The second generation of EN Eurocode standards is expected to be published between 2023 and 2026. These documents are being published as soon as they are available, to enable users to prepare for the transition from the first generation to second generation of Eurocodes. As set out in the National foreword of the BS EN second generation Eurocodes, UK adoptions of the first generation of Eurocodes will be withdrawn by BSI on 30 March 2028. That means there is a period of coexistence between 2023 and 2028 during which both first and second generation Eurocodes are available.
Until 30 March 2028, the first generation documents should be considered as the applicable standards for buildings and civil engineering works constructed in the UK unless otherwise specified by the relevant authority or in the specification for a particular project. While the use of provisions in second generation Eurocodes in conjunction with first generation Eurocodes is not precluded, it should be undertaken with care and should only be done when users are satisfied that it will not result in a lower level of reliability than the minimum level set in the first generation Eurocodes and associated UK National Annexes.
(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:
overhead travelling cranes, either:
top-mounted cranes;
underslung cranes;
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 to 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 (all parts) in general and for bridge and gantry cranes in EN 15011 in particular.
(1) Unless specifically stated, EN 1990‑1, EN 1991 (all parts)1 and EN 1993‑1 (all parts) apply.
(2) The design methods given in EN 1993‑6 are applicable if
the execution quality and tolerances are as specified in EN 1090‑2, and;
the construction materials and products used are as specified in the relevant parts of EN 1993, or in the relevant material and product specifications.
(3) Following interfaces between hoisting device and its supporting structure are assumed:
the top of crane rail for top-mounted cranes;
the top of flange on which the crane or hoist block operates for underslung cranes and monorail hoist blocks;
the support points as shown in Figure 1.1 for light crane systems.
EN 1993-6