Commercial steel building is a new type of energy-saving and environmentally-friendly building system. It is known as one of the "green buildings" in the 21st century. It is an energy-saving, environmentally-friendly, and recyclable building structure.
The general sequence of commercial steel building welding is: pre welding inspection → preheating and derusting → installation and welding of base plate and arc striking plate → welding → inspection
1. Before commercial steel building welding, check the groove angle, blunt edge, gap and staggered joint, and remove the rust, oil stain and iron oxide scale in and on both sides of the groove.
2. Preheating. Before commercial steel building welding, gas welding or special baking gun shall be used to heat the groove and the base metal within 100mm on both sides evenly, and the surface thermometer shall be used to measure the temperature to prevent the temperature from meeting the requirements or local oxidation on the surface and preheating temperature.
3. Recheck the preheating temperature. If the temperature is not enough, reheat it to make it meet the requirements.
4. When assembling and welding the backing plate and arc striking plate, the surface cleanliness shall be the same as that of the groove surface, the backing plate shall be close to the base metal, and the arc striking plate shall be firmly welded with the base metal.
1. Welding: the weld bead of the first layer shall seal the connection between the base metal and the backing plate in the groove, and then weld layer by layer until the groove is filled. After each weld is welded, the welding slag and spatter must be removed, and the welding defects shall be ground away and repaired in time.
2. An interface must be welded continuously. If it is necessary to stop welding halfway, it shall be subject to thermal insulation and slow cooling treatment, and shall be heated again according to the regulations before re welding.
3. In case of rain and snow, commercial steel building shall stop welding. There shall be a wind shield and canopy around and above the welded junction of components. When the wind speed is greater than 5m / s, the welding shall be stopped. When the ambient temperature is lower than zero, preheating and post heating measures shall be taken for construction according to regulations.
4. Carbon structural steel shall be subject to weld flaw detection after the weld is cooled to ambient temperature, and low alloy structural steel shall be subject to weld flaw detection 24 hours after completion.
5. Welders and inspectors of commercial steel building shall carefully fill in the operation record form.
When purchasing commercial steel building, we should pay attention to the design of waterproof, heat-insulating and anti-corrosion of the steel structure. The design documents did not specify the steel derusting grade and paint and coating thickness, and did not adopt corresponding measures according to the different fire resistance limits of different parts. commercial steel building of thermal insulation protection measures needs to be avoided.
Commercial steel building 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.
Project Area: 23408 sqm
Project Usage：Pakistan Cola workshop
Project Location: Lahore, Pakistan
Project weight of steel structures： 760 tons.
Wall & Roof：0.5mm galvanized steel sheet +50mm glass wool+0.4mm galvanized steel sheet.
Span: Multi-Span 100m and 50m
Total Height: 12m
Project picture of Pakistan Prefabricated Steel Structure Construction Cola Workshop :
A brief introduction to you about our company first, then you can contact me if there is suitable project in the future.
1200 workers, 360000 ㎡ non-dust workshop, 25 years experience, CE, ISO9001, ISO9712, ISO3834, BV, SGS certificated, one hour reach Qingdao port, our company, as a manufacture, this is how we keep good quality and competitive prices for global valued customers.
We provide steel building design, farm house design, manufacture and installation service.
Steel building accessories is an ideal elastic body with good homogeneity and isotropy, which is most in line with the basic assumptions of general engineering mechanics; The material has good plasticity and toughness, can have large deformation, and can well bear dynamic load; Short construction period; It has a high degree of industrialization and can carry out professional production with a high degree of mechanization.
What are the Steel building accessories we often need?
What are the materials of Steel building accessories?
What should the construction personnel of Steel building accessories pay attention to?
1. Ceiling connection accessories
Ceiling connection accessories are also one of the important accessories of Steel building accessories. It is suitable for fixing accessories between the wall and ceiling connection accessories in the ceiling installation method. The ceiling connection accessories can be divided into different types according to the cable length and type. Different parts of the unit are used.
2. Branch chain plate accessories
Regardless of the installation method, the branch chain plate accessory is one of the necessary accessories, because it needs to connect the steel structure horizontally. This is the secondary reinforcement of the aluminum alloy frame. At the same time, straight chain plate accessories can also be used. To the role of integration and optimization.
