著者
称原 良一 南 宏一
出版者
日本建築学会
雑誌
日本建築学会構造系論文集 (ISSN:13404202)
巻号頁・発行日
vol.65, no.537, pp.135-140, 2000-11-30 (Released:2017-02-03)
参考文献数
3
被引用文献数
4 3

We've examined steel encased reinforced concrete buildings whose column bases were severely damaged due to 1995 Hyogo-ken Nanbu earthquake. We've deduced the tension force due to overturning moment has caused these damages through statistical analysis of the data. We've also proposed the models to estimate the shear coefficient C_B equivalent to the overturning strength of the building Those buildings which suffered severe damage at their column bases had C_B values less than 0.5 and/or had C_B value lower the shear coefficient C_O values which are estimated summing the shear strength of the columns and walls. Those buildings whose tensile strength of the column base overwhelms that of the column itself could also avoid the damage of the column base.
著者
若林 実 南 宏一 西村 泰志
出版者
京都大学防災研究所
雑誌
京都大学防災研究所年報 (ISSN:0386412X)
巻号頁・発行日
no.24, pp.p225-243, 1981-04

An experimental study is made to know the effect of working axial compression on the reductionof load carrying capacity of interior beam-to-column connection in steel reinforced concrete frames.Experimental variable is the ratio of applied axial compression to the ultimate compressive strength.Main discussion is concentrated on the shear strength, failure mechanism, strain history of webpanel and flange portion and hysteretic characteristics involved in the large deformation range undermonotonic and repeated loading. It is concluded that the load carrying capacity of beam-to-columnconnection that is supposed to fail in shear is hardly affected by magnitude of axial compressionon column