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Achtung: Steigung!Ramp calculation

 

Determining the inclination is a very special factor. Because the inclination of a ramp and the required ramp length are based on different factors:

  • Does the person operate the wheelchair on
    his own or is it pushed by a companion?
  • How strong are the persons?
  • What is the load the ramp must support?
  • How high is the step or sill?
  • How much space is available?

 

The requirements of a ramp are described in detail in DIN 18040. The most important factor in this regard is the inclination of a ramp, which should normally not exceed 6%.

Problem:

This naturally presupposes a corresponding ramp length. A ramp length which however, is frequently not available in the required form.

Lösungsansatz:

Assuming that the wheelchair is pushed by a companion, or an electric drive is available, the length of the ramp can also be shorter.

In this connection, the following inclination values have proved to be meaningful in practice:

Self-operated: 6 %
A strong self-operator: 7 % - 10 %
A person pushes a rollator: max. 12 %
A weak person pushes a wheelchair: max. 12 %
A strong person pushes a wheelchair: 13 % - 19 %
Electrical drive: ca. 20 %

 When exceeding an incline of 20%, safe movement can no longer be guaranteed. There is a risk that the wheelchair may tip over, or that the footrests touch the ground. Ramps in public areas must always be implemented in accordance with DIN norms.
Therefore, please check your requirements thoroughly in advance. Only a properly chosen incline guarantees proper daily functioning of the ramp later.


Skizze der Möglichen Steigungen

 

 

 

 

 

Wie groß muss eine Rampe sein?Aussenrampe mit Podest 1


The step height to overcome is the most important measure for finding the optimal solution. Please, at first, keep yourself to the heights of the steps during the calculation. After that, you can choose the necessary inclination.


With these data you can calculate the necessary length of the ramp by using the formulas and examples below.

 

Erklärung der Strecken




Berechnung der Länge
Berechnung der Steigung
Berechnung der Höhe
 Formel für die Länge    Formel für die Steigung    Formel für die Höhe
Beispiel: Die Treppe hat zwei Stufen à 18 cm = 36 cm Gesamthöhe. Die Steigung soll 12 % betragen.   Beispiel: Die Stufe hat eine Höhe von 8 cm. Die Rampe soll 70 cm lang werden.   Beispiel: Die Rampe ist 150 cm lang. Die Steigung soll 12 % betragen.
Formel für die Länge    Formel für die Steigung    Formel für die Höhe 

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