Prefabricated building refers to the transfer of a large amount of on-site work traditional construction methods to a factory, components accessories (such as floor slabs, wallboards, staircases, balconies, etc.) are manufactured, transport to the construction site, through a reliable connection in the field assembly installation of the building. During the construction of the prefabricated building, Guangdong Tien Chen Steel Structure Engineering Co. , ltd.-steel structure engineering, Dongguan steel structure engineering, Steel Structure Engineering Construction Co. , Ltd. :

1.Prefabricated building refers to the transfer of a large amount of on-site work traditional construction methods to a factory, components accessories (such as floor slabs, wallboards, staircases, balconies, etc.) are manufactured, transport to the construction site, through a reliable connection in the field assembly installation of the building. During the construction of the prefabricated building, Guangdong Tien Chen Steel Structure Engineering Co. , ltd.-steel structure engineering, Dongguan steel structure engineering, Steel Structure Engineering Construction Co. , Ltd. :

2. The key points of installation of prefabricated composite balcony board, the prefabricated balcony is carried out by using four lifting rings reserved on the prefabricated balcony board during hoisting, during the process of hoisting the balcony board, the balcony board stops at 500 mm the working surface, the position is adjusted, then the installation, the installation of slow action; alignment of the control line after the balcony board, fine-tune the position to ensure horizontal placement, then U-shaped bracket adjustment elevation; after the balcony lifting installation, it should also be corrected to ensure installation quality.

3. The key points of prefabricated wallboard hoisting construction, in order to ensure that when hoisting between different components, the two sides of the wire rope replace the lifting point consume a lot of time, the lifting beam is set as one side of the two lifting points, on the other side, component number lifting points are set according to the needs of engineering components. According to the position of lifting ring of prefabricated wall panel, the module lifting beam is used to lift the wall panel, the steel wire rope is connected with the reserved lifting ring of the outer wall panel by using the shackle, the lifting distance is 500mm, after checking the appearance quality of the component the connection of the lifting ring is correct, the lifting can be continued. Before lifting the precast wallboard, it is necessary to nail the side positive angle under the precast wallboard to make the full-length multi-layer panel 500mm wide, the lifting requires slow uniform speed, so as to ensure that the edge of the precast wallboard is damaged. When prefabricated wallboard is hoisting, when tower crane is required to lift slowly to 600mm above the working floor, the construction personnel use two slide ropes to hook with a hitch, pull the board with slide ropes, slowly lower the wallboard.

4. The key points of precast beam board construction, according to the requirements of precast pedestal, pay attention to the counter-arch setting of pedestal. Normal pouring of concrete, pay attention to vibration compactness, template coating isolating agent. When the concrete strength reaches 80% , the pre-stressed tensioning is carried out. Tension should be carried out symmetrically checked by stress-controlled elongation.

5. The key points of the installation of the prefabricated bay window, the lifting of the bay window is connected by the lifting lug, the bolt the reserved nut on the bay window. After connecting, place the bay window 300mm away the work surface, according to the position line, move the bay window into position slowly until the bay window bolt is adjusted to the position of the hole through the wall, the custom U-shaped bay window horizontal occlusal measure piece is set on the bay window, the bay window is pulled by a slide rope, so that the bolt is inserted into the connection hole of the wall panel.

6. The prefabricated stair slab installation construction, when the prefabricated stair slab installation, 500 mm away the work surface pause, according to the direction of the stair slab adjustment, in place slowly operation, to avoid the stair slab seismic fracture damage. After it is basically in position, according to the control line, the crowbar is used to fine adjust the position, after the correction, the welding is fixed.