Spaceframe-SAFS

 1. Production of hollow steel balls and steel pipe rods In order to ensure the installation and quality of the space frame and bolt ball processing, all hollow steel ball joints and steel pipe rods are processed centrally in the factory. The steel ball is made of tire film, and the raw material is No. 45 steel. Using lathe cutting, machining tolerance is: diameter deviation ±1mm, ball ellipticity deviation <1mm. The allowable deviation of the length of the steel pipe is ±1mm, the end face of the steel pipe must be perpendicular to the axis of the rod, the allowable deviation is 0.5%R(R is the radius of the steel pipe), the maximum bending of the steel pipe must not be greater than 1/1000 rod length. 2. Installation of steel space frame Based on and guided by the theory of computer simulation, a detailed assembling scheme is made. According to the characteristics of the engineering structure and the layout of the construction site, scaffolding work platform is set up on the ground,

  Because most of the space frame   engineering uses steel structure materials, due to the influence of paint and natural environment, rust corrosion is very likely. The following explains how to do anti-corrosion measures in the construction of large-scale space frame   projects. First, the causes of corrosion affecting large-scale space frame   projects The first is the coating aging problem of the space frame   engineering, no matter what kind of material basically has the characteristics of aging, and this anti-corrosion coating is no exception, and the aging of this coating makes the failure of the anti-corrosion coating of the steel structure, and then makes the rust affect the life. In addition, a natural environmental factor around the space frame   project, if the air around the steel structure plant is relatively humid, then it will inevitably make the steel structure gradually rust under the erosion of water and air. In addition, if the pollution in the surrounding environm

 In a sense, steel structure can also be divided into two categories, one is light steel structure, the other is heavy steel structure. And they come from many sources, but how exactly do they differ in detail and architectural use? Come here. I'll show you. First, light steel, for steel structure, light steel is not strictly defined, because its main building structure can be said to be composed of a combination of a variety of structures, such as cold-formed thin-wall steel, hot-rolled thin-wall steel, welded and high-frequency welded cold-rolled thin-wall steel structure and so on. The second is heavy steel, the definition of Pusteel is also the same, there is no unified standard to measure the difference, can only say that many experienced designers or projects are not clear, but from some data reference can be seen that the difference is very big, such as in the steel structure of the plant, if the weight of more than 25 tons, then it is heavy steel. In addition, in the use a

 "A new building system can open up the industry line between construction, metallurgy, machinery and equipment manufacturing, new building materials and disaster prevention and reduction industries, become a national strategic resource reserve, and integrate innovation into a strategic emerging industry." Steel structure houses are conducive to economic transformation and upgrading and sustainable development, and need to accelerate cultivation and development." This is a few years ago, the industry is generally optimistic about the steel structure building system. Steel structure residential general system for residential use, with unique advantages, including: first, light weight. Steel structure housing can reduce the building weight of about 30%-25%, which is conducive to the construction of high-rise buildings, especially in places with low geological carrying capacity and high seismic intensity, and its comprehensive economic benefits are better than ordinary res

The steel structure will be subjected to various forms of action (load, uneven settlement of the foundation, temperature, etc.) during use, so the steel should have good mechanical properties (strength, plasticity, toughness) and processing properties (hot and cold processing and welding performance) to ensure the safety and reliability of the structure. There are many kinds of steel, and only a few kinds meet the requirements of steel structure, such as Q235 in carbon steel, l6Mn in low alloy steel, and 20 manganese vanadium steel (20MnV) for high-strength bolts. Performance index 1. Strength The strength index of steel is composed of elastic limit σe, yield limit σy, and tensile limit σu. The design is based on the yield strength of steel. High yield strength can reduce the weight of the structure, save steel, and reduce the cost. Tensile strength σu is the maximum stress that steel can withstand before failure. At this time, the structure loses its performance due to large plastic

 Prefabricated steel frame commercial buildings are ideal for agricultural projects, warehouses and industrial buildings. This is because they are fast and cheap to build. This type of steel structure construction has many advantages. So, read on to find out why steel construction might be the choice for your next construction project. Faster construction time Prefabricated commercial buildings (PEBs) can be completed much more quickly than other construction methods. This is due to their use of high-strength steel and stacked conical cross sections. Steel construction general contractors also utilize computerized processes to ensure standardized and accurate design. The structure of these buildings is clearly laid out in the diagram so that all the different parts can be easily assembled. All components and materials are pre-cut so that they are ready for construction on site. As a result, PEBs can be assembled much faster than other, more traditional modes of construction. Prefabr

