Product Description
Analysis of the advantages of steel structure engineering construction technology
1,Promote the development of energy saving in the construction industry
The application of steel structure construction technology in construction projects will help promote the green development of the construction industry and meet the needs of sustainable development.Facing the challenges brought by sustainable development, the construction industry bears the brunt, and energy saving and environmental protection become the theme.Under the guidance of this concept, building construction needs to choose more energy-saving and environmentally friendly materials.Steel structure construction technology is the main product of the development of construction industrialization.It can meet the construction quality and safety needs of construction projects, extend the durability and stability of buildings, and realize the great exploitation of resources.
2,Ensure the structural stability of buildings
The application of steel structure engineering construction technology can withstand the weight of cement concrete and has a strong bearing capacity.It can save material consumption and occupied space, reduce the cross-sectional area of the building, and avoid the total amount of steel structure exceeding the total amount of concrete.Even in the case of seismic disasters, it can effectively reduce the interaction of building materials, ensure the stability of the building structure, and improve the safety of the building.
1. High strength and lightweight characteristics:
Steel has high strength, and under the same load, the weight of steel power stations is lighter than traditional concrete structures. This feature greatly reduces the bearing pressure of the foundation, reduces the cost of infrastructure construction and reduces the difficulty of construction. For example, when building power stations in some areas with poor geological conditions, the lightweight advantages of steel structures can effectively avoid complex foundation treatment projects. At the same time, the light structural weight also facilitates the transportation and installation of components and improves construction efficiency.
2. Good toughness and ductility:
In the face of vibration and impact caused by natural disasters such as earthquakes and strong winds or sudden equipment failures, good toughness and ductility of steel can play a key role. It allows the structure to absorb and dissipate energy through its own deformation when subjected to huge external forces, avoid brittle fractures, and ensure the structural integrity of the power station under extreme circumstances, thereby ensuring the safety of power generation equipment and reducing power outages caused by structural damage. Accidents maintain the stability of power supply.
3. Excellent spatial performance:
The steel structure frame system can easily realize long-span spatial layout, meeting the installation and layout needs of various large-scale equipment in the power station. For example, large equipment such as steam turbines and generators usually require spacious space, and steel structures can provide large space without columns or a few columns, making it convenient for equipment installation, debugging and post-maintenance. Moreover, the flexible design of the steel structure allows the internal space to be easily transformed based on equipment updates and process adjustments, enhancing the adaptability and sustainable development capabilities of the power station.
4. Excellent anti-corrosion performance:
The operating environment of the power station is complex, and there may be corrosive factors such as high humidity and chemical gases. After multi-layer anti-corrosion treatment of steel including rust removal, primer coating, intermediate paint and topcoat, a strong protective barrier can be formed to effectively resist erosion by corrosive media, extend the service life of the steel structure, reduce long-term maintenance costs, and ensure long-term stable operation of the power station.
Steel girder assembling is used for larger span truss, light steel structure, section 1, H, mouth type mostly, the connection method has three forms of high-strength bolts, bolt welding combination and welding.Portal steel frame, variable cross-section inclined beam or multi-section, solid web welded I-beam cross-section or light H-section, portal steel frame inclined beam is divided into several units according to the transportation conditions, and the units can be connected with high-strength bolts through the end plates.
For the sake of structural stability, easy calibration and accurate installation, for multi-storey structural floors, the top beams should be fixed first, then the lower beams, and finally the intermediate beams.When the installation of columns and beams in a frame is completed, measure and correct this in time.
Steel structure anti-corrosion materials include primer, intermediate paint, top coat, thinner and curing agent.Commonly used are polyvinyl chloride, chlorinated rubber, epoxy resin, polyurethane, epoxy zinc-rich, etc.; commonly used colors are red Dan, medium gray, etc..
Fireproof coating
Process flow: operation preparation → fireproof coating dosing, mixing → spraying → inspection and acceptance of fireproof coating dosing, mixing: powder coating should be used with the allocation.Spraying: The order of applying the coating is generally first up and then down, first difficult and then easy, first left and then right, in order to keep the thickness of the coating uniform and consistent, no leakage of slurry, no falling shall prevail.
Wall panel installation
Acceptance of installation of color plates and flood panels on the wall of light steel structure of steel structure plant.
