This standard applies to the design of steel structural parts of cranes (including mobile cranes) specified in JIS B 0146-1. However, if it can be proven by valid theory or experiment, it is not necessary to rely on the formulas and numerical values specified in this standard.
JIS B 8831:2004 history
2023JIS B 8831:2023 Cranes -- Design principles for loads and load combinations
2004JIS B 8831:2004 Cranes -- Design principles for loads and load combinations