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Prefabricate and assemble Steel building accessories on the steel platform according to the installation sequence and process requirements to ensure the welding quality.
The spacing between the splicing joint of flange plate and web plate of section steel shall be greater than 200mm. The splicing length of flange plate shall not be less than 2 times of plate width; The web splicing width shall not be less than 300 mm and the length shall not be less than 600 mm.
In order to facilitate welding and ensure welding quality, the stiffener plates, connecting plates, base plates and cantilever beams (beams) on columns and beams shall be assembled and welded on the ground steel platform according to the dimensions of the construction drawing.
The Steel building accessories prefabricated on the steel platform shall not only be fabricated and assembled according to the construction drawings and specifications, but also consider the process of on-site installation and the change of installation size.
Some Steel building accessories users do not know that steel structures still need to be maintained and maintained. As a result, there is serious corrosion that users often can't find out, which makes steel products appear many unsafe hidden dangers, reduces the safety of Steel building accessories in use, and even affects normal use functions. It is recommended that the design unit not only put forward the painting requirements of the steel structure in the painting design description of the steel structure, but also put forward the maintenance and maintenance requirements of the Steel building accessories according to its use.
There are many ways to prevent Steel building accessories from rusting, and the following are usually used.
The steel structure is made of alloy steel that is not easy to rust
Chemical oxide layer protection method
Using metal coating protection method
Non-metallic coating protection law
In the later maintenance and maintenance process, non-metallic coating protection method is especially commonly used. The surface of the component is protected by paint and plastic, so that it does not contact the surrounding corrosive medium, so as to achieve the purpose of anti-corrosion. This method has good effect, low price, and has a wide range of paint varieties, a wide range of options, and strong applicability. It is not limited by the shape and size of the component. It can form a film with any shape on the surface of the component. The adhesion is firm. It can also follow the temperature change. The components are telescopic and easy to use. It is also possible to give the component a beautiful color.
Great products begin with the best engineering staff, and Qingdao Xinguangzheng Steel Structure Co., Ltd. is ready to assist you with your technical requirements for Steel building accessories.
Introduction of Zhongjie era Steel Structure Frame Overpass Project
Zhongjie Times Square overpass project is the first Cross Street overpass project in Pingdu. The whole project is composed of three overpasses. The length of the straight overpass on the east side is 56.3 meters and the width is 5 meters. The length of the straight overpass on the west side is 49 meters and the width is 5 meters. The diameter of the main bridge surface of the central circular overpass is 56 meters. The narrowest part is 6.5 meters and the maximum width is 12 meters. The construction of the overpass on Hongqi Road can avoid the interference of people and vehicles To improve the road capacity, and effectively solve the problem of efficiency and safety of a large number of people crossing the street.
After completion, it will become the most characteristic commercial block with urban flavor in the main urban area of Pingdu City, as well as the landscape landmark and cultural landmark of Pingdu.
Color steel insulation sandwich panel is the basic materials for steel structure buildings, which is suitable for steel structure industrial plant. It is composed of two layers of formed metal panel and directly foaming, curing molding polymer heat insulation inner core. Color steel insulation sandwich panel commonly used insulation materials are: glass wool, polystyrene(EPS), polyurethane(PU), Rock wool and other insulation materials.
Then, what's the difference between these three insulation materials?
1) Glass wool sandwich panel. Glass wool is a good inorganic thermal insulation material, glass wool is obviously characterized by good fire resistance, flame retardant and moisture absorption, and its price is cheap. The thermal conductivity of the glass wool sandwich board is not greater than 0.038 W/(m2•K).
2) Polystyrene (EPS) sandwich panel. Polystyrene is a polystyrene resin as the main raw material, through the foaming agent foaming and made of internal with numerous closed micropores. Its insulation effect is good, the price is cheap, the strength is slightly poor. Polystyrene (EPS) sandwich board, thermal conductivity is not greater than 0.038W/(m2•K).
3) Polyurethane(PU)sandwich panel. The thermal conductivity of polyurethane sandwich board is no more than 0.033 W/(m2•K), with good thermal insulation performance, good water resistance, good thermal insulation effect, high strength, foam can be made into any shape, suitable for site construction, but the price is expensive.
To meet different thermal insulation requirements, consider the thermal conductivity of the steel structure material and the thickness of the insulation layer. The thermal conductivity of commonly used steel structure insulation materials is as follows: polyurethane foam> polystyrene foam >glass wool > rock wool.
Xinguangzheng steel structure provide you professional technical service for steel structure buildings.
The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, venues, super high-rise buildings and other fields. The steel structure is easy to rust. Generally, the Steel building accessories shall be derusted, galvanized or coated, and shall be maintained regularly.
For maintenance personnel, the daily maintenance of Steel building accessories should first be the maintenance of the surface coating of the components. The maintenance of the coating directly affects the service life of the steel structure. Therefore, to do a good job in daily maintenance, you should start with the following points:
1. The surface of the steel structure must be kept clean and dry, and the places where the steel structure is easy to accumulate dust (such as the steel column foot and the gusset plate) should be cleaned regularly.
