In the end, can the 25mm thick cement pressure plate be used as a LOFT steel structure sandwich floo

First of all, the selection standard of the main and secondary beams of the steel structure is recommended: 1. The span is less than 8m: the main beam is 15h section steel, the secondary beam is 10 channel steel, and the beam is 63 angle steel.

2. The spacing of the beam refers to the distance from the outer edge of the side beam to the center of the inner beam, and from the center of the inner beam to the center of the inner beam. 3. The non-embedded parts are fixed with expansion bolts. 4. The upper and lower beam structure can be used if the space is abundant, and the plane structure can be used if the space is insufficient.

Welding requirements for steel structure: 1. At least three sides are welded, and the top surface can not be welded. 2. The weld strength and welding quality must meet the requirements of GB T5185-1985 and GB T985-1988 standards.

3. If the edge of the plate is in a suspended position, a secondary beam must be added. Installation of loft steel structure sandwich floor slab: 1. Before laying the plate, the weld on the top surface must be sanded flat and the welding spatter must be removed.

2. The longitudinal direction of the plate should be parallel to the main beam. 3. Any edge of the plate shall not be suspended. 4. There must be a gap of 3-5mm between the plates.

5. The joint between the plate and the plate should be located in the center of the beam. Nailing requirements: 1. Choose self-tapping nails.

2. The length of the self-tapping nail should be drilled first and then nailed, and the nail hole should be larger than the diameter of the nail. 4. Nailing starts with the nail in the center of the plate, then beats outward, and finally hits the side nail. 5. The nailing position of the side nail should be about 20mm away from the edge of the plate.

6. Nail distance against the wall can be done without nailing. Treatment of joints: 1. When laying the board, there must be a gap of 3-5mm between the board and the board and the wall (if the wooden floor is laid, there is no gap).

2. The joints can be injected with silicone sealant, or mortar can be used to fill the joints. Subsequent.

The mezzanine is made of steel, and possibly the floor can be made of wooden planks.

1. The aluminum alloy template has a long service life, and the average life of the aluminum alloy template can reach 300-500 times or more.

2. All structures are assembled by aluminum alloy templates, and after the assembly is completed, an overall frame is formed, with good stability and high bearing capacity.

3. The integrated design of the top mold and the support system is realized, and the early dismantling technology is integrated into the roof support system, which greatly improves the turnover rate of the formwork.

4. There are relatively few aluminum formwork support rods, which has a large on-site operation space, smooth personnel and convenient material handling, which greatly improves the efficiency of on-site management.

5. After the aluminum alloy formwork system is removed, the surface quality of the concrete is smooth and clean, and the effect of facing fair-faced concrete is achieved.

6. It has a wide range of applications, suitable for housing construction, infrastructure, canals and tunnels, etc.

Hope it helps.