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. Integration of design and function
In the high-rise steel structure, the structure has become an important factor in the composition of the image, the shape of the structure, components, nodes to a large extent restrict the image of the building, the design and function of the building and the structure can only be integrated, in order to make the building more functional so that the subsequent design links go on to create a high-rise steel structure building that integrates technology and art
2. Can meet the requirements of degree and super span
The internal organization of steel is uniform, close to isotropic uniform body, high strength, good plastic toughness, and the ratio of density and strength is much smaller than that of masonry, concrete, wood, etc., under the same stress, the steel structure has a small weight, so that it can be made into a large span and a high height building structure, and at the same time, the structure can be flexibly arranged
3. Fast construction speed
The components of the steel structure are prefabricated in the factory and installed on the site. The connection methods widely used in installation are bolt welding connection and bolt connection, etc., which greatly speeds up the construction speed and shortens the construction period. At the same time, the material processing and installation of steel structure buildings are integrated, which greatly reduces the construction cost
4. Green energy saving and environmental protection
Selected with other structures often produce a large amount of construction waste, and the use of steel structure steel can be recycled, construction materials can be effectively used, greatly reducing the generation of construction waste. With the enhancement of people's awareness of energy conservation and environmental protection, people pay more attention to green construction and green buildings, and steel structure just conforms to this trend, which is conducive to energy conservation and environmental protection
All construction surveyors must be licensed, if any replacement must be agreed by the technical person in charge of the site is responsible for the transfer to ensure the normal construction of the project.
Familiarize with the drawings (general plan, axial plan, foundation plan, deepen the detailed drawings), to understand the design intent, to fully grasp the axis, dimensions, elevation and site conditions, the relevant dimensions of the design of the paper and the measurement of the setup of the data should be carefully calibrated.
Measurement control point handover and rechecking.Before the steel structure construction unit enters the construction site, it should retest the plane control network and elevation control points of the building construction (coordinates and elevation control points are provided by the owner or the general contractor). According to the requirements of the construction progress plan, the measurement program, the measurement method, the calculation of the measurement data and the drawing of the measurement sketches.
1) Review the drawings carefully when you get them and check whether the location of anchor bolts crosses the reinforcement in the foundation column and whether there are any other construction contradictions.
2)After acceptance of foundation reinforcement binding, install the anchor bolts.
3) Check the hole position and hole diameter of the positioning steel plate one by one after the positioning steel plate is delivered to the site, and do not meet the requirements.
4) Reasonable arrangement of the installation sequence, has entered the site of the anchor bolts to do a good job of protection and storage.
5) In the construction should pay attention to the tying of bearing steel (or foundation steel) after the completion of the installation of anchor bolts.
6) The installation of anchor bolts should be carried out after the completion of the installation of anchor bolts.
7) The installation of anchor bolts should be carried out after the completion of the installation of the anchor bolts.
The elevation point of Shi 0.000 is provided by the owner or the general contractor to provide the elevation control point set at the site, and the elevation control point of the building construction is retested before the construction of the steel structure.
Bolts require uniformity of threads, thread length, leakage size and verticality to meet the design requirements and specification requirements.After the bolts enter the construction site by the constructor for acceptance, check the bolt factory certificate, test report, specification size, quantity, wire buckle length is in line with the design requirements, acceptance of qualified according to the specifications of the yard neatly, and do a good job of marking.
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 crane beams are generally lifted at two points, using lightweight slings or slings with pincers and shears.Crane beam lifting shall be carried out after the steel columns are fixed and the roof beams are lifted and corrected and fixed.Installation of crane beam before the roof lifting, can use a variety of cranes, such as the roof has been lifted to complete, the application of short-armed crane lifting, lifting boom height should be lower than the lower chord of the roof Chai 0.5m or more.If there is no crane, the crane can also be installed at the end of the roof frame and the top of the column with inverted chain.Crane beam should be transported inverted in the installation position below, so that the center of gravity of the beam aligned with the installation center, the installation can be carried out from one end to the other end or from the middle to the ends of the order, when the beam lifted to the design position away from the surface of the support 20cm, the manpower to support, so that the center line of the beam and the center line of the support surface (or the center line of the neighboring beams have been installed) aligned, and then slowly fall.If there is any deviation, lift the beam slightly and use crowbar to guide it to the right position. If the support is not flat, use the inclined iron piece to pad it flat.
