In general villas or duplex buildings, there will be stairs installation, which plays the role of connection. The direct connection between the floor and the floor, different styles of different buildings will install different stairs. The spiral staircase is the type that people prefer, then the rotation What are the types of staircase design that need attention? What are the principles of the rotary staircase? Next, let me introduce you to the small series of the decoration home network.
First, the rotating staircase design considerations
1. In order to avoid the illusion when going up and down the stairs, the height of the first step and the last step of the stairs should be consistent with other levels. If you need to change it, it should be controlled within 4 cm, preferably no more than 2 cm to 3 cm.
2, railing spacing: the distance between the center of the two railings is 8 cm, not more than 12.5 cm, so as not to let the children stick their head out of the gap. Handrail height: 85~90 cm to the waist position, 5.5 cm for the handrail diameter. Step height and depth: The step height should be 15~18 cm, and the step depth is 22~27 cm. The order is about 15 steps. If it is too high, you may need to set up a stair rest platform. Stair width: When the space is empty, the net width is not less than 75 cm; when there are walls on both sides , the net width is not less than 90 cm.
3, safety: stair parts should be smooth, round, no protruding, sharp parts. For families with children, the slope of the stairs should be slow and the angle of rotation should not be too large; the stair steps should be anti-slip measures, such as anti-slip strips, anti-slip mats, anti-slip grooves, etc.
4, stair lighting: the light is too dark is not conducive to walking safety, the light is too bright and easy to appear glare. Therefore, the light of the stairs should be soft and clear. Stair noise problem: It is related to the connection of various parts of the pedal. It should not cause excessive noise during use, so as not to affect the rest of family members.
Second, the principle of the rotary staircase
1. The structure of the spiral staircase causes the tread plate to be swayed up and down as if walking on the outside of the stairs. This is a common disadvantage of all center column rotary staircases, and the larger the radius of the stairs, the more swaying. The load-bearing capacity of a spiral staircase is generally 150KG to 200KG. In contrast, the weight of other finished steel-wood staircases is generally around 400KG.
2. There is no spiral staircase in the middle column. This spiral staircase mainly supports the load by the double spiral beam under the step, or the load is supported by the railing of the stairs. Relatively speaking, the center pillar is more complicated, and the stairs are subjected to various forces such as bending, twisting, shearing, pressing, etc., and the force is complicated and difficult to calculate. The force of the railing in the pillarless staircase is more complicated because the railing is generally narrower and the plane of the beam is not well controlled.
There are usually villas or duplex buildings in the interior. The materials of the stairs are different and the styles are different. So what are the precautions and principles of the design of the rotary staircase? Understand, if you still want to know more about decoration, please continue to pay attention to the decoration home Internet cafe.
Grinding Glass Microsphere
1. To select glass beads in types, sizes and quantity in accordance with viscosity, rigidity and dispersal of the grinded materials.
2. To clean glass beads and mill's inside before the grinding processed.
3. To input the grinded materials firstly and a curtain amount of glass beads later. To add continuously glass beads till 70%~80% of the mill is full.
4. To forbid to keep glass beads funning with little grinded material for a long time, as the glass beads inside the mill are easily broken at high speed operation.
5. To add new glass beads to ensure the quality and efficiency of grinded materials.
Grinding Glass Beads are mainly used for the disperser, grinding media of industries, such as coloring, paint, ink, coatings, resins, chemical engineering, with the advantages of smooth surface, even size, high hardness, good chemical stability. Thanks to the characteristics of heat-resistant, wearable, compression strength, the filling-type bead could be used to improve glass fibre reinforced plastic, rubber, and so on.
The glass bead can be produced based on the standard of countries or areas, such as EN1423/1424, AASHTO M247, BS6088, JIS R3301 and KS L2521 etc.
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