In order to clarify some concept difference of frame overturning moment and to give a reasonable calculation method for each of them,the unified solution method was summarized to calculate the overturning moment of frames,braces,frames+braces,partial frames or partial frames+braces,and the corresponding mechanics method was given.The significant difference between the frame overturning moment and the frame bearing overturning moment was pointed out,the similarities and differences between them,as well as the calculating principle of the frame bearing overturning moment in a building structure were given,and the method of calculating the frame bearing overturning moment was given further,that is,the modified unified solution method.The modified unified solution is applicable to general building structures and structures with vertical member transitions,as well as to frame-tube structures with outriggers.Finally,the calculation and analysis of the frame bearing overturning moment of typical structural example were carried out,the results are reasonable and feasible.
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