Second, before cast-in-place cement, the design should be done well, especially the distribution of step height, which can not be calculated simply according to the height of the existing cement floor, but also according to the height of the finished surface. Especially when playing BBK and The Last BBK, designers should be careful when designing.
Three, pouring method, template, reinforcement is not much to say, the conventional things, pay attention to one thing, pouring stairs must be concrete with the triangle of the steps, and some irresponsible practices are to pour the inclined plate with concrete below, and build the triangle with red bricks or hollow bricks. Although the overall firmness is fine, it is not good to fix the pedal railing on such a pedal surface.
Fourth, the rest is the level and error, just don't make too much error, 10MM to 20MM, which is too precise and demanding.
Precautions for stair installation 1. After the goods arrive at the construction site, it is necessary to check whether all the goods have arrived and whether there are any problems in transportation on the road (especially small items such as cork and wood cover hardware).
2. Look at the drawings to see whether the structure meets the requirements of customers and whether the proportion is consistent with the drawing size. If there is any modification by customers, the construction must be carried out after consultation between the two parties.
3. When inspecting the goods, clean the ground and spread some cartons or pearl cotton on the ground to prevent the goods from being damaged and affecting the overall appearance.
4, construction must use paper or pearl cotton to protect the construction ground, to prevent some wood floor wood ash will react to the scene. The wood ash of red sandalwood and black gold wood will make white walls or light-colored floor tiles appear red (treated).
5. When installing the bulk ladder, pay attention to that the pedals should be horizontal and vertical and stick to the bottom. (Note: Glue must be coated on the back of the pedal, not on a large area, so as to avoid the moisture in the glue being sucked into the board and causing the pedal to deform. Generally speaking, the pedal with a length of 1 meter should play steadily until 8 o'clock. When gluing, the paint at the gluing place should be worn off to avoid affecting its adhesion. Generally made of two-component glue provided by the manufacturer)
6. The installation of small columns should be vertical and firm. During installation, the arrangement should be reasonable and tidy, and closed with handrails. The contact surface between small columns and marble must be coated with epoxy resin glue (don't use marble glue. Without toughness, it will crack when it is dry.
7. When installing handrails, it is required to be straight and smooth, the height of handrails and elbows is consistent, and there is no obvious interface trace and obvious size.
8. When installing the elbow, it is required to be consistent with the size of the handrail, and care must be taken during installation to prevent short sawing, damage and touching flowers, thus prolonging the construction period.
9. When installing the integral ladder, everyone should pay attention to the site. First of all, we should classify the products, see the drawings clearly, which part to do first, which part to do later, what ladder type to use and what tools to use. We should be ready at any time.
10.？ When installing the whole ladder together with the spare parts, you should first find the fixed point, and then connect the whole part with the floor and fix it firmly. Safety first, put an end to all hidden dangers. When installing the whole ladder, you should read the serial number clearly, find the right parts and see what kind of fittings and connectors it is.
1 1.？ After the integral ladder is installed, the installation of He Lanhe should be consistent with the requirements of the integral ladder, especially the place, size and height connected with the integral ladder should be straight.
12.？ After installation, the surface of the product should be smooth, and the overall paint surface should be free of scratches, bumps and glue traces (handle the spilled glue in time to avoid sticking to the stairs).
13.？ After the construction is completed, the site must be cleaned to ensure that there are no sundries, sawdust, wood powder, etc.