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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?
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.
What is the roof system of Residential steel building?
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.
1. The positioning axis and supporting surface elevation of the foundation are out of tolerance:
The positioning axis of the foundation and the elevation of the supporting steel cylinder exceed the allowable deviation.
The reasons are as follows:
There are errors and deviations in foundation survey control network, foundation survey setting out and elevation finding.
The foundation formwork is not firmly set up, the pouring concrete blanking is too high, and the concrete is vibrated and impacted, which makes the formwork displacement and causes the datum line deviation.
Or the use of steel ruler, theodolite, level without calibration, there are errors.
Or construction wrong drawings, axis wrong, without strict inspection.
Or if the foundation bearing surface is not plastered and leveled twice, the concrete will shrink and sink.
Or the embedded steel plate (or support) is not fixed.
Because the foundation positioning axis and bearing surface are out of tolerance, the column installation axis and bearing elevation will be out of tolerance, which will affect the quality of the whole structural steel construction installation project.
Avoiding measures:
(1) The accuracy of basic survey control network, instruments and measuring tools used for basic survey setting out and leveling shall be accurate. Before use, they must be checked or verified by the measurement department. If problems are found, they shall be adjusted in time to prevent errors or accumulated errors, resulting in axis and elevation exceeding the allowable deviation.
(2) The foundation formwork for steelstructure construction must be firmly supported with sufficient strength and rigidity. When pouring concrete, cutting and vibrating, it is necessary to prevent from striking the formwork and causing displacement. In the process of concrete pouring, the positioning axis and elevation shall be checked regularly with measuring tools or suspension lines. If any deviation is found, the pouring and vibration shall be stopped, and the work shall be carried out after reinforcement and adjustment. Before the final setting of concrete, the surface of foundation concrete shall be plastered and leveled twice. For the embedded steel plate or bearing, the elevation and levelness shall be aligned twice, and the concrete at the bottom shall be dense. The steel plate or support of foundation support column shall be provided with necessary fixing devices to ensure correct position and elevation.
(3) When the elevation and levelness of the steel plate or support on the vertical and horizontal axis of the foundation and column bearing surface are out of tolerance, measures shall be taken according to the degree of deviation. When the out of tolerance is not serious, it can be solved by shifting the column base, reaming and packing the base plate. If the deviation is serious and cannot be adjusted, it should be studied with relevant departments to work out a feasible correction scheme before treatment.
2. Foundation anchor bolt thread damage:
The foundation anchor bolt thread is damaged, and the nut cannot be screwed and tightened during the column installation.
The causes of bolt thread damage are as follows:
Anchor bolts are impacted or improperly kept during transportation, loading and unpacking, resulting in serious thread corrosion.
Or the bolts were not protected after burying and were damaged by outside.
Or the bolt is used as electric welding zero line on site, and the thread is damaged due to arc burn.
Or the bolt is used as the binding point of the pulling force of the traction rope.
Due to the damage of bolt thread, it is impossible to screw in nuts to fasten steel columns and other components, which affects the transmission and stability of structural force.
Avoiding measures:
(1) When the anchor bolts are transported, packed and unpacked, the thread protection shall be strengthened. After being smeared with industrial vaseline oil, they shall be wrapped and bound with plastic film to prevent thread damage and corrosion. And should be stored separately, should not be mixed with other parts and components, so as to avoid mutual impact damage thread.
(2) After the anchor bolt is embedded, it shall not be used as the fulcrum of bending processing, the neutral line of electric welding machine, or the binding point of traction force. When lifting components, proper operation shall be carried out to prevent the thread from being damaged by horizontal lateral impact force.
(3) The screw thread of the bolt has been damaged, and the following treatment methods can be adopted: when the damaged length of the screw thread does not exceed its effective length, the steel file can be used to trim the screw thread, so as to smoothly screw in the nut. When the length of thread damage of local foot bolt exceeds the specified effective length, the length of original thread section can be cut by gas cutting; Then, with the same material and specification as the original bolt, one end of the bolt is processed into thread, and the butt end section is made into 30º-- 45º. After butt welding with the lower end of the groove, the corresponding diameter specification and length of the steel casing sleeve into the joint, welding reinforcement. After casing reinforcement for steel work in construction, the diameter of the bolt will be larger than that of the base plate, which can be solved by appropriately enlarging the diameter of the base plate.
3. The setting of mortar base plate of column base does not meet the requirements:
The mortar base plate of column base is set randomly, and the elevation, levelness and position do not meet the design and specification requirements.
The reasons are as follows:
The surface of the foundation is not treated and leveled, so that the base plate can not bear the force smoothly, and the surface is uneven and uneven;
The base plate is not reasonably arranged according to the stress requirements, so that the base, base plate and foundation can not bear uniform pressure, so that the settlement of base slurry is uneven, and the elevation and levelness can not meet the requirements.
If the setting of open base plate does not meet the requirements, it can not transfer the load evenly, which will reduce the mechanical performance of the column and affect the stability of the superstructure.
Avoiding measures:
(1) In order to make the base plate group transmit the force to the foundation smoothly, the base plate should be closely combined with the base slurry on the foundation surface. The uneven foundation surface shall be chiseled and leveled.
(2) The location and distribution of the base plate should be correct. Generally, according to the stress area of the steel column base plate, the base plate, the base plate and the foundation should be arranged in the center of the steel plate and the stress concentration position on both sides or near the two sides of the anchor bolt, so that the base plate, the base plate and the foundation can fully bear the pressure load, and bear the force uniformly together to avoid partial bias Concentrated stress or deformation of the base plate occurs when the anchor bolts are tightened.
(3) The area of the base plate directly bearing the load should meet the needs of the stress, which should be determined by calculation, and the area should not be too large or too small. Too large will cause waste, too small will cause local concentrated overload of foundation and affect the overall and uniform stress of foundation. The thickness of the base plate is generally within the range of 4 ~ 25 mm, each group is no more than 3 pieces. The base plate has a 10 ~ 12 mm thick steel plate, the length of the base plate is 100 ~ 300 mm, and the width is 50 ~ 120 mm. When setting the mortar, use non shrinkage cement mortar with strength not lower than 30MPa. As the steel column is mainly installed with cushion plate to adjust the elevation and levelness, the elevation and levelness shall be found when grouting, and the allowable deviation shall comply with the specification, and the supervision shall be strengthened. Before the base plate is grouted, the rust, oil stain and burr on the surface of the base plate shall be cleaned, so that the base plate can be firmly combined with the concrete when grouted and grouted; The length of the base plate group exposed to the outside of the base plate edge is about 10 ~ 20 mm.
4. Before the installation of steel column, the foundation is directly installed without inspection:
Before the installation of steel column, the axis and elevation of the foundation, the position and elevation of the anchor bolt and the concrete quality of the foundation are not checked in advance, so the installation is carried out directly. In this way, there may be out of tolerance without repair, which will cause structural installation difficulties, increase the steel column installation stress and affect the installation accuracy, and even cause quality hazards.
Avoiding measures:
Before the installation of steel column, the positioning control line, foundation axis, elevation, anchor bolt position, elevation and concrete quality of foundation shall be pre checked. If the deviation is found, measures shall be taken to correct and adjust to the allowable deviation range of the specification. For elevation inspection, the measured data shall be compared with the pre inspection data of steel column size and elevation, and the error of the two shall be eliminated when the support base slurry pad or anchor bolt nut is adjusted. The allowable deviation of foundation support surface, anchor bolt position and base slurry pad shall meet the requirements of the specification. The quality of foundation concrete shall be dealt with in accordance with relevant regulations.
5. Don't check the dimension of steel members, deal with deformation and quality defects before installation
Before the installation of the structure, the external dimensions of the steel members are not checked, and the deformation and quality defects of the members are handled.
Although the steel components have passed the quality inspection before they are processed in the factory, they may fail to be inspected, or new deformation and damage may occur in the transportation and stacking of the components. If the review is not carried out before the installation, these problems can not be dealt with in time before the installation, which will affect the installation quality of the steel structure and cause installation difficulties or permanent quality defects.
Avoiding measures:
Before the installation of steel members, the steel members shall be carefully checked in advance:
It includes checking the model and quantity of the component, the overall dimension of the component, the relevant dimensions between the supporting surfaces and the installation holes, and marking the datum line of the axis of the component. Check whether the component is deformed, and correct and repair the deformation error if there is any.
Whether the connecting plate, splint and other accessories of the component are complete and whether the position and size are accurate. Inspect whether the surface quality of the welding area of the component and the friction surface of the high-strength bolt connection meet the requirements and whether it is polluted.
Whether the member nodes are complete and whether the center of gravity of main components is marked.
Whether the surface of the component is polluted, whether the paint falls off, etc.
Pre inspection records of components shall be made; For the components with deformation and defects exceeding the allowable deviation, they shall be corrected and repaired on the ground before installation, and can be installed after they are qualified.
6. The perpendicularity of steel column installation is out of tolerance:
The verticality deviation of steel column exceeds the allowable value in design or code
When the steel column is manufactured, the deformation control measures are not taken or the bending deformation is not straightened.
Or the length of the column is large, the rigidity is poor, and the elastic or plastic deformation occurs under the action of external force.
Or due to the unreasonable hoisting technology and procedure, the roof panel is bent and deformed under the action of temperature, wind and external force.
Or there is deviation in the span size of the roof truss, the external force is used to force the connection during the installation, resulting in the over deviation of the verticality of the steel column.