After the stairs and platform beams are bolted through the connectors, adjust the flatness and installation position to meet the requirements of the drawings: weld the butt joints of the stairs and platform beams, and the quality of the welds is applied according to the instructions of the drawings.After installation, the ladder should not be skewed, twisted, deformed and other defects.The surface of the ladder and components should be inspected before installation to ensure that the surface is smooth and free of sharp edges, sharp corners, burrs or other external defects that may cause injury to the user of the ladder or impede its passage.When the steel inclined ladder is connected with the platform beam attached to the equipment, it is appropriate to use screws with long round holes at the connection to connect the same ladder section, and the combination of step height and step width should be consistent.
Installation of Floor Bearing Plate
No heavy objects shall be piled up on the plate; it is strictly prohibited to pile up metal parts on the pressed aluminum plate.All kinds of plate type should be stacked in a safe area without pollution, without obstructing traffic, without being hit by overhead heavy objects, and should take sheltering measures.When laying pressurized metal plates, temporary wooden boards should be set up in places where walking is frequent.All connectors should be stacked indoors separately according to species specifications.In other professions into the construction, the laying of the completed pressure plate should be covered to protect, to prevent heavy blow welding handle line fire and flammable material combustion occurs on-site handling of the pressure plate should be careful and light, no dragging, shall not be trampled on the board surface at will.
When lifting, special hangers should be used, and collision and scraping are strictly prohibited.
Installation of pressure metal plate, should avoid four boards in the same part of the lap when it can not be avoided, should be used to cut off the overlap angle. When the shear pegs are welded at the installation site, the pegs should be welded according to the design requirements, and the peg welder is generally used to penetrate the beam and plate to make a stable connection.
Can also be based on the peg layout requirements or instructions to put a straight line prevail on the pegs with electric welding for welding, requiring each peg for full welding, penetrate the floor bearing plate, the pegs welded to the platform beam.When welding the bolts, the gap through the floor bearing plate should not be too large, otherwise there will be leakage of concrete during pouring.
Construction workers in the welding, pay attention to the floor bearing plate overlap, to avoid stepping on the leakage of danger!
Corner brace installation
Corner braces are used to connect roof load-bearing steel beams and roof purlins, or to connect load-bearing steel columns and wall beams, to increase the out-of-plane stability of steel beams and columns.Generally, angle steel is used to make them.
The corner brace should be 45 degrees from the purlin, and should be arranged along the height of the girder.
The corner brace should be reliably connected with the purlin by bolts, and should not be loosened.
Anti-corrosion coating.
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..
Before use should be carefully check the variety, specifications and color of various paints to meet the design requirements.Before the construction of paint patching, the steel structure project has been checked and accepted and meets the design requirements.The painting operation site should have safety protection measures, fire prevention and ventilation measures to prevent fire and personnel poisoning accidents.
The order of painting, in general, should be according to the principles of top-down, left to right, 2 first inside and then outside, first slant and then straight, first difficult and then easy, so that the paint film is uniform, dense, smooth and flat;.
Open-air construction work should choose the appropriate weather, windy, rain, cold, etc. should not be operating
The direction of brushing, brushing vertical plane, the last should be from the top down; brushing horizontal surface, the last should be according to the direction of the light irradiation.
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 louis vuitton handbags
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.
| 1.Length |
H beam 4000-15000mm |
| 2.Height |
200-1200mm |
| 3.color |
According to customers |
| 4.Base |
Cement and steel fouddation bolts |
| 5.Main frame |
H beam |
| 6.Bolt |
Plain bolt ang high-strenth bolt |
| 7.Roof&wall |
Sandwich panel or color plate |
| 8.Door |
Sliding or rolling door |
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.
){kind=link}