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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Recent Japanese Developments in Earthquake Resistant Design of Reinforced Concrete Buildings
Author(s): H. Aoyama and S. Otani
Publication: Special Publication
Appears on pages(s): 49-76
Keywords: buildings; damage; ductility; earthquake resistant
structures; earthquakes; evaluation; hysteresis; models; rein-forced
concrete; shear properties; structural analysis; structural
Abstract:Each damaging earthquake produces certain aftershocks to earthquake engineering and research communities. The 1968 Tokachi-Oki earthquake triggered a series of research works in Japan. One significant accomplishment is the development of the methods to evaluate the earthquake resisting capacity of buildings. This paper describes a three-level procedure for existing low- to medium-rise (up to six stories high) reinforced concrete bui ldings. The higher is the level of procedure, the more complicated is the analysis, and the more reliable is the result. The earthquake resisting capacity is evaluated by the strength and ductility of an earthquake resisting elements. The strength and ductility of different types of elements were formu-lated on the basis of statistically analyzed experimental data and engineering judgements. The sequence of failure from stiff brittle elements to flexible ductile elements are taken into consideration. A good correlation was observed between the calculated capacity indeces and degrees of observed earthquake damage.
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