2. Regularly check the integrity of the protective coating of Steel building accessories. If one of the following occurs, it should be maintained in time:
1) It is found that the area of the coating surface loses its luster to 90%;
2) The area of roughness, weathering and dry cracking of the coating surface reaches 25%;
3) The paint film bulges in the coating and the slightly rusted area of the components reaches 40%;
3. The steel structure parts affected by high temperature and high temperature should be equipped with protective plates to protect the coating from high temperature damage.
4. Try to avoid contact of Steel building accessories with corrosive substances, and clean up those that have been in contact.
1. According to the principles of production applicability, reliable performance, safe use, and convenient operation, a variety of Steel building accessories should be selected reasonably.
2. The inspection and measurement equipment should ensure the unity, accuracy and reliability of the value transmission. Various measuring tools such as steel tape, board, square, level, spring force gauge and so on used in the construction shall be verified before storage to ensure that the measuring instruments entering the construction site are qualified. The tools used in the construction shall be checked regularly . Ensure that each tool always meets the measurement accuracy requirements in the same project.
Steel building accessories must weld the cracks between the two drill holes. During welding, the edges of the cracks can be gas-cut into different types of grooves according to the thickness of the component to ensure the quality of the welding. When the thickness is less than 6mm, use 1 shape (that is, without beveling); when the thickness is greater than 6mm and less than 14mm, use the V-shaped bevel; when the thickness is greater than 14mm, you need to use the X-shaped bevel.
As technology advances, Steel building accessories are increasingly used in everyday life. Qingdao Xinguangzheng Steel Structure Co., Ltd. is known for high precision Steel building accessories. And you can connect them.
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.
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 information
15 seconds to show you the speed of XGZ Prefabricated building
Total Building Area 3578.38 ㎡
200 Steel Columns
55 Integrated Floor Slab
Main Construction Completed in 15 days.
Description
Assembly new office building is a comprehensive project. Since the construction, through the development of detailed construction plan, it took only 4 months to complete the various links from the old Office demolition, civil construction, five floor platform assembly, curtain wall and maintenance plate installation, water supply and drainage circuit construction, elevator air conditioning installation and office building decoration, especially the five floor framework assembly link and decoration link which have exceeded the normal construction period On the basis of that, a breakthrough was made.
In the process of construction, all links are locked in close cooperation, construction and installation speed is fast, safety and quality are guaranteed, and a large number of assembly building installation technical details and practical experience have been accumulated.
Commercial steel building, the preferred steel and metal building in construction, has quickly become the first choice for residential and commercial building safety. Here we are going to talk more about the Commercial steel building !
What are the advantages of Commercial steel building?
Why do more and more people choose Commercial steel building?
What are the advantages of Commercial steel building?
In this field of commercial construction, Commercial steel building has greatly exceeded the normal construction capabilities of its competitors.
Because Commercial steel building has a quality guarantee of up to 40 years, the steel structure of the building is durable.
For the daily maintenance of wall panels, roofs and metal buildings, steel structure owners may pay a huge price for this, because steel structure houses are more resistant to wear and tear than other materials every day.
Commercial steel building is safe in extreme weather. When your country/region is under extreme climatic conditions, such as earthquakes, tornadoes, ice storms, or just a strong thunderstorm, this Commercial steel building is proven to be more resistant than others because it is made of steel .
Because of this, government agencies and municipalities always choose Commercial steel building to protect their most important property from severe weather.
Because of this, more and more residential customers choose to use steel to build their houses for maximum protection.
With a steel structure, you can have many advantages, such as economy, beauty and reliability.
In addition to these eye-catching features, Commercial steel building also has great flexibility for customers who want to configure ideal buildings to meet their precise requirements and satisfy their aesthetics.
Compared with other buildings, customized Commercial steel buildings and residences provide users with more versatility, and metal buildings are also a very economical choice for new buildings.
The steel structure of Commercial steel building has a series of advantages, such as high strength, light weight, good seismic performance, high degree of industrialization, fast construction speed, small floor area and so on. Steel has good mechanical processing performance, which is most easy to realize modular, standardized, industrialized, assembled and mechanized production of buildings, realize no fire, no water, no dust and no garbage on the construction site, have good recycling of steel, and most easy to realize the concept of full-life green building. Due to the strong plasticity of steel structure, it can be widely used in civil buildings, public buildings and commercial buildings. Such fields as industrial plants, low rise, multi-storey and super high-rise buildings, civil residences, large public buildings, terminal buildings, thermal power plants and boiler steel frames, highway and railway bridges and offshore oil platforms.
Qingdao Xinguangzheng Steel Structure Co., Ltd. is a Commercial steel building manufacturer established for more than several years. Please consult our company for details through https://www.steelstructureonline.com/! Customer requirements are our pursuit.