崩壊に至る復元力特性による地震応答性状

概要

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Recent experimental tests indicate the following notable results Aseismic elements with little shear-span-ratio, say less than 2, would collupse brittlely under the high compressive stress While when the axial compressive stress is less and the member is slender, the elements with sufficient shear reinforcements could show not a little ductility The structures which consist of both above mentioned aseismic element, i e high strength but brittle and poor strength but ductile, would undergo failure at the brittle elements first And at this very instance, the restoring force would drop down abruptly Subsequently, the structural failure should proceed gradually to the ultimate collupse having the ductile elements resist the external force In such circumstances, the restoring force charactistics of the structures would show very complicated aspects due to the many way of combinations and arrangements of these aseimic element In this report, the various effects of the restoring force characterstics (for wide range from small displacement region to the ultimate collupse) upon the earthquake response behaviours of one mass systems will be outlined by utilizing the artifically generated earthquake ground motions Especially the probability of collupse and the maximum response values will be observed concerning the property of the SKELETON CURVES
1976-12-01