High-Rise Steel Structure Construction Made of Cfst
|FOB Unit Price:||US $60 US $40|
|Purchase Qty. (Square Meters)||FOB Unit Price|
|Production Capacity:||3000 Tons Per Month|
|Transport Package:||as Your Requirement|
|Payment Terms:||L/C, T/T|
- Model NO.: Jinfei building 87
- Standard: GB, JIS
- Forming: Welding
- Member: Steel Column
- Carbon Structural Steel: Q345
- Application: Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part, Steel Walkway and Floor, Steel Structure Bridge
- Energy Saving: Repeated Use
- Construction: High Strength Bolt
- Door: Silding Door, Roller Door, Steel Door etc.
- Origin: Qingdao Shandong
- Type: H-Section Steel
- Trademark: Quality Carbon Structural Steel and Alloy Structural Steel, Jinfei steel structure
- Connection Form: Bolt Connection
- Type of Steel For Building Structure: High-Strength Steel
- Residential Wall Structure: Wall Support
- Size: According to Your Requirement
- Life Time: >50 Years
- Window: PVC,Aluminum Alloy
- Specification: ISO, SGS
- HS Code: 9406000090
High-rise Steel Structure Construction Made Of CFST
A) space feeling is strong
Due to the steel structure of compressive strength, resistance to lateral bending strength is very big, 1.5 times that of concrete strength, steel structure architectural space is occupied so far less than the concrete structure occupies space, thus increasing the use of space.
B) the construction speed is fast
Steel structure components are after factory to on site for installation, compared with ordinary concrete, to avoid the scaffold in construction of a large number of build-up, at the same time using the template instead of concrete, steel sheet and installation of steel structure and concrete construction can cross, thus improving the construction schedule.
C) low cost, more environmentally friendly
Steel can be recycled, so steel structure also can be recycling use, lower cost than other building materials, and does not produce a large number of construction waste, relative material such as concrete more environmentally friendly to the environment.
A) high temperature resistance is poor
If in the case of a fire, the thermal conductivity of steel is much bigger than the coefficient of thermal conductivity of reinforced concrete, and its high temperature resistance of reinforced concrete structures that are lower than that with the temperature rising, the yield strength and elastic modulus of steel structure will be a sharp drop in.If the steel structure in a temperature of 300 ºC to 500 ºC environment, its strength by 40% to 50%.If the temperature over 550 ºC, the steel structure will be almost completely loss of stiffness and strength, deformation increases rapidly, carrying capacity is lost, lead to the steel structure collapsed.Therefore, in the process of architectural design of steel structure steel structure fire prevention measures is a very important one link.
B) the difference of corrosion resistance
Because the steel itself has the characteristic of easy oxidation, decided to the surface of the steel structure is easy to generate oxidation rust corrosion can cause stress concentration, affect the safety of steel structure, lead to the steel structure damage in advance, therefore, high-rise steel structure and the effective corrosion protection work can effectively ensure the use fixed number of year.
High-rise steel structure system
A) for the division of High-rise steel structure system, architectural design, building seismic design code and the fire protection design have not form a unified standard, generally refers to the construction total height is greater than 24 m for high-rise building, building a total height of more than 60 m for high-rise building.
B) for the structure design, the general is divided into six categories: frame structure, shear wall structure system, frame - shear wall structure, frame - tube structure system, tube in tube structural system, the structure of the beam tube system.At present, has been extensively used in high-rise steel frame structure instead of reinforced concrete frame structure, good results have been achieved.Converter high-level framework system of metallurgy of these projects is frame structure system, because of the high strength steel frame (steel basically belongs to the isotropic materials, compressive, tensile and shear strength are high) has not only good bearing capacity, but also save construction materials;Steel frame beam and column section size is small, save a lot of building usable floor area, save a lot of interlayer height;Good ductility of steel frame structure, light weight, small mass inertia force, is advantageous to the earthquake;Steel frame of overall quality is greatly reduced, basic cost also is able to save accordingly;Steel structures can be a large number of factory production, the processing quality well, portable, transportation and installation construction speed is fast, the production time in advance.
Material selection of the.High-rise steel structure system
A) steel structure has many advantages, but also has its own shortcomings, is the coefficient of thermal conductivity, fire resistance is poor.Typically take in steel structure fire retardant coating surface spraying a certain thickness of, because the price is higher, fire retardant coating accounted for the proportion of the project cost is very big, so is typically the cost of fire retardant coating affairs calculated separately.High-rise frame system of converter using Q345C with low-alloy and high-strength steel as a general structure of the main girder frame system and platform, in the heated area with spray coating or heat insulation measures to deal with.
B) with the improvement of metallurgical technology, refractory steel have success, and the application in high-rise buildings.Currently used in production of baosteel have B400RNQ B490RNQ and two types of fire-resistant steel and its mechanical properties and chemical composition such as indexes to suit the requirements of the structural steel.Ordinary steel at 550 ºC high temperature has been completely lose bearing capacity, baosteel's production of these two models in 600 ºC when the yield strength of 150 ~ 220 mpa.
|1.||Main steel frame :||Steel Welded H Section or hot rolled H section (specification Q235 , Q345 ) for columns and beams|
|Secondary frame :||hot dip galvanized C purlin , steel bracing , tie bar , knee brace , edge cover etc.|
|2.||Roof panel :||EPS sandwich panel , glass fiber sandwich panel , rock wool sandwich panel , and Pu sandwich panel or steel sheet|
|Wall panel :||Sandwich Panel or Corrugated Steel Sheet|
|Tie Rod:||Circular Steel Tube|
|Column & Transverse Brace:||Angle Steel or H Section Steel or Steel Pipe|
|Knee Brace:||Angle Steel|
|Roof Gutter:||Color Steel Sheet|
|3.||Door:||Sliding Sandwich Panel Door or rolling Metal Door|
|Windows:||PVC/Aluminum Alloy Window|
|Connecting:||post feet bolts, intensive bolt , intensive bolt|
|4.||Packing:||according to the pack list made by our engineer|
|5.||Drawing:||We can make the design and quotation according to your require or your drawing|
1.Q235,Q345 H section steel structure for columns and beam
2. Pre-embedding anchor bolts for connection columns to foundation`
3. Intensive bolts for connection tween columns and beams.
4. Wall/roof panel: one layer corrugated stee plate or sandwich panels
5. Windows/door . PVC, aluminium alloy , steel etc.
6. Color steel plate or galvanized steel gutters and pvs tubes for rain wate
Design Common Norms: