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Introduction of Pakistan Prefabricated Steel Structure Construction Chemical Factory
Project Area: 4225 ㎡
Project Finished Time: Built in 2019-2020
Project Location: Lahore
Project Detail: Multi-story steel structures
Project Total Steel weight: 600 tons.
Company information of Pakistan Prefabricated Steel Structure Construction Chemical Factory
A brief introduction to you about our company first, then you can contact me if there is suitable project in the future.
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.
Step 1: Cutting
Cut steel plate into pieces and connections by flame cutting machines (CNC, Semi-automatic flame cutting machines). Long strips will be used as web and flange plate, connections will be used as connected, reinforced or stiffening plate.
Step 2: Assembly
Combine web and flange plate together through H-beams assembly machine, make tack welding. Keep the web plate in the middle line, do not be off the center line.
Step 3: Gantry automatic submerged arc welding
Make welding by gantry submerged arc welding machine. Make sure the welding sequence and reduce the welding deformation.
Step 4: Flange plate of straightening
Start straightening on welding-finished H steel beams by straightening machine.
Step 5: Connections process
Make holes on connected pieces by drilling machines. Make sure the hole size and precision.
Step 6: Welding
Welding with CO2. Make sure the weld quality without welding flaw.
Step 7: Shot blasting
Make shot blasting on steel profiles. Make sure the blasting grade and quality.
Step 8: Spray painting
Painting or other anti-corrosion surface treatment.
Step 9: Package & Loading
Pack steel structure profiles on steel pallet, which will be easy for loading, transportation and unloading jobs.
Agricultural steel building has low cost, short construction time, and less pollution. Therefore, it has become the best choice for new-style construction.
Structural parts: material, surface roughness, tolerance, surface treatment, straightness (or radian)
Connection: hole position deviation, bolt grade; welding method, welding standard, welding material; air tightness, non-destructive testing, liquid penetration testing, etc. are required
Overall structure: verticality, horizontality, etc.
Packaging: packaging materials, packaging methods
Storage: ambient temperature, ambient humidity
Transportation: loading and unloading, placing in vehicles, placing in containers, etc.
Fire protection technology. One of the most critical issues in agricultural steel building is the application of fire protection technology. The fire resistance rating of light steel structure houses is level 4. For light steel structure residential buildings, fire-resistant gypsum boards are pasted on both sides of the wall and the ceiling of the floor. For ordinary firewalls and household walls, 25.4 mm thick (1 inch) gypsum boards are used to protect them to meet the 1-hour fire protection requirement. The glass fiber filled between the wall columns and the floor joists also plays an active role in protecting fire and heat transfer.
Sound insulation technology. The agricultural steel building is filled with glass wool between the inner and outer walls and the floor joists, which effectively prevents the audio part transmitted through the air. For the impact sound transmitted through the solid, the following construction is performed: the partition wall is composed of two wall columns. There are two walls with intermediate spaces; for the small keel used to fix the gypsum board for the suspended ceiling, an elastic structure with small cut grooves is used to effectively reduce the transmission of structure-borne sound between floors.
If an agricultural steel building is damaged, we must immediately recognise and remedy the problem. The main factors of steel structural damage are:
(1) the structural viability of agricultural steel buildings is insufficient due to changes in load, overdue service and changes in rules and regulations;
2) The components of agricultural steelworks are deformed, twisted, damaged, deformed, etc., due to various accidents; which results in a weakening of the cross-section of the component, a twisting of the rod and a tearing of the connection;
(3) deformation, cracking and retardation of agricultural steel components or connections due to temperature differences;
4) The agricultural steel structure corrodes due to the erosion of chemical substances and electrochemical corrosion leads to a weakening of the cross-section of the steel structure;
5) Other include errors in design, production, construction and illegal use and operation during the service period.
There are three main technical reinforcement measures for agricultural steel construction:
1) Cross-section defences: Apply the element locally or over the entire length of the element with steel and connect it to a whole to carry the force together;
2) Change the calculation diagram: add additional supports, adjust load distribution, reduce cutting force level, force displacement of static indefinite structural support and reduce peak voltage;
3) Pre-tensioned cable method: use high-strength cables to strengthen the weak links of the structure or to improve the overall durability, stiffness and stability of the structure.
Qingdao Xinguangzheng Steel Structure Co., Ltd. has been developing agricultural steel buildings for many years, and is known as "the national brand leader in the Chinesesteel building industry". Therefore, customers can choose their products with confidence.
