鋼管柱接合部の強度・剛性に関する研究 : 接合部におけるスチフナーリングの弾塑性性状

概要

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Presented in this paper is the study on the most suitable shape of the stiffner ring in the corner connection subjected to the long sustained loading. Further, the difference of stress distribution in the stiffner ring between the concrete-filled column and the hollow one is investigated. From the results of this study, the following conclusions can be drawn. 1. The stiffner ring (as shown in Type 3 in Fig. 2), with the straight boudary inclined at an angle of 45°to the direction of beam, is small in area and has a Sharp notch in the reentrant corner, and so the marked stress concentration arises there. This type of stiffner, therefor, is inferior in strength and stiffness to those with are boundary or straight boudary at an angle of 30°to the direction of beam (Type 1 and 2 in Fig 2). 2. The approximate analytical solution for the stress in stiffner rings, applicable to both solid column and hollow one, is attained by eq. 2. 3. A remarkable increase in strength and stiffness of the connections is observed for the colum filled with concrete. This is due to the restriction of the deformation in steel pipe by the concrete.
社団法人日本建築学会の論文
1967-02-28