Scope of prEN 1993-6

(1) EN 1993-6 provides rules for structural design of crane supporting structures.

(2) EN 1993-6 is applicable to crane supporting structures, especially to indoor and outdoor overhead crane runway beams, of:

a) overhead travelling cranes, either:

— top-mounted cranes;

— underslung cranes;

b) monorail hoist blocks.

NOTE The principles of the design rules can be applied to supporting structures of other types of cranes making due allowance for differences in the crane-induced actions, if exist. For example, the design rules for supporting structures of the cranes listed in (2) assume that the horizontal crane loads occur randomly scattered along the runways in general. This assumption does not apply to other cranes such as travelling wall jib cranes.

(3) EN 1993-6 does not apply to the tracks and suspensions of light crane systems conforming with EN 16851, see Figure 1.1.

NOTE The standardized tracks and suspensions of light crane systems are considered as parts of the crane.

(4) Additional rules are given for ancillary runway items including crane rails, structural end stops, surge connectors and surge girders and for runway supporting structures.

(5) EN 1993-6 does not apply to cranes and all other moving parts.

NOTE Provisions for cranes are given in EN 13001 series.