As the steel structure engineering gradually is an important part of modern buildings, it is basically a building adopted by dense groups. Therefore, its construction quality and safety are directly related to the life and safety of the entire building. In the construction process, what are the points and problems that need attention?
Several major matters that the
steel structure should pay attention to during construction:
Anti -seepage: Prevent rainwater from leaking from the outside to the metal roof. Rain is mainly entered the metal roof through the gap or node. To achieve the anti -seepage function, it is necessary to use a hidden fixing after using a sealing cushion in the screw port. Use a seal or welding at the overlap at the plate. Dreatment of abdominal distension.
Fire: When a fire occurs, the metal roof material will not burn, and the flames will not penetrate the metal roof panel.
Anti -wind pressure: Resisting the local wind pressure, the metal roof panel will not be pulled off by negative wind pressure. The wind resistance performance is related to the density of the fixed seat with the density of the metal roof panel and the fixed seat.
Sound insulation: Prevent sounds from passing from outdoors to indoor or indoor to outdoor. Fill in the sound insulation material in the metal roof layer (usually as the insulation cotton), and the sound insulation effect is represented by the sound barrier dibel on both sides of the metal roof layer. The sound insulation effect is related to the density and thickness of the sound insulation material. It should be noted that the resistance effect of sound insulation materials on different frequencies is different.
Ventilation: air exchange indoor and outdoor. Set a ventilated port on the metal roof.
Moisture -proof: Prevent water vapor condensation in the bottom layer of the metal roof and the metal roof layer, and discharge the water vapor in the metal roof layer. The solution is to fill the thermal insulation cotton in the metal roof layer, spread the film on the bottom plate of the metal roof, and have ventilated nodes on the metal roof panel.
Bevene: Undertake construction loads, rain, dust, snow pressure, and maintenance of loads. The load -bearing performance of the metal roof panel is related to the section characteristics of the plate shape, the strength thickness of the material, the method of transmission, and the spacing of the pupa (auxiliary bar).
