It is generally knQwn that sum of seismic energy inputted into a building is governed mainly by primary natural period and total mass of 仁 he building . It is very cost effective in aseismic design of a building to design a structural frame as a flexural system of which each story is designed to be lnjured during an earthquake to a same extent , thus securing effective energy absorption capac − ity of the system as a whole . In this paper, super ・ high tensile steel braced frames proposed by

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... hors are compared in terms of energy absorption capac 正 ty with ord 【nary rigid frames by conducting incremental analyses and experiments . As a resutt , the braced frames are proved to be effective aseismic frames .