 1. High strength, light weight The strength of steel is high, and the elastic modulus is also high. Compared with concrete and wood, the density and strength of steel are relatively low, so under the same stress conditions, the steel structure has the characteristics of small cross-section, light weight, convenient transportation and installation, and is suitable for large-span, high-height and heavy-duty structures. 2. Good toughness, high reliability The steel is suitable for bearing impact and dynamic loads and has excellent seismic performance. Its internal structure is homogeneous and almost isotropic. The actual performance accords with the calculation theory. Therefore, the reliability of the steel structure is higher. 3. High degree of mechanization Steel structural components are easy to manufacture in the factory and assemble on site. The steel structure component factory has high precision, high production efficiency, fast assembly speed and short construction period. Steel

  As we all know, poor corrosion is a fatal shortcoming of bolt ball space frame , so in the design of steel structure, we must pay attention to its drainage effect, and must not cause water dredging. How to do a good job of waterproof engineering is directly related to the service cycle of the steel structure of the space frame , so it is very important to do a good job of roof waterproof. Now in many buildings will be widely used steel structure space frame , because the steel space frame   structure compared with the traditional concrete building has its particularity, because in the steel design and construction of the building will use different building materials for building patchwork and overlap, so that the waterproof technology of steel structure building is mainly based on dredge-oriented, blocking as a supplement. At present, the use effect of waterproof materials for steel structure houses is not very ideal and the life is short, so building selection, drainage organizatio

  The   space frame   structure is an indoor space structure composed of multiple struts connected to each other according to a certain space frame   pattern. It has the advantages of indoor space support, light weight, large bending stiffness and good seismic grade performance. It can be used as the roof truss of sports venues, cinemas, exhibition halls, waiting halls, sports venues infield canopy, hangars, double pillar space frame   structure from production workshops and other engineering buildings. The disadvantage is that the total number of rods deposited on the node is more, and the structure of the installation is more complicated than that of the plan. A truss structure is a floor plan or interior space structure consisting of straight rods, generally with triangular modules. Under the load effect, the key member of the truss structure bears the radial tensile force or working pressure, and then can flexibly use the compressive strength of raw materials. Compared with the sol

Steel has good performance advantages in use, is a new type of modern building materials, in the product application to achieve a change in style, change the traditional concrete buildings, space frame   architecture is a representative of green buildings, with a long time cycle and greater product utilization efficiency, to achieve the efficiency of the use of the building itself in China. It has been recognized by the application unit for the space frame   construction. At present, excellent space frame   architecture is gradually coming into everyone's sight, satisfying the architectural effect. At the same time, under the circumstances of different land use environments, the design and construction of buildings are completed, providing people with environmentally friendly space for living and working. Moreover, it can combine three-dimensional space structure with architectural beauty and reflect different architectural styles. To meet the demand of sustainable development in t

  The rods can be made of a variety of materials, mainly steel pipes or profiles. This structure appeared in Europe before the Second World War, but the real large-scale application came after the war. At that time, the space frame   structure replaced the reinforced concrete structure in many occasions with its factory production, on-site installation, convenient construction, labor saving and other advantages. The vigorous development of the space frame   structure is due to its series of advantages. The first is that the space frame   can play a spatial role, because all the rods can participate in the work and have good mechanical performance, its stiffness and integrity are better than the general plane structure, and can effectively withstand a variety of asymmetric loads, concentrated loads and dynamic loads. The overall force of all the bars in the space frame   also shows its excellent anti-seismic characteristics under earthquake action. Secondly, the production and installat

 All kinds of steel pipe scaffolders set up for the construction of the grid must be prepared special safety construction organization design and special design calculation, in the operation should comply with the relevant provisions. When a mobile scaffold operation platform is set up, the scaffold pole should be welded on the channel steel, and the longitudinal and transverse sweeping poles must be set at 200mm away from the channel steel surface. Scaffolding ramp and rest platform, working layer surrounding protection and foot and hand board laying shall comply with relevant regulations. Mobile scaffolding must comply with the provisions of special safety construction organization design when towing. Each time the scaffold is dragged, there should be special command, special observation, first try to drag 1 ~ 2m, check the deformation of the shelf, and confirm that there is no deformation before it can be formally dragged. After towing and positioning, the deformation and idleness

