Stair tread height standard how to design the slop

2022-07-22
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How to design stairs to make them a beautiful scenery in home decoration? At this time, you need to know the specification of stair design, which includes stair step height, stair slope and stair width. Now let's introduce it to you:

how to design stairs to make them a beautiful scenery for home decoration? At this time, you need to know the specification of stair design, which includes stair step height, stair slope and stair width. Now let's introduce to you:

stair step height standard:

the maximum stair step height is h, and the most comfortable step size is: b+h=450mm b+2h=600mm. For example, if the tread is 280mm, the step height is 160mm, and if the tread is 300mm, the stair step height is 150mm. There are specific provisions in the specification, and the proportion of some special stairs may reach 620mm. Generally, the size of the step should be compatible with the size and stride of the human foot, and it is also related to the use function in different types of buildings. The size of the step includes height and width. The ratio of step height to width is the gradient of stairs. Steps can have different values under the same slope, giving an appropriate range to make people feel comfortable when walking

slope of stairs:

the determination of the slope of stairs should take into account the factors of walking comfort, climbing efficiency and space state. The connection line of each point at the leading edge of each step of the ladder is called the slope line. The angle between the slope line and the horizontal plane is the slope of the stairs (the tangent of this angle is called the gradient of the stairs). The slope of indoor stairs is generally 20 degrees -45 degrees, and the best slope is about 30 degrees. Stairs with special functions require different slopes. For example, the slope of the ladder is more than 60 degrees, the special stairs are generally 45 degrees -60 degrees, the slope of the indoor and outdoor steps is 14 degrees -27 degrees, and the slope of the ramp is usually less than 15 degrees. Generally speaking, in places with large flow of people, high safety standards, or abundant area, the slope of stairs should be gentle. For auxiliary stairs that are only used by a few people or infrequently used, the slope can be steep, but it is better not to exceed 38 degrees, except for personalized stairs or rotating stairs due to space

width of stairs:

the width of the ladder should be appropriate. Generally, the ladder is calculated according to the flow of people per share of 0.55 + (0~0.15) M. That is to say, it is a staircase. To meet the need of two streams of people going up and down at the same time, the width of the staircase should be 1.1m~1.4m, and the width of the staircase (the width of the stairwell is 0.1M, and the railing assistant reserves 0.1M space) should be 2.4m~3.0m. In addition, continuous steps should not exceed 18 steps. Now people have higher requirements for the quality of life, and the design of stairs is not only reasonable in size. Many projects require stairs with landscape, especially open space. Some plants are planted on both sides of the stairs. The stair frame is light and flexible, and the railings are transparent, which can make people feel less monotonous and tired when going up and down the stairs

editor's summary: the stair step height standard and how to design the slope and width of stairs are introduced. I hope it can help you. Please pay attention to more information

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