Generally speaking, Steel building accessories include: steel column systems, steel beam systems, support systems, connection systems, purlin systems, and brace stairs. This is a part and an indispensable part of every steel structure project.
What are the advantages of using Steel building accessories?
How to paint Steel building accessories?
What may cause the deformation of Steel building accessories?
1. Health
In the process of using Steel building accessories, dry construction is used to reduce the environmental pollution caused by waste. The Steel building accessories of the house can be 100% recycled, and most of other supporting materials can also be recycled, which is in line with the current awareness of environmental protection; All materials are green building materials, which meet the requirements of ecological environment and are conducive to health.
2. Comfort
The wall is built by Steel building accessories, and the high-efficiency energy-saving system is adopted, which has breathing function and can adjust the dry humidity of indoor air; The roof has ventilation function, which can form a flowing air room over the house to ensure the ventilation and heat dissipation requirements inside the roof.
3. Fast
All dry operations shall be carried out without being affected by environmental seasons. A building of about 300 square meters only needs 5 workers and 30 working days to complete the whole process from foundation to decoration.
4. Environmental protection
Materials can be 100% recycled, truly green and pollution-free.
5. Energy saving
All adopt high-efficiency and energy-saving walls, with good thermal insulation, heat insulation and sound insulation effects, which can reach the energy-saving standard of 50%.
(1) Method of painting construction:
There are two commonly used methods in Steel building accessories maintenance engineering, namely, painting method and spraying method.
(2) Matters needing attention:
1) The base layer should be thoroughly cleaned before painting, and kept dry, and the first coat of primer should be applied as soon as possible within no more than 8h.
2) When applying the primer, choose an appropriate painting method according to the size of the area.
3) When painting the top coat, it should be painted according to the color and variety requirements of the design, and the painting method is the same as the primer painting method.
4) Painting environment
5) The thinner should be used correctly.
(1) The actual dynamic load of Steel building accessories exceeds the maximum load (commonly known as "overload") allowed during the design of the steel structure.
(2) Bearing the impact of dynamic load for a long time.
(3) The impact of natural disasters (such as earthquakes) or uneven settlement of foundations.
(4) Improper use and maintenance or breakage of Steel building accessories due to mechanical damage and withdrawal from work, resulting in an abnormal deformation of the steel structure due to unbalanced forces.
Qingdao Xinguangzheng Steel Structure Co., Ltd. is known for high precision Steel building accessories. And you can connect them.
Pictures for Prefab Metal Workshop Steel Structure Construction Workshop House in Costa Rica
Drawings & Quotation
1) Customized design is welcomed.
2) We have an excellent design team. According to the requirements of different projects and clients,we will supply different designs and steel products.In order to give you an exactly quotation and drawings, please let us know the following informations. We will quote for you promptly.
Basic design requirements of steel structure warehouse
Basic Design Requirements | ||
1.Project location | 5.Length (side wall,m) | 9.Window quantity, size |
2.Snow load | 6.Width (end wall, m) | 10.Door quantity, size |
3.Wind load | 7.Wall Height (eave, m) | 11.Brickwall needed or not. If yes, 1.2m high or 1.5m high |
4.Seismic magnitude | 8.Middle column allowed or not | 12.Crane needed or not |
13.Thermal insulation. If yes, EPS, fiberglass wool, rockwool, PU sandwich panels will be suggested; If not, the metal steel sheets will be ok. The cost of the latter will be much lower than that of the former. |
Engineering Design Software:
AutoCAD, PKPM, MTS, 3D3S, Tarch,Tekla Structures(Xsteel)V12.0.etc.
Cheap prefab structural steel warehouse prefabricated outdoor storage shed building design price steel structure warehouse
Residential steel building is a residential system composed of an envelope structure and a steel supporting structure. It is a new type of energy-saving and land-saving residential system. Its steel structure residence abandoned solid clay bricks and effectively used land resources. Compared with traditional houses, steel structure houses have advantages in terms of use function, design, construction and comprehensive economy.
What are the reasons why people choose Residential steel building?
What should the choice of Residential steel building structural system look like?
What is the framework system used by Residential steel building?
