The portal frame steel structure is a branch of light steel structure. The main advantage of this structure type is: light, fast, and efficient light steel structure.
1. Apply the portal frame steel structure, which is a new building material for energy conservation and environmental protection. It can realize factory processing, on -site construction assembly, short construction cycle, clear power transmission path, fast component production and construction cycle;
2. The portal frame steel structure is strong and durable, the building has a novel and beautiful appearance, the quality is suitable, and the economic benefits are obvious. Therefore, it is widely used in industrial and civil buildings such as industrial, commercial and cultural and entertainment;
3. The main structure adopts portal frame steel structure, which can be single -span, double or more span, and can also be attached. Making the middle column into a shaking column reflects the principle of concentrated material use;
4. The light roof of the portal frame steel structure can not only reduce the size of the cross section of the beams and columns, but also decreases accordingly. The method of using the cross -section of the change of the component to adapt to the change of the bending moment is one of the technical measures of the slimming of the door. Pillar feet are often hinged, (when there are bridge cranes, use the section and pillar foot fixation);
5. Apply the portal frame steel structure, which can be made into a large double -slope roof in a multi -span building, creating conditions for the drainage of long -slope surface drainage. Set the middle column to reduce the span of the beam, thereby reducing the cost. The middle column is made of upper and lower hinges made of steel pipes, occupying small space;
6. Apply the portal frame steel structure with a support guarantee of the side -oriented rigidity.
7. Apply the portal frame steel structure, which can be used in cross -section. The cross section is proportional to the bending moment.
8. Support can be lighter. Connect it directly or with a horizontal node board on the web plate, you can use tight round steel;
9. The structural components can be produced in the factory, and the degree of industrialization is high. The component unit can be divided according to the transportation conditions. The units are connected with bolts at the scene. The installation is convenient and fast, and the civil construction volume is small.
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