IDAC were required by Nexus to carry out an FE analysis to determine the stress levels and fatigue life of 2 step designs, in accordance with BS EN 115: 1995. Finite element analyses were performed to test the escalator steps under a range of working loads, including passenger and torsional loading. Fatigue assessments were then carried out.
The following load and support cases were modelled:
01. Concentrated load static test (level supports)
02.Concentrated load static test (supports inclined at 30º)
03.Distributed load static test
04.Concentrated dynamic test (supports inclined at 30º)
05.Torsional dynamic test
06.Vandal load test using level support