1. Residential steel building energy saving and environmental protection
The main body of the Residential steel building is steel components, and the wall material is thermal insulation mortar, which not only meets the requirements for energy saving, but also can be recycled. It is a green and environmentally friendly recycling building that meets the requirements of sustainable development. The thermal resistance can reach a brick wall thickness of about 1m. At present, the global population is large and energy consumption is large, and the promotion and application of steel structure housing is the final choice.
2. Residential steel building's pipe network line layout is convenient
In residential buildings, there are many lines of professional plumbing and electricity pipe network, which will reduce the effective use area in traditional buildings. In Residential steel building, there are many holes or holes in beams and columns, which is easy to form a cavity for wiring layout. Moreover, the beam can be artificially made into a honeycomb shape, which is convenient for line layout, which not only saves the net height of the building, but also increases the use area.
According to engineering practice, the commonly used Residential steel building structure system can be selected with reference to the following scope:
The 4th to 6th floors are the steel frame system, the steel frame-support system, and the steel frame-shear wall system; the 7th to 12th floors are the steel frame-concrete core tube (shear wall) system.
The section form of steel components should be hot-rolled H-section steel, high-frequency welded H-section steel and steel tube concrete.
Light steel frame system
The light steel frame system is a load-bearing frame composed of hot-rolled H-shaped steel (or I-beam), high-frequency welded H-shaped and cold-formed square pipes, and a steel structure residence with composite curtain walls or infill walls as the enclosure structure system.
The wall panels in the picture collection are made in the factory with fly ash as the filler, sulfoaluminate as the cement, polystyrene foam (EPS) as the core material, and glass fiber mesh as the reinforcement material. A lightweight board. Special adhesive is used to bond the plate and the light steel frame, and between the plate and the plate. To prevent thermal bridges using double-layer plates.
Qingdao Xinguangzheng Steel Structure Co., Ltd., as a leading company in China's Residential steel building, has committed to providing the most suitable Residential steel building at a reasonable price, and whatever it takes to satisfy the customer’s needs.
Commercial steel building is a new type of energy-saving and environmentally-friendly building system. It is known as one of the "green buildings" in the 21st century. It is an energy-saving, environmentally-friendly, and recyclable building structure.
The general sequence of commercial steel building welding is: pre welding inspection → preheating and derusting → installation and welding of base plate and arc striking plate → welding → inspection
1. Before commercial steel building welding, check the groove angle, blunt edge, gap and staggered joint, and remove the rust, oil stain and iron oxide scale in and on both sides of the groove.
2. Preheating. Before commercial steel building welding, gas welding or special baking gun shall be used to heat the groove and the base metal within 100mm on both sides evenly, and the surface thermometer shall be used to measure the temperature to prevent the temperature from meeting the requirements or local oxidation on the surface and preheating temperature.
3. Recheck the preheating temperature. If the temperature is not enough, reheat it to make it meet the requirements.
4. When assembling and welding the backing plate and arc striking plate, the surface cleanliness shall be the same as that of the groove surface, the backing plate shall be close to the base metal, and the arc striking plate shall be firmly welded with the base metal.
1. Welding: the weld bead of the first layer shall seal the connection between the base metal and the backing plate in the groove, and then weld layer by layer until the groove is filled. After each weld is welded, the welding slag and spatter must be removed, and the welding defects shall be ground away and repaired in time.
2. An interface must be welded continuously. If it is necessary to stop welding halfway, it shall be subject to thermal insulation and slow cooling treatment, and shall be heated again according to the regulations before re welding.
3. In case of rain and snow, commercial steel building shall stop welding. There shall be a wind shield and canopy around and above the welded junction of components. When the wind speed is greater than 5m / s, the welding shall be stopped. When the ambient temperature is lower than zero, preheating and post heating measures shall be taken for construction according to regulations.
4. Carbon structural steel shall be subject to weld flaw detection after the weld is cooled to ambient temperature, and low alloy structural steel shall be subject to weld flaw detection 24 hours after completion.
5. Welders and inspectors of commercial steel building shall carefully fill in the operation record form.
When purchasing commercial steel building, we should pay attention to the design of waterproof, heat-insulating and anti-corrosion of the steel structure. The design documents did not specify the steel derusting grade and paint and coating thickness, and did not adopt corresponding measures according to the different fire resistance limits of different parts. commercial steel building of thermal insulation protection measures needs to be avoided.
Commercial steel building has focused on the development and production of commercial steel buildings for several years. And it commits to provide perfect service for every customer from all over the world.