日本における超高層鉄筋コンクリート造建築物の構造特性の傾向

概要

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This paper presents studies of structural characteristics of high-rise RC buildings in Japan. The data on structural characteristics of 512 high-rise RC buildings designed from 1972 to 2006, for approximately 35 years, was collected. The buildings were classified into four periods, focusing on the development of structural techniques on high-rise RC buildings, and the data was analyzed. The following remarks have been found. 1) The strength of concrete and steel bars for structures increased with the times. As a result, the building height, aspect ratio and column supporting floor area increased. 2) The seismic isolated and controlled structural systems largely increased in number after the 1995 Kobe earthquake. 3) Recent high-rise RC buildings tend to use smaller design base shear coefficient than those of early stage. 4) The maximum response story drift angle and story ductility factor to maximum credible earthquake of level 2 have gradually increased with period, partly because the structural design conditions such as structural system and input motion level have been changed.
一般社団法人日本建築学会の論文
2009-03-27