Steel structure frame |
|
|
Component |
Common materials |
Model/Specification |
Notes |
Steel column |
Q235,Q345 |
shaped Steel: H100x100x6x8, H200x200x8x12; Square Tube: 100x100x6, 150x150x8 |
Specifications are selected based on load and height. Q345 has higher strength than Q235. |
Steel beam |
Q235, Q345 |
H-shaped Steel: H200x100x5.5x8, H300x150x6.5x9; I-beam: I20a, I25a |
The specifications of steel beams are determined based on span and load. |
Joints |
Q235, Q345 |
Joint plate thickness: 10mm, 12mm, 16mm; High-strength bolts: M20, M24 |
The thickness of joint plates and the specifications of bolts are selected based on force conditions. |
Bracing |
Q235, Q345 |
Angle steel: L50x5, L75x6; Round steel: Φ20, Φ25; Steel pipe: Φ60x3.5, Φ89x4 |
Bracing forms include angle steel, round steel, or steel pipes, with specifications designed based on force requirements. |
Floor Slab |
Q235, Q345 |
Profiled steel sheet: YX51-250-750, YX75-200-600; Thickness: 0.8mm, 1.0mm, 1.2mm |
Profiled steel sheets are combined with concrete to form floor slabs, with thickness selected based on load. |
Foundation |
C30, C35 Concrete |
Rebar: HRB400, Φ12, Φ16, Φ20; Foundation size: Determined based on design load |
The concrete strength grade and rebar specifications are determined based on load and geological conditions. |
Connectors |
Q235, Q345 |
High-strength bolts: M16, M20, M24; Ordinary bolts: M12, M16; Welding rods: E43, E50 |
High-strength bolts are used for main force-bearing joints, while ordinary bolts are used for secondary structures. |
Secondary Structures |
Q235, Q345 |
Purlins: C120x50x20x2.5, Z180x70x20x2.5; Wall beams: C160x60x20x3.0 |
Purlins and wall beams are typically made of cold-formed thin-walled steel sections. |
Fire Protection Treatment |
Fire-resistant coatings |
Thickness: 1.5mm, 2.0mm, 2.5mm |
The thickness of the coating is selected based on fire resistance requirements. |
Anti-corrosion Treatment |
Anti-corrosion coatings |
Epoxy zinc-rich primer + epoxy mica iron intermediate coat + polyurethane topcoat, coating thickness: 200μm, 250μm |
Anti-corrosion coatings are selected based on environmental corrosion conditions. |