This will lead to the deflection of the steel column and affect the bearing capacity and stability.
Avoiding measures:
(1) Anti deformation measures shall be taken for assembly and welding of steel column, and the deformation during fabrication shall be corrected in time. When transporting and stacking steel columns, the supporting points should be appropriate to prevent bending deformation under the action of self weight. The out of plane stiffness of long column is poor, so the lifting point should be selected at 2 / 3 of the total length of the column to prevent deformation. If the span size of steel roof truss exceeds the deviation, it should be corrected before installation to prevent forced connection and bending deformation of column body.
(2) When the steel column is hoisted to the foundation plane in place, the vertical and horizontal axis above the column base plate should be aligned with the foundation line, so as to prevent the deviation of span size, which will lead to the horizontal tension or thrust when the column head is installed and connected with the roof truss, so as to make the column body bending and deformation, and carry out appropriate control.
(3) When the roof slab is hoisted after the connection and installation of the steel column and the tail-stock, it should be carried out symmetrically and synchronously from the edge of the two slopes in the center of the top chord to the middle, so as to prevent the bending deformation of the steel column caused by the lateral concentrated pressure generated by the one slope. Without the permission of the design, the steel column and other connected components shall not be used for horizontal dragging or vertical hoisting of heavy components and equipment, and the column bending deformation or damage to the connecting structure shall be prevented.
(4) If the bending steel column is elastic deformation, it can be restored to its original state after the external pressure is removed; If it is plastic deformation, it can be corrected by adding temporary support above or at the top of the bending part of the steel column before correction, so as to reduce the load-bearing gravity, and then fixing one side reaction frame at the bending part, and using jack for correction. If the rigidity of the steel column is large, it can be corrected by heating the bending convex surface with oxyacetylene flame, and then applying jacking force.
7. Steel column installation height is out of tolerance：
Height dimension or relative position of steel column after installation(±)The elevation dimension is out of tolerance, which makes the difference between the total height of each column and the height deviation of the bracket.
The reasons are as follows
Foundation elevation is incorrect or deviation occurs.
The length and dimension of steel column during the production stage are out of tolerance.
Or when the foundation elevation is adjusted and treated during installation, it is not combined with the actual length (height) of steel column, which will cause the positive or negative difference of the height dimension or elevation dimension of the steel column after installation.
Because of the over tolerance, it is difficult to install and adjust the components connected with it, which makes it difficult to correct and takes time.
Avoiding measures:
(1) During the foundation construction, the elevation size should be strictly controlled to ensure the accuracy of elevation. The elevation dimension of the upper surface of the foundation shall be adjusted according to the actual length of the steel column or the elevation dimension of the bracket supporting surface, so as to make it consistent with the height and elevation dimension of the steel column after installation.
(2) During the manufacturing process of steel column, the length and size (including the total length and the length of each position specified in the design, the length and size within the allowable positive and negative deviation range, and the positive excess value not allowed) and the correct size of the total length and bracket of the steel column without contact point shall be strictly controlled. The latter can be adopted to weld the column body first, and the column base plate and column head plate shall not be welded temporarily, In case of out of tolerance, adjust before welding the base plate or upper column head plate of the column, and finally weld the base plate and column head plate of the column.
Industrial steel building mainly refers to that the main load-bearing components are composed of steel. Including steel column, steel beam, steel structure foundation, steel roof truss (of course, the span of the plant is relatively large, and they are basically steel structure roof truss now), steel roof. Note that the wall of steel structure can also be maintained by brick wall.
What should be taken into account in the day-to-day maintenance of industrial steel buildings?
What are the arrangements for the planning of industrial steel buildings?
What should be taken into account when selecting industrial steel building?
After the installation of our industrial steel building, the owner is not allowed to change its structure privately, not to remove screws and other parts, and not to increase or reduce the partition wall. If you need to change a part, you need to negotiate with the manufacturer. It is up to the manufacturer to decide whether it can be changed. After approximately three years of use, the steel structure must be maintained with colour to give the building beauty and safety. industrial steel buildings are connected by steel construction components, so electrical devices such as wires should be insulated by cable channels in order to avoid accidents involving electric shocks.
The maintenance of industrial steel buildings is closely linked to the durability of the steel structure. That is why the industry pays enough attention to it. If you have problems with maintenance and maintenance, you should contact a professional steel construction manufacturer for help.
What are the arrangements for the planning of industrial steel buildings?
1. Insurance: Avoid rain water from the outside entering the metal roof of the industrial steel building. Rainwater enters the metal roof mainly through overlapping joints or knots. In order to achieve the function of the centrifuge, it is necessary to use a sealing disc at the screw connection and to make a concealed fixation. Use sealants or welds on the top of the plate. Best use a long board to remove the overlap. Close water-tight treatment for bleeding.
2. Fire protection: The metal material does not burn in the event of fire and the flame does not penetrate the metal roof plate.
3. Wind pressure resistance: industrial steel building can withstand the maximum local wind pressure and the metal roof plate is not removed by negative wind pressure. The wind resistance depends on the strength of the metal roof plate and the fixing seat and the density of the fixing seat.
Sound protection: industrial steel building prevents sound transmission from the outside to the inside or from the inside to the outside. Fill the metal sheet with sound insulation material (mostly insulated cotton) and the sound insulation effect is expressed by the sound intensity difference on both sides of the metal sheet. The sound insulation effect depends on the density and thickness of the sound insulating agent. Note that sound insulating agents have different locking effects on sounds of different frequencies.
After reading these words, do you also want to order an industrial steel building? If necessary, you can contact Qingdao Xinguangzheng Steel Structure Co., Ltd., which is an advanced industrial steel manufacturer.
Residential steel building has entered a new stage of development. Relevant specifications and design standards have been issued and implemented one after another. In addition, the supply of steel is sufficient. A batch of Residential steel building trial construction experience and scientific and technological achievements continue to be presented. The development of Residential steel building Have a good material and technical foundation
How will Residential steel building develop in the future?
What should be considered before building Residential steel building?
What are the issues that need to be considered when constructing Residential steel building?
Due to the flexibility of Residential steel building design, in addition to high-rise buildings, low- and multi-storey residential buildings also have good adaptability for the residential system. At the same time, the development of villas in low- and multi-storey houses can use light steel structures such as cold-formed C-shaped steel or Small hot-rolled steel forms a keel structure system; high-rise buildings can use hot-rolled H-shaped, welded H-shaped, welded box-shaped, cold-formed thin-walled square steel pipe filled with concrete, round steel pipe filled with concrete, etc. to form a steel frame body and steel support frame system , Steel frame concrete shear wall system, etc.; while building villas and rural buildings, wall column systems can be used.
1. The cooperation between building equipment and Residential steel building is the first problem encountered by residents. Therefore, how to use advanced technology to develop various equipment suitable for steel structure residence is a problem we must solve.
2. The cost of Residential steel building is the most concerned issue of real estate developers. Steel structure residence should be located in medium and high-grade residence. Steel structure residence building is a systematic project. Management and coordination should be strengthened from the links of design, manufacturing, transportation, installation, maintenance and management, so as to reduce costs and improve comprehensive economic benefits.
1. Selection and development of exterior wall panels for Residential steel building is one of the key issues in the promotion of steel structure residential buildings. In addition to meeting the technical requirements of exterior wallboards, it is also necessary to make wallboard raw materials suitable for local conditions, work-oriented production, transportation, installation and connection.
2. The structure of Residential steel building should be safe and reasonable, the node structure should be convenient and reliable, and create conditions for component production, transportation and hoisting.
3. The seismic performance of Residential steel building has a lot to do with the regularity of structural layout. The structure layout is irregular, it is easy to be damaged during an earthquake, and in addition to the elastic design, the elasto-plastic layer displacement check calculation is also required. Therefore, we should try our best to make the structural layout meet the regularity requirements.
Overall, the important role of Residential steel building in our daily lives is perceived by more and more people. Qingdao Xinguangzheng Steel Structure Co., Ltd. strives to offer high quality Residential steel building at reasonable prices, efficient production times and the most professional customer 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?
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.
Introduction of Algerian layer house building with equipment
Project equipment system：4 rows of 5-layer cage nets
Project building feeding quantity：34800 layers
Project detail: On the basis of the customer's civil chicken house, Xinguang is transformed into a modern chicken house. In terms of animal husbandry equipment and plant, the company has a professional technical research and development team, each kind of equipment designed is more suitable for animal needs, so that animals can enjoy five-star treatment. The mode of "intelligent + intelligent equipment" that we have constructed makes farming easy and simple.
IntroductionofMaldivesPrefabricated Steel Structure Construction Mall Building Hardware Store:
Project Area: 3323 ㎡
Project Date: 2017
Project Detail: Six-story steel structures, 100mm fiberglass wool sandwich panel for roof and Glass Curtain +Aluminum Wall Cladding for outer wall and 75mm rock wall sandwich panel as inter wall. The fireproof grade is grade 2, and the fireproof coating is indoor thin fireproof coating.
Effect pictureofMaldivesPrefabricated Steel Structure Construction Mall Building Hardware Store :
Company information
Qingdao Xinguangzhegn steel structure group company has 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.
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7/6/2022· Jun 7, 2022 In 2021, the steel price in the Indian city of Chennai reached 59.78 Indian rupees per kilogram. Steel in Pune was less expensive at 58.08 rupees per kilogram. It was...
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