GB/T 41680-2022 Cranes—Principles for seismically resistant design
GB/T 41680-2022 Cranes—Principles for seismically resistant design
Basic Information
Scope
This document specifies a general method for the seismic design of cranes, applicable to the calculation of seismic loads defined in ISO 8686 (all parts), the verification of the capacity of metal structures defined in ISO 20332, and the calculation of mechanical components and structures defined in ISO 4306 (all parts).
This document evaluates the dynamic response behavior of cranes subjected to seismic excitation - a function of the dynamic characteristics of the crane and its supporting structure. This evaluation not only considers the dynamic effects of cranes working on the ground under regional and local conditions, but also the working state of the crane and the damage caused to the crane by earthquakes.
This document is only applicable to the normal use limit state (SLS) where the stress is within the elastic range specified in ISO 20332.
This document is not applicable to capacity verification, including plastic deformation. If agreed upon by the crane supplier and user, reference may be made to other relevant standards or literature.