1. Purchasing materials according to Steel building accessories design drawings. Steel materials, profiled steel plates, welding materials, high-strength bolts, insulation materials and other materials must meet the specifications, varieties, and performance required by the design, and have a material certificate. Welding electrodes, welding wires, fluxes, etc. should match the base metal. Make re-inspection records for the imported materials as required, and keep track of the use of main materials.
2. The steel is stored in a dry and dedicated place, and it is not allowed to store it in the open air.
3. For steel surface damage, after grinding and trimming, the local thickness reduction should not be greater than the rolling thickness tolerance.
4. Welding electrodes, wires, and fluxes should meet the relevant technical requirements of the current national standard and be compatible with the strength of the main metal.
1. Special procedures with complex technology, high difficulty and high precision should be completed by skilled and experienced personnel.
2. All types of welders engaged in structural production must pass the examination and obtain a certificate issued by the national agency accreditation department. The certificate indicates the content of welding and the expiration date.
3. The non-destructive testing personnel who check the quality of the welds shall hold the corresponding level range testing qualification certificate.
4. All positions personnel should hold a certificate to work.
Knowing this, do you also need to order Steel building accessories? Qingdao Xinguangzheng Steel Structure Co., Ltd. is committed to providing various Steel building accessories with high quality for all customers from all over the world.
Industrial steel building is a great invention. All components are prefabricated in the factory, and the site only needs to be assembled simply, thus greatly shortening the construction period. For a building of 6000 square meters, the basic installation can be completed in only 40 days.
What should I pay attention to when using Industrial steel building?
What are the reasons why Industrial steel building is used more and more widely?
What are the steps involved in the general process of Industrial steel building installation?
1. Industrial steel building construction has strict requirements for construction measurement. When the steel structure workshop stops the structural calculation, the mechanical model is very clear, and the size change has an obvious influence on the model. Therefore, during the manufacturing and installation stages, construction measurement is a more important issue. For example, inaccurate blanking will result in deformation of components; failure to be placed in place during installation will affect the load-bearing effect of the environmental characteristics of the construction site welding of steel structure workshops.
2. The steel of Industrial steel building has the characteristics of thermal expansion and contraction, and it is sensitive to weather, temperature and other conditions during the installation process. Industrial steel building welding has its own special technical requirements. In practice, when natural conditions cannot meet the work requirements, manual measures are often taken to create conditions for construction, such as preheating of welding rods and preheating and heating of steel plates. If the size of the steel structure factory building changes greatly during the construction process, the temperature is too high or too low will affect the accuracy of the device.
3. The Industrial steel building is easy to rust and has poor fire resistance, so it needs to be painted and maintained. Paint the steel structure factory building fireproof coating on the exterior of the Industrial steel building to play the role of fire protection and heat insulation maintenance, to prevent the steel from rapidly heating up in the fire and reducing its strength, and to prevent the steel structure factory building from losing its support ability and causing the building to collapse.
The grid structure of Industrial steel building has the advantages of reasonable stress, large stiffness, light weight, single member and convenient fabrication and installation. In recent years, it has been widely used in public and industrial buildings with large span and large column network. It can be used not only for roof structure, but also for floors, walls and special structures.
1. The main structure hoisting of Industrial steel building,
2. Secondary structure installation of Industrial steel building,
3. Installation of roof panel and insulation layer of Industrial steel building,
4. Wall maintenance and installation,
5. Finally, the detailed structure of Industrial steel building.
After reading this, have you also had the idea of ordering Industrial steel buildings. At Qingdao Xinguangzheng Steel Structure Co., Ltd., you can get the best quality Industrial steel buildings and the most intimate after-sales service.
Agricultural steel building components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in various fields of agricultural production. Steel structure is easy to rust. Generally, steel structure needs to be derusted, galvanized or painted, and it needs to be maintained regularly. Here we are going to know more about the Agricultural steel building.
What are the architectural characteristics of Agricultural steel buildings?
What are the appearance characteristics of Agricultural steel building?
What should be paid attention to when constructing Agricultural steel building?
1. Industrialization of the production process. The steel structure is only connected by high-strength bolts. It also has the advantages of quick installation and return on investment.
