How to reduce the amount of steel in steel structure?

The  modern steel structure  platform has various forms and functions. Small but complete. The biggest feature of its structure is the fully assembled structure, which is flexible in design. It can be designed and manufactured according to the actual situation of different sites, which meets the requirements of the site, the development of useful functions, and the requirements of logistics technology. Widely used in  modern storage . Composition and classification of the platform structure 1. Composition: usually platform structure, usually supported by a platform structure is composed of primary and secondary beams, columns, and ladder primary and secondary beams, columns, support columns, and ladders, railings between the poles, etc. Components. 2. Classification: According to different technical requirements, it can be divided into indoor and indoor platforms, static and dynamic load platforms, production auxiliary platforms, and medium and heavy operating systems. Ac...

1. The standard value of the permanent load of the   steel structure   canopy is 0.8kN/㎡ (excluding the weight of the stressed member), and the standard value of the additional permanent load of the canopy is 0.3kN/㎡ when calculating the wind suction. 2. The standard value of the live load of steel frame canopy is 0.5kN/㎡.     3. Snow load of metal building canopy: the basic snow pressure is 0.4kN/㎡, 0.7kN/㎡ (standard value of snow load: Sk=μtSo,μt=2). In areas where extremely heavy snow loads may occur, the designer should Select after review.     4. Wind load: basic wind pressure: 0.55kN/㎡, 0.75kN/㎡; the standard value of wind load is calculated according to the enclosure structure. In areas where extreme wind loads are likely to occur, it should be selected by the designer after review. Standard values ​​of wind load: wk=βgzμsμzWo, βgz=1.0, μs (negative wind)=-2.0, μs (positive wind)=1.0, μz=1.14. 5. The standard value of several loads for constructio...

The calculation formula for  steel structure  stairs is 2h b = 600 plus or minus 20. This formula is based on ergonomic principles. Usually in adults, the step length is about 750. Through the influence of the height on the stairs, the step length becomes shorter and the height becomes higher. Higher, shorter step length. Therefore, the height influence factor can be multiplied by 2. Generally there are the following sizes: 300X150, 280X160, 260X170, 250X175, etc. The step height of the public stairs is 160-170mm. The ordinary cement base of the stairs in the house is at such a standard, and 160mm is a more comfortable height. The calculation rules for steel structure stairs of  steel structure building  are as follows: 1. The horizontal projection area of ​​the stairs: the cast-in-place concrete stairs are calculated based on the horizontal projection area according to the design diagram size. The stairwell with a width less than 500mm is not deducted, and the part ...

Should the foundation of a  multi-story steel structure factory  be built? This is a very professional question, and only the editor can help you find a professional answer. For the foundation of the same structural unit, part of the natural foundation and part of the artificial foundation should not be adopted. It is also not advisable to adopt two or more types of soil layers with large differences in properties as the supporting layer. When the end approaches or partially enters the inclined top surface of the underlying soil layer, it is advisable to deepen the foundation or increase the pile length so that the bottom of the foundation of the pile ends are all in the same underlying house to avoid possible uneven settlement. The  steel structure building  site cannot avoid the marginal sections of rivers, lakes, and old rivers that may cause slippage or ground cracks during earthquakes, and targeted foundation stabilization measures should be taken and the founda...

What problems should be paid attention to during gas cutting and demolition of  steel structural components ? A.  Process points that should be paid attention to during gas cutting of  steel structure components : 1. Before gas cutting, it is necessary to introspect to confirm that all the equipment and tools of the gas cutting system are operating normally and to ensure safety; 2. Before gas cutting, remove the dirt, oil, rust and other sundries on the surface of the steel, and leave a certain space on it to facilitate the blowing of slag; 3. When cutting, the shape of the oxygen jet should be adjusted to make it reach and maintain the clearness of the round, long wind line and high shooting power; 4. When gas cutting, tempering must be avoided; 5. In order to avoid gas cutting deformation, the operation should be stopped from the short side; the small pieces are cut first, and the big pieces are cut later; the complicated ones are cut first, and the complicated ones lat...

General cranes are widely used in indoor and outdoor  steel warehouses ,  steel workshops , docks, and open storage yards. The crane is mainly composed of cart operating mechanism, trolley operating mechanism, hoisting mechanism, and electrical equipment. The two ends of the frame are supported on the elevated track above the workshop or open-air cargo yard through the running device and run longitudinally along the track. And the crane trolley runs horizontally along the trolley track on the main beam frame. Technology engineers need to take features of the crane beam into consideration during the steel structure designing. Crane Beam Design Generally, crane beams are simply supported (simple structure, convenient construction, insensitive to support settlement) with common forms of  steel beams (1), combined I-beams(2), box beams(3), crane truss(4), etc. Crane Beam  Load Permanent load (vertical). The dynamic load has horizontal and horizontal direct...

Do you know what are the seismic layout requirements of steel structures? In this issue,  steel structure manufacturers  will introduce to you: 1. The floor should adopt a profiled steel plate cast-in-place reinforced concrete composite floor or non-combined floor. 2. The arrangement of the supporting frames in both directions should be basically symmetrical, and the aspect ratio of the floor between the supporting frames should not be greater than 3; Steel structure seismic engineering 3. When a basement is installed in a steel structure house, the frame column should extend to at least the first floor underground; 4. When the steel structure with more than 12 floors adopts an eccentric support frame, the top layer can adopt central support; 5. For the steel frame-tube structure with more than 12 stories, if necessary, a reinforcement layer composed of outriggers or outriggers outside the tube and surrounding frame can be provided; We all know tha...

