接合部パネルの剪断変形を考慮した撓角法

概要

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In the classical theory of the rigid frame, a joint of the framework is considered as a point and a member as a line. Namely the area of the joint is taken no account of. But the idealization is doubtful for the actual frame, especially for those of the wide flange members or of the lattice members. The joint must be regarded as a structural member which may be deformed as well as a beam or a column. The authors attach importance, in this paper, to the shear deformation of the joint panel, which has considerable effects on the sway of the frame. On the other hand the bending deformation of the panel is disregarded. The idealized model of the joint is defined as follows, the panel part in joint is enclosed with rigid members whose ends are hinged. At the same time, it is taken into consideration that the member of the framework might be deformed