Approved Code of Practice for Cranes

Appendix D: Seismic requirements for the design of tower, portal and high pedestal cranes

Figure D1: Seismic design coefficient (rigid and intermediate subsoils)

Figure D1 shows a graph that displays three zone factors for crane use. It is expected that coefficient factor 1.2 will apply to most cranes except those designed for a specific function, at a permanent location, in zones that have a lower seismic level.

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