According to building codes, in structural analysis of building frames, pattern loads must be arranged to give the most unfavorable internal forces. Especially, if the structural analyses of multistory structures are done according to this rule, hundreds of cases of pattern loading arrangements must be done. Even with the use of computers, this much of pattern loading arrangements is not practical and economical. Hence, in former studies, different pattern loading arrangements are proposed. Two well known important studies about pattern loading arrangements have been proposed by Prof. Richard...