Today, steel structure plant is widely used, mainly due to its own many advantages. The steel structure plant construction speed is faster, the appearance is beautiful, the premise is to prepare the construction guarantee position in advance. With the continuous improvement of the company's production and manufacturing and warehousing and logistics land area requirements, the reasonable layout of space layout regulations are getting higher and higher. Therefore, the traditional construction method has been unable to consider the current area, but gradually eliminated. The following small series will explain the construction parts and advantages of steel structure plants in detail. Analysis of advantages of steel structure plant. The cross-sectional area of the steel structure plant is small, and the reasonable layout provisions of different indoor Spaces can be considered. The vertical pole area is small, and the indoor applicable space area is also expanded. Due to the characteri

  There are two main forms of welding in the processing technology of space frame   accessories, one is spray welding; One is spraying. The ultimate purpose of these two technologies is to make the space frame   accessories have good impact resistance, wear resistance, corrosion resistance, and mirror-like appearance. Have you ever known the difference between these two techniques? Under what circumstances is the spray welding effect better? Next, let's learn the following specific content together! Spraying materials are different, spray welding requires the use of self-fluxing alloy powder, and spraying is not high requirements for the self-fluxing of powder, and not necessarily self-fluxing alloy powder, a variety of self-fluxing alloy powder can be used for spray welding and can be used for spraying, but spraying powder does not have self-fluxing can only be used for spraying and not for spray welding process. In the process of spraying and spraying welding, the preheating temp

 The quality control of the space frame processing process is mainly reflected in the following aspects: 1. Special technical disclosure. Before each type of component grid processing, the project must be disclosed: grid processing quantity, completion time and requirements, acceptance standards, problems to be paid attention to in construction, technical assurance measures, protection measures for finished products and semi-finished products, possible accidents and measures, welding by material and welding process parameters, welding sequence, etc. 2. Measurement control. Measurement control runs through the whole process of grid processing, from the inspection of material size, cutting size inspection, component group deviation, component welding Angle size, correction deviation control, pre-assembly size, drilling aperture, paint film thickness and so on. In order to ensure the accuracy of measuring instruments, the use, storage, maintenance and inspection of measuring instruments

 (2) Connection and installation between beams and columns The middle column of multi-span portal steel structure needs to be designed according to the swing column, but in the actual construction process, the inclined beam and the middle column are welded tightly, which leads to the actual construction is not in line with the design drawings, and it is easy to cause construction accidents. Therefore, the construction personnel need to carry out construction in strict accordance with the design drawings. When the flange plate is welded on the thickened or widened connection plate, it is not made into an excessively inclined style according to the construction requirements. For welded joints, if the thickness or width of the member is not the same, and the difference distance on the side of the same direction reaches more than 4 mm, it should be made from the same side of the width or thickness of the tilt Angle is not greater than 1:4. Because the cutting of the construction personnel

 1 Specific advantages of light steel structure Light steel structure has the following advantages: First, shock resistance. At present, the triangular frame system made of cold-formed steel is the product used by most building materials in China, the principle of which is to use the stability characteristics of the triangular. Then, in order to make the gypsum board of the house and the building structure of the house itself more stable, the construction personnel can make the house form a strong structural system by using steel building materials. Compared with the traditional building structure, it has a more powerful seismic function and load resistance, and is mostly suitable for disaster-prone areas, fully reflecting the universality of light steel structure. Second, corrosion resistance. The construction of light steel structure is all made of cold-formed steel, which is made of galvanized sheet material with strong corrosion resistance, which can avoid the corrosion of steel i

 Steel structure plant mainly refers to the main load-bearing components are composed of steel. Including steel columns, steel beams, steel structure foundation, steel roof truss (of course, the span of the factory is relatively large, basically now are steel structure roof truss), steel roof, pay attention to the wall of steel structure can also be maintained by brick wall. Due to the increase of China's steel production, many have begun to use steel structure plants, which can also be divided into light and heavy steel structure plants. Industrial and civil construction facilities made of steel are called steel structures. 1. Heat preservation and cooling: Steel structure plant insulation film can isolate most of the solar radiation and conduction heat, reduce the indoor greenhouse effect. Then the temperature of the plant is greatly reduced to improve the environment of the steel structure plant. The commonly used methods now have the following two choices: the steel structure