2. Use high-quality materials with high toughness and plasticity. The quality is safe and reliable.
3. It also has the advantages of flexible design and decoration, low cost, and various colors.
The Agricultural steel building has no beams and no purlins, wide space, large spanning capacity, and the span of 6-32 meters can be chosen at will. Low cost, low investment, economical. The design and construction period is short,
The roof construction of Agricultural steel building can be completed in 20 days. Colored galvanized steel sheet, mechanical seam connection, natural waterproof, no leakage.
The Agricultural steel building is beautiful in appearance, sturdy and durable, and requires no maintenance.
The Agricultural steel building is light in weight, the overall structure is scientific and reasonable, and the wind and seismic performance is superior. Wind resistance and snow load, can withstand strong winds of 160km/n per hour, and can withstand a snow load of 148kg.
The shape of Agricultural steel building is beautiful, colorful, novel and full of rhythm. Rich and diverse roof forms give the building a new appearance.
The Agricultural steel building has complete functions, the roof slab and beam are integrated, and it integrates multiple functions such as heat preservation, heat insulation, ventilation, and lighting.
1 Personnel engaged in high-altitude operations must hold a certificate to work, and earnestly abide by the safety construction regulations, wear flexible clothing, and it is forbidden to wear hard-soled and slippery shoes with nails;
2 Workers of Agricultural steel building wear safety belts;
3 A safety net is set under the working surface of Agricultural steel building;
4 Materials for high-altitude operations should be stacked steadily. They should not be placed on the edge or attached to the opening of the hole. If there is a possibility of falling, they should be withdrawn or fixed in time to prevent falling objects from injuring people.
The Agricultural steel buildings made by Qingdao Xinguangzheng Steel Structure Co., Ltd. feature attractive appearance, excellent performance, easy maintenance, and internationally advanced performance indicators, and are exported to more than 10 countries and regions.
Residential steel building is lightweight and high-strength. For buildings of the same weight, the steel structure has a small cross-section and a large net height, which can save building height. The number of layers of steel structure is more than that of concrete, which not only increases the building area, but also brings good economic benefits.
What are the advantages of Residential steel building?
What raw materials should be used for the walls of Residential steel building?
What is the roof system of Residential steel building?
1. Superior seismic performance
Compared with traditional residential structures, Residential steel building is a flexible structure and has a lighter weight. Therefore, buildings with the same fortification intensity and the same site will bear less seismic force, and the earthquake disaster caused by them will be weakened accordingly. The use of steel in the earthquake zone Structural housing will reduce casualties and property losses, with considerable comprehensive benefits.
2. Flexible layout and increased effective use area
Residential steel building adopts steel structure, which can realize large span under the premise that the cross-section is not too large, which makes the building function very flexible and can be flexibly arranged according to the needs of residents, which is conducive to meeting the needs of modern homes and adapting The needs of the modern housing market. Moreover, the steel structure is adopted, the cross-section of the beams and columns is small, and the use area of the residents is increased at the same time.
Residential steel building's steel frame system, steel frame-support system, steel frame-concrete core tube (shear wall) system outer walls can be filled with small concrete block walls, autoclaved lightweight aerated concrete slabs, and prefabricated reinforced concrete walls Board, steel wire mesh frame polystyrene sandwich panel, fiber cement external wall hanging panel, polyurethane composite external wall panel, metal surface embossed composite panel, etc. The inner wall can be made of glass fiber strong gypsum hollow board, fiber cement board infusion (foam concrete) wall, light composite wall board, etc.
1. The flat roof of the Residential steel building adopts steel beams (I-beam, C-shaped steel), prefabricated reinforced concrete roof panels, and thermal insulation and waterproof layer.
2. The sloping roof of Residential steel building adopts portal frame, truss, light steel keel truss (bracket), I-shaped (or C-shaped) and steel purlin, colored cement tile, colored steel plate tile and colored asphalt tile roof. Thermal insulation and waterproof layer should also be used in the slope roof. The thickness of the insulation layer is determined by thermal calculation and meets the requirements of energy-saving design standards.
It is an important choice in residential building construction. A good Residential steel building starts with the best engineering staff, and Qingdao Xinguangzheng Steel Structure Co., Ltd. is always ready to help you meet your technical and practical requirements.
