agricultural steel building organization?
(1) Structure made of cold-formed thin-walled steel;
(2) Structure made of hot-rolled light section steel;
(3) Structure composed of welded and high-frequency welded lightweight steel;
(4) Structure made of round tube, square tube, rectangular tube, etc.;
(5) Structure made of components welded from thin steel plates;
(6) The structure made by the combination of the above various components.
Qingdao Xinguangzheng Steel Structure Co., Ltd.. has been committed to providing customers with agricultural steel buildings and perfect after-sales service so that customers can invest easily, use them with confidence, and have no worries.
The main structure of the commercial steel building can be installed simultaneously with the wall panel. The main structure and the wall panel are fixed by embedded parts and connectors, which is convenient for installation. It only needs to be hoisted in place, connected and fixed, and the three links of joint treatment are not required. No need for secondary grouting, and has the advantages of short construction period, high assembly rate, good integrity, and good wind pressure resistance.
(1) When the sides of the upper and lower columns without ear plates are symmetrically welded to 1/3 of the plate thickness by two welders on both sides, cut off the ear plates.
(2) Then two welders are symmetrically welded on both sides to 1/3 of the plate thickness on the side where the ear plate is cut off.
(3) Two welders will be responsible for the welding of two adjacent sides.
(4) The joints of the weld bead between every two layers should be staggered with each other, and the weld bead joints welded by two welders should also pay attention to the stagger of each layer. Pay attention to the temperature between the layers during the welding process.
(5) Welding process parameters:
CO2 gas shielded welding: wire diameter Φ1.2mm, current 280~320A, welding speed 350~450mm/min
Extending length of welding wire: about 20mm, gas flow rate 25~80L/min,
Voltage 29~34V, interlayer temperature 120~150℃
We must prefabricate and assemble commercial steel building steel components on the steel platform in accordance with the installation sequence and process requirements, and ensure the quality of welding production.
The spacing between the splicing seam of the splicing flange plate and the splicing seam of the web plate of the section steel should be greater than 200 mm. The splicing length of the flange plate shall not be less than 2 times the plate width; the splicing width of the web shall not be less than 300 mm, and the length shall not be less than 600 mm.
In order to facilitate the welding of commercial steel building and ensure the welding quality, try to weld the reinforcement plates, connecting plates, backing plates, and overhanging beams (beams) on the columns and beams on the ground steel platform according to the dimensions of the construction drawings.
In addition to the fabrication and assembly of steel components prefabricated on the steel platform according to the construction drawings and specifications, the process and installation dimensions of the commercial steel building on-site installation should also be considered.
The construction of commercial steel building has trained a new generation of construction and installation industrial workers. Factory production and mechanized installation avoid the high dependence of the traditional construction industry on labor, moderately reduce the impact of high labor costs brought on by the aging of the global population on the development of the industry, and predictably cultivate a new generation of construction and installation industry workers. It is of far-reaching significance to the sustainable development of the construction industry.
Qingdao Xinguangzheng Steel Structure Co., Ltd. has focused on the development and production of commercial steel buildings for several years. And it commits to provide perfect service for every customer from all over the world.