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6Šª
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1982”N
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1073-1080•Å
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PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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ASHOK K. JAIN
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INELASTIC SEISMIC RESPONSE OF BRACED STEEL FRAMES
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Inelastic seismic response of a six-story three bay diamondbraced frame and a K-braced frame due to first ten seconds of the 1967 Koyna earthquake is studied in this paper. The effect of using moment-resistant connections or pin-connections with girders in the outer unbraced bays and,hence the interaction between the outer bays and inner bay is considered. The hysteresis behaviour of steel bracing members was represented by a buckling model which is based It is concluded that interaction results on experimental results. in lesser ductility requirement in girders. It is also noticed that K-braced frames are better than diamond braced frames.
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