Datum line placement leveling flashing board installation wall panel installation
Roof drainage
Organized drainage is generally the rain roof drainage is divided into organized drainage and unorganized drainage (free drainage), Ben Chau clear thick island brother boundary rainwater drain down, the ditch that collects the rainwater is known as the gutter, gutter refers to the roof of the building
The other is the eaves of the horizontal groove below the gutter that eaves gutter, used to receive the roof of the rain, and then by the general can not calculate the floor area, can be based on when led to the ground.Eaves gutter is divided into outer eaves gutter and inner eaves gutter, the
Vegetable dew offerings, precipitation intensity and drainage speed to determine the size of the gutter ten small
In order to let the rainwater can be very fast very smooth flow to the ground drain, generally take the middle of the high two sides of the low row on both sides of the house to leave a downpipe holes, so that it can be connected directly through the pipeline at the same time after the flower
Installation of gutter picks
Gutters are first fastened to purlins, and after completing the roof panel installation, the picks are used to fasten the outside of the gutters to the roof panel, and the self-tapping nails (pull rivets) are sealed with structural adhesive.Stainless steel gutter is fixed with 2.0 galvanized iron sheet folded U-channel; color steel gutter is fixed with 2.0 galvanized iron sheet folded pieces.
Installation and fixing of rainwater hopper
The connection of the rainwater hopper should be fixed to the load-bearing structure of the roof.The connection between the edge of the rainwater hopper and the roof should be tight and leak-free.The diameter of the connection shall not be less than 100mm when the design does not require it.
Steel
Frame |
H section column and beam |
Q345 steel, paint or galvanization |
| |
wind resistant column |
Q345 steel, paint or galvanization |
Secondary bracing |
Roof purlin |
Q235B C/Z section galvanized steel |
| |
Wall purlin |
Q235B C/Z section galvanized steel |
| |
Tie bar |
Q235,φ89*3 round steel pipe |
| |
knee brace |
angle steel,Q235,L50*4 |
| |
roof horizontal bracing |
φ20,Q235B steel bar, paint or galvanized |
| |
column vertical bracing |
φ20,Q235B steel bar, paint or galvanized |
| |
casing pipe |
φ32*2.0,Q235 steel pipe |
| |
Pulling bar |
Φ10 round bar Q235 |
Roof and wall
protecting system |
Wall and roof panel |
corrugated steel sheet/sandwich panel |
| |
gutter |
color steel sheet/galvanized steel/stainless steel |
| |
Trim and flashing |
color steel sheet |
| |
downspout |
PVC |
| |
self tapping screw |
|
Fastener system |
Anchor bolts |
Q235 steel |
| |
High strength bolt |
The Specifications shall be determined according to the design of steel structure. |
| |
Normal bolt |
|
| |
Nuts |
|
| Window and door |
Window |
Aluminium windows |
| |
Door |
According to requirement to choose, can be EPS door, windproof door, high-speed roll-up door, industrial sliding door etc. |
Warehouse
A completed steel structure warehouse is a structure made of steel components that has been fully constructed and is ready for use. These warehouses are typically used for a variety of industrial and commercial purposes including storage, manufacturing, retail, and more. They are often constructed from pre-manufactured steel components that are bolted together on-site, but can also be customized to suit specific needs. Steel structure warehouses are strong, durable, and cost-effective, making them an ideal choice for many businesses.
Workshop
Prefab steel Structure workshop buildings are used for industrial production in which all steel structures are painted and then delivered to the project site for installation. And because the steel structure can be manufactured in the factory and installed on-site, the construction time is significantly reduced. Due to the steel it can dramatically reduce construction waste and is more environmentally friendly. Therefore, it widely used in industrial buildings and civil buildings.
Garage
Steel garage doors are made of heavy-duty, real-gauge steel, which is hot-dip galvanized in zinc to protect against rust. Steel garage doors can have multiple layers that each add strength. The layers often include insulation, cladding, steel and a composite overlay. The composite overlay will determine the look of your door.
Prefab House
The prefabricated house is a kind of environmentally friendly and economical prefabricated house with color steel plate as the skeleton, sandwich panel as the enclosure material, standard module series for space combination, and bolted components for the new concept. It can be assembled and disassembled easily and quickly, realizing the general standardization of temporary buildings, establishing the concept of environmental protection, energy saving, fast and efficient construction, and making temporary houses enter the field of a series of development, integrated production, supporting supply, inventory and multi-turnover stereotyped products.
Shandong Chentai Heavy Steel Construction Group is a comprehensive industrial group that integrates steel structure research and development, design, manufacturing, production, and installation. Since its establishment in 2004, it coversan area of approximately 300000 square meters and produces 200000 tons of steel structures annually. We have over 500 well-trained employees, more than 100 professional design teams, after-sales service teams, and many advanced equipment.
