How do you count stairs? How stairs are calculated

1. Staircase engineering quantity calculation: concrete volume (length square of the ladder section height square) open square Ladder plate width Plate thickness Same flight The number of stairs The width of the steps The height of the steps 2 The width of the ladder The number of steps The number of steps The number of the same steps The number of stairs. Vertical projection area (run width, wall width), run length, number of same runs, number of stairs.

Stair roof area (run length 2 run height 2) power run width number of the same run number of stairs. Wherein: flight length (refers to projection length) (number of steps 1) step width; Run height Number of steps Step height.

2. Calculation of the engineering quantity of the rest platform: concrete volume, platform width, platform length, platform plate thickness, number of layers, and the number of the same staircase. Projected Area (Landing Width, Wall Width) (Landing Length, Wall Width) Number of Floors Number of the same staircase.

Canopy area (platform width, wall width) (platform length, wall width) number of floors, number of stairs of the same. 3. Calculation of the engineering quantity of the ladder beam: concrete volume Width of the ladder beam (height of the ladder beam Plate thickness) Length of the ladder beam Number of ladder beams The number of the same building section The number of the same stairs.

If you are calculating the amount of concrete, you can calculate the stair beams, stair slabs, stair slopes, and stair triangles separately.

If you want to calculate the amount of reinforcement, you can find the longitudinal reinforcement first, and then the plate reinforcement. After the calculation, * diameter * diameter = kg amount.

If you calculate the amount of formwork and scaffolding, you can only calculate the area and then allocate it to the spacing.

According to the provisions of the "Construction Engineering Consumption Standards", the overall staircase includes the rest platform, platform beam, diagonal beam and the connecting beam of the staircase, calculated according to the horizontal projection area, without deducting the stairwell with a width of less than 500mm, and the part extending into the wall is not additional.

The number of each level is from the lowest number to the highest level.

Here's how stairs are calculated in general:

1. Calculate the number of steps: first of all, you need to confirm the total height of the stairs and the height of each step, and then divide the total height by the height of each step to obtain the number of steps. For example, if the total height of the stairs is 300 cm and the height of each step is 15 cm, the number of steps is 20.

2. Calculate the step size and step depth: the step size refers to the length of each step, and the step depth defeat refers to the horizontal distance from the front of the step to the back edge. In general, in the case of rolling die trembling, the step length plus twice the step depth is equal to 600-650 mm, where the step length should be greater than or equal to 280 mm, and the step depth should be greater than or equal to 140 mm.

3. Calculate the slope and slope of the staircase: the slope of the stair refers to the inclination angle of the staircase, and the slope refers to the ratio of the height and step length of each step of the staircase. In general, the slope of the staircase should be between 30°45° and the slope should be between.

4. Calculate the width and height of the staircase: the width of the staircase should generally be more than 900 mm, and it needs to meet the requirements of the staircase passage. The height of the staircase should generally not exceed the meter, and if the meter is exceeded, a platform or a reversing platform needs to be installed. <>

To sum up, the calculation method of stairs involves the comprehensive consideration and design of multiple parameters, and reasonable calculation and design need to be carried out according to the specific situation to ensure the safety and comfort of the staircase.

The calculation of the staircase is as follows:

1. The calculation method of the volume of the staircase is round bird rolling: the volume is equal to the volume of the tread plus the volume of the floor slab. Railing Calculation Method:

Generally, it is calculated according to the length or weight, and the length of the railing is calculated according to the actual length measured in the year. Calculation method of stair side: the decoration area is equal to the side area of the tread plus the side area of the floor slab.

2. If you want to calculate the slope of the staircase, you need to calculate the inclination angle, and there are two ways to represent the slope, one is the angle method, for example, the slope of the staircase should be more than 23 degrees, but it cannot be higher than 45 degrees. Workers will generally arrange orange Yu at about 30 degrees during construction, because this angle is the most comfortable. If it is above 45 degrees, it is more difficult for people to climb the stairs.

3. If you want to calculate the size of the step, generally speaking, the width should be more than 250 mm, but not more than 320 mm, otherwise it will be too wide. The size of the tread can also be determined according to the relevant formula, for example, to know the height of the ground, but also to know the width.

4. Calculate the width of the staircase, according to the total number of people going up and down the stairs, as well as the requirements of fire protection. In the case of a dwelling, the width should be more than 1100 mm.

5. The height of the stair railing handrail ensures that people will not fall down when standing at the staircase, generally speaking, the height of the stair handrail should be about 900 mm, and if it is a stair handrail on the platform, the height can not be less than 1000 mm. As a place for children, such as the handrail of a kindergarten, it can be increased by 600 mm to ensure the safety of children.