Roofing construction is very important for houses. So, what is the process of using  steel structure  for roofing construction? Should I pay attention to anything? Let us study together. Steel structure manufacturers  analyze the steps of  steel structure roof  construction: ①When laying glass wool roll felt, the veneer faces the indoor side and is perpendicular to the purlin. Leave an extra 20 cm roll felt at one eave, and fix it on the outermost purlin with a special clamp or double-sided tape; ②When unwinding, ensure that it is aligned and tensioned. Lay the glass wool roll felt on the other side of the eaves. Also, leave an extra 20 cm roll felt, and fix it on the outermost purlin with a special clamp or double-sided tape; ③The two rolls of cotton are connected together by using a stapler on the veneer flash; ④ Install the roof color steel plate, remove the fixtures at the eaves on both sides, and use the reserved 20 cm veneer to close the glass w...

What are the methods to prevent the deformation of  steel structure components ? Do you know? Come and listen to the explanation of  steel structure manufacturer   Qingdao Yili Steel Structure. 1. When manufacturing  structural steel  components, the processing technology should be determined in accordance with the actual supply of materials, processing technology level, and equipment conditions to reduce the stress and deformation of the components. 1) Minimize the types of steel and reduce the number of component types to prevent component stress and deformation. 2) The size or aperture size of the symmetrical parts of  steel structure manufacturers  should be unified as much as possible to facilitate machining and facilitate interchangeability during assembly. 3) Arrange the welds reasonably to avoid the distance between the welds being too close. When the length of the material is greater than the length of the part, try to reduce or not do th...

The  steel structure workshop  sometimes leaks. To solve this problem, we must first figure out the cause of the leak. The following editors analyze the causes of water leakage from the  steel structure factory 's house surface from several aspects. Design reasons 1. The roof drainage system does not set overflow measures according to the specifications. When the intensity of the rainstorm exceeds the drainage capacity of the rainwater system, it will exceed the lap joints, and even overflow the roof, causing water leakage; 2. There is no additional L-shaped edge trim on the upper part of the outer wall of the wall, causing water leakage inside the gutter; 3. The roof slope design is too small, the roof rain cannot be drained to the gutter in time. Material reason 1. The color board of the enclosure is too thin. After a period of use, the outer board is corroded or deformed by temperature, and the gap between the boards increases, resulting in water leakage; ...

Insulation materials for  steel structures  are classified according to their material properties and are roughly divided into organic materials, inorganic materials, and composite materials. Different insulation materials have different performances and prices. This article will summarize several types of insulation materials for the exterior wall collected by the editor. They are arranged in order according to the insulation material performance, that is, the value of thermal conductivity. And introduce the composition, effect illustration, and application value. A vacuum insulated panel, thermal conductivity 0.008W/（mK） Vacuum insulation board is a kind of high-efficiency insulation board made of the inorganic fiber core material and high gas barrier composite film through vacuum encapsulation technology and covered with special interface mortar. Vacuum insulation panels possess the lowest thermal conductivity among existing thermal ins...

The  steel structure  has become the best building material at present, and  steel structure buildings  can be seen in many places. However, the surface of the steel structure must be protected against corrosion and surface treatment to ensure the quality and safety of the surface of the steel structure. Let's take a look at the anti-corrosion methods and surface treatment of  steel structure manufacturers . Steel structure corrosion protection method 1. Metal protective layer: The metal protective layer is a metal or alloy with cathode or anode protection. The metal protective layer is formed on the surface of the metal to be protected by electroplating, spray plating, chemical plating, hot plating and infiltration plating ( Membrane) to isolate the contact between the metal and the corrosive medium, or use electrochemical protection to protect the metal, thereby preventing corrosion. 2. Chemical protective layer: chemical or electrochemical methods are ...

Steel columns  of  steel structure factory  buildings are generally axial compression members or bending members. Combined with their stress characteristics, the following reinforcement methods should be selected for the columns of steel structure factory buildings. 1.  Steel structure  pillar unloading method When it is necessary to reinforce or replace a new column under the unloading situation, adopt the method of "column replacement for joist". When only the upper column needs to be reinforced, the crane beam bridge can be used to support the roof truss and unload the column. When the lower column needs to be reinforced or the lower column needs to be cut off by process requirements, a permanent joist can be placed under the crane beam to share the load of the upper column on the adjacent column. This method should be taken into account that after the joist is used to replace the lower column, the joist will have a certain deflection, forcing the original...

In the past 30 years, various types of  large-span steel structures  have developed rapidly in developed countries and regions such as the United States, Japan, Europe, and Australia. Their spans and scales have become larger and larger, and the application of new materials and technologies has become more and more extensive. Lots of magnificent and characteristic large-span buildings have become symbolic or iconic cultural landscapes in local. Throughout the design and construction of these  modern large-span steel structures , the main features are presented as follows. A. increasingly diversified and complicated  steel structure The  modern large-span space steel structure  is not limited to a traditional single structural form. New structural forms and various combined structural forms are constantly emerging. Let’s take some famous Chinese buildings as examples, the Water Cube adopts a polyhedral space rigid frame struc...