The company has 30 steel structure production lines, specializing in the design, manufacturing, and installation of industrial and civil buildings such as steel structure factories, warehouses, high-rise steel structure buildings, office buildings, exhibition,halls, sports halls, parking garages, prefabricated houses, and agricultural projects. We are committed to providing customers with innovative solutions that not only meet their expectations, but also exceed them.
Corporate Culture:To create real and lasting value for customers, to create rapid development opportunities for employees, and to establish T&T brand.
Core Philosophy:Management philosophy: make the best use of people, make the best use of things, make the best use of money, make the best use of each ability.
Business philosophy: when wealth is scattered, people gather, when wealth is gathered, people scatter; take it in the right way, use it with joy.
Competition Concept: Everyone has one side of the sky above his head, and everyone strives to be a hand.
The main products of Shandong Chentai Heavy Steel Construction Group Co., Ltd. are hidden roof panel, rock wool purification board, truss floor bearing plate, steel structure, rock wool composite board, rock wool sandwich composite board, composite board, polyurethane sandwich composite board, polyurethane rock wool board, purification board and so on.
Construction footprints throughout Shandong, Henan, Hebei, Jiangsu and other places; in Shandong Province in all areas have project construction experience.The company has complete processing equipment, automatic submerged arc welding machine, CO2 gas shielded welding machine, large-scale shot blasting machine, plasma cutting machine and descaling, leveling and calibrating equipment, realizing a one-stop manufacturing and production of discharging, assembling, welding, straightening, shot blasting, painting and inspection, and the construction works are highly evaluated by the construction side and the quality supervision department.
We also have a high-level and experienced steel structure design and development team, and our professional design engineers are fully equipped to undertake the deepening of drawings for various industrial plants and civil buildings.
The main products of our company are hidden roof panel, rock wool purification board, truss floor bearing plate, steel structure, rock wool composite board, rock wool sandwich composite board, composite board, polyurethane sandwich composite board, polyurethane rock wool board, purification board and so on.
CHENTai people adhere to the "quality-oriented, dedicated service; excellence, mutual benefit and win-win" as the business philosophy, we firmly believe that: CHENTai will be more brilliant!
Steel structures are widely used in large-scale factories and arenas due to their light weight and simple construction.The requirements of steel structure are summarized for reference.
The quality control measures of steel structure project are as follows:
1,Strengthen the management of technical personnel
In the construction process of the construction site, the construction personnel occupy the main position in the steel structure operation.In this case, it is necessary to carry out specialized management for the participants of steel structure projects.In the actual management of steel structure project participants, it is found that the actual management work often fails to achieve the expected effect.Firstly, due to the uneven level of professional knowledge and comprehensive quality of the construction personnel involved in steel structure construction, they are not specialized steel structure construction personnel.Secondly, there are many problems in the management of steel structure construction personnel.The employees have loose attitude and poor discipline, which is not easy to be managed in a unified way.Facing this problem, the construction unit should formulate a corresponding management system to restrain them, and should not use conventional management methods.In addition, the pre-service education and training of employees should be strengthened to give full play to the enthusiasm of employees so that they can naturally comply with the rules and regulations.
2, improve the construction control mechanism
In the process of engineering construction, more attention should be paid to the construction of construction quality control mechanism, to ensure the overall quality of engineering construction by perfecting the construction mechanism.First of all, the relevant units should improve the existing construction quality management mechanism, combine the problems that may occur in different construction links, and establish corresponding management and processing mechanisms.Secondly, pay attention to the construction supervision of steel structure.In the process of steel structure construction, many different types of problems may be encountered, and the corresponding processing mechanisms may be different.In order to save the construction time and reduce the construction difficulty, some construction personnel may adopt unreasonable construction methods in the construction process, but these methods cannot meet the construction requirements.Under the supervision of the supervisory unit.All the work can be carried out scientifically and reasonably, the probability of non-standard construction problems is greatly reduced, and the overall quality of the steel structure can be effectively guaranteed.The construction party should establish a sound supervision and management mechanism, encourage the relevant construction personnel to supervise each other, cultivate their sense of crisis and rigorous work attitude, and ensure the rationality of construction.
3,Strengthen construction material management
The quality of materials is directly related to the construction quality and is an important content of construction quality control.In the construction of steel structure project, the cost of steel structure material is very high.Strengthening the construction material management reduces the construction cost while ensuring the subsequent steel structure construction activities are carried out in an orderly manner.This requires comprehensive consideration of construction needs and selection of high quality and inexpensive materials.Specialists conduct in-depth market research, compare and analyze the materials, lay the foundation for more orderly implementation of subsequent steel structure construction activities, and effectively improve the construction quality of steel structure projects.
