Table 4 Calculation of the loads to be applied to each part.

From: Experimental study and finite element analysis of heavy-duty escalator truss under full load conditions

Item

Value

Standard requirements (Sr)

5000 N/m2

Horizontal span (Hs)

18,700 mm

Nominal width (Nw)

1000 mm

Step depth (Sd)

400 mm

Each weight (Ew)

20 kg

Gravitational acceleration (g)

9.8 m/s2

Total weight to be applied (Tw)

9540 kg

The length of horizontal steps and floor plates on the left side of the step working point 1 (Ll)

3950 mm

Number of weights on the left side of the step working point 1 (Nl = Sr * Ll * Nw/g/Ew)

101

The length of horizontal steps and floor plates on the right side of the step working point 2 (Lr)

5450 mm

Number of weights on the right side of the step working point 2 (Nr = Sr * Lr * Nw/g/Ew)

139

Horizontal projection length between the step working points (Hp = Hs-Ll-Lr)

9300 mm

Number of weights between the step working points (Nb = Sr * Hp * Nw/g/Ew)

237

The actual step depth between the step working points (Sad)

346.41 mm

Number of steps between the step working points (Nss = Hp/Sad)

27

Number of weights on each step between the step working points (Ne = Sr * Hp * Nw/g/Ew/Nss)

9