Nowadays, more and more industrial parks prefer to build workshop, warehouse, office and other buildings by steel structures. Why are steel structures so popular with the public? It is mainly due to the four excellent functions of steel structure "light, fast, good properties and economical".
1. Light: The steel structure has the characteristics of light weight and excellent stress function.
Steel has the smallest ratio of density to strength compared with concrete and wood. For example, the weight of steel roof trusses is only 30% or even 25% of the same concrete roof truss under the same load and strength conditions. The weight of the steel structure house is about 50% of the reinforced concrete house, but the usable area is about 4% higher than that of the reinforced concrete house.
The steel structure is prefabricated in the factory then bolts contacted installation on site. It has the characteristics of mass production of large pieces and high-level precision of finished products, which effectively shorten the construction period and reducing the cost to give high investment returen. Compared with the construction period of reinforced concrete structure engineering, the steel structure is only 1/3 to 1/2 of the reinforced concrete structure under the same conditions .
3. Good properties: The steel structure has good properties and high reliability.
Steel has uniform of texture, isotropy, large elastic modulus, good plasticity ,good resistance and is an ideal elastic plastic body. Therefore, the steel structure will not suddenly break due to occasional overloading or partial overloading, it can adapt to the oscillating load, and the calculation model can reflect the mechanical properties of the steel well, so the analysis is accurate and reliable.
The cost of steel structure is higher than concrete structure from the raw materials only, but the construction speed of steel structure is about 50% faster than concrete structure, which will save a lot of time and cost. The steel structure is more than 50% lighter than the overall weight of the concrete structure house, so that the cost of basic treatment and transportation will be reduced. Building is a systematic project includes many items, such as planning, manufacturing, transportation, installation, maintenance and management. Therefore, from the overall point of view, the steel structure is more cost saving.
Prefab House only prefabricates some parts, and it must be poured in the same way as traditional buildings on the construction site. It is not "building blocks" as imagined. Therefore, no difference can be seen from the appearance of the house after it is built. Here we are going to introduce the Prefab House.
What are the reasons why people choose Prefab House?
What are the advantages of steel structure prefabricated houses?
What are the advantages of Prefab House for building plant?
1. Prefab House is of great benefit to energy conservation and environmental protection. Through factory production and on-site assembly construction, it can greatly reduce construction waste and construction sewage, reduce construction noise, reduce harmful gas and dust emissions, and reduce on-site construction and management personnel. Generally, it can save 20% of materials and about 60% of water.
2. The housing industrialization of Prefab House is not only beneficial to the capital flow of development enterprises, but can also increase the speed of housing listing, so it can greatly alleviate the current situation of insufficient market supply and adjust the supply relationship. After large-scale promotion, construction costs can be reduced, and it will also play a role in restraining housing prices.
3. Comprehensive cost accounting shows that the construction cost of Prefab House is higher than that of traditional construction methods, but after large-scale promotion, construction costs can be reduced.
First, the components of prefabricated houses can be industrialized in factories. The components are equivalent to standard products and can be installed directly after being transported to the site. It can be said to be convenient and fast. The construction field during the construction period, especially the unparalleled advantages.
prefabricated houses with steel structure are more stable than those made of welded frame steel. In addition, it is cheaper and more economical. Long service life, 50-70 years. Locked with bolts, it can be used repeatedly without any maintenance.
1. Large span: such Prefab House can realize single span or multi span, and the maximum span without center column is 36m.
2. Low cost: according to the requirements of customers, the unit price of Prefab House ranges from $150 / m2 to $300 / m2.
3. Convenient installation and short construction time: save manpower and cost for customers.
4. Prefab House has a long service life: up to 50 years
5. Environmental protection: such buildings are free of harmful substances.
6. Structural stability: earthquake resistance, wind resistance and snow resistance.
7. Others such as waterproof, heat insulation and energy saving.
The Prefab House produced by Qingdao Xinguangzheng Steel Structure Co., Ltd. has been exported to several countries. And there are several offices in the country, which is convenient for domestic customers to maintain. Based on technological innovation, their company constantly improves product quality and provides you with professional Prefab House.