4,Strengthen the quality control of on-site steel structure components
At the same time, the quality control of on-site steel structure components should be strengthened.First of all, check the samples provided by the permanent representatives and supervisors.If any problem is found, the factory should be notified at one time for correction and to ensure the quality of steel structure components can be transported.On the other hand, the steel structural members need to be inspected by the quality inspector of the supervisory unit upon arrival at the site.
What are the matters to be paid attention to in the fabrication, transportation, installation, fire protection and rust prevention of steel structure components?
(1) Fabrication: The fabrication of steel structure includes many aspects such as release, numbering, cutting, calibration and so on.The anti-slip coefficient of the friction surface after high-strength bolt treatment should meet the design requirements.
Rust removal and painting are carried out after qualified production quality inspection.General installation of welds left 30 ~ 50mm temporary unpainted.
(2) Welding: welders must be qualified by the examination and obtain a certificate of competency, and must be qualified in its examination project and its recognized scope of welding.Welding after welding shall be in the process of welding and parts of the welder to play on the welder's seal.
Welding materials and base materials should be matched, full weld through the first and second level of welds should be used ultrasonic flaws for internal defects, ultrasonic flaws can not make a judgment on the defects, the use of radiation flaw detection.
Construction unit for the first time the steel, welding materials, welding methods, etc., welding process assessment.
(3) Transportation: When transporting steel components, choose the vehicle according to the length and weight of the steel components.The pivot point of the steel member on the vehicle, the length of both ends and the tying method should ensure that the member will not be deformed and the coating will not be damaged.
(4) Installation: The steel structure shall be installed in accordance with the installation procedures to ensure the stability of the structure and not lead to permanent deformation.When installing columns, the positioning axis of each section of column shall be led directly from the ground control axis.After installing the columns, beams, roof frames and other major components of the steel structure in place, they shall be calibrated and fixed immediately.
The friction surface of the members treated by the factory shall be reviewed and tested for anti-slip coefficient before installation and qualified before installation.
(5) Fire prevention and rust prevention:
1) The fireproof performance of steel structure is poor.When the temperature reaches 550ºC, the yield strength of steel drops to about 0.7 of the yield strength at normal temperature, and the structure reaches its strength design value and may be damaged.
Design should be based on the provisions of the relevant defense, so that the building structure can meet the requirements of the corresponding fire.In the time required by the fire prevention standard, the temperature of the steel structure should not exceed the critical temperature to ensure the normal bearing capacity of the structure.
2) The exposed steel structure may be subject to serious corrosion, most commonly rust, by the atmosphere, especially the polluted atmosphere.This necessitates anti-corrosion treatment of the surfaces of the members to ensure the normal use of the steel structure.The method of anti-corrosion treatment is determined by the surface conditions of the members and the requirements of service life.
1. Are you manufacture factory or trading company?
We are manufacture factory, located in Qingdao city, near to Qingdao port. And we have total 7 workshops from steel structure to wall and roof sheet.
2. Can you provide free design?
Yes, we have 10 senior engineer with rich experience. You only need to give me youridea, we will design for you with free.
3. Can you offer competitive prices?
If you have no special requirement for the material, we all use materials from big material manufacture companies. We also can design it according to your requirement. But no matter what kind of quotation mode, offering the reasonable
price is our business objective.
4. How to install? Can you provide engineer to help?
We will provide the detail installations , like the CAD, 3D tekla, etc. Or we will provide the engineers to help according to your requirement.
5. Can I have a visit to your factory before the order?
Why not? Welcome to visit our factory. You can fly to Fujian Quanzhou Airport, then we will pick you up at the airport, hotel booking service is available.
6. ls your price competitive compared with other companies?
A:Our business objectives are to give the best price with same quality and best quality with the same price. We will do everything we can to reduce your cost and guarantee you get the best product that you paid for.
7. Do you accept container loading inspection?
A:You are welcomed to send an inspector, not only for the container loading, but any time during theproduction time.
8. Do you offer designing service for us?
A:Yes, we could design full solution drawings as your requirements.By using Auto CAD,PKPM ,3D3S,Tekla Structures (X steel) etc., we can design complex industrial building like office mansion, super marker, auto dealer shop,shipping mall, 5 stars hotel.
9.What is the delivery time?
A:Delivery time depends on order quantities.In general, the delivery time to nearest seaport in China will be 30 days after receiving deposit.
10.How can you get a quotation for your projects?
A:You can contact us by email, phone, TM, WhatsApp and so on 24*7 and you will get reply within 8 hours. Firstly, please send us your project details and your requirements. Then we will design accordingly, free of charge.Afterwards, please check and confirm whether you like the drawings. If not, we shall get the drawings revised until your confirmation.
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