Escalator support design criteria
Escalator support design criteria
(OP)
I am designing the structure to support an escalator in a shopping mall. Is there a code based allowable deflection criteria for the beams supporting escalators?
I have heard that the deflection of the supporting element should be limited to L/1666. However I can not find a reference.
Any help is appreciated.
I have heard that the deflection of the supporting element should be limited to L/1666. However I can not find a reference.
Any help is appreciated.






RE: Escalator support design criteria
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Escalator support design criteria
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Escalator support design criteria
RE: Escalator support design criteria
Ina document from Washington Metropolitan Area Transit Authority...
1.02 GENERAL DESCRIPTION OF ESCALATORS TO BE REPLACED
A. Structural requirements: Escalator truss structures shall be designed for a maximum deflection less than 1/1000 of the span between supports. Deflection calculations shall be based on the escalator component weights, including truss structure and truss cladding, combined with the passenger design load stipulated in this section.
RE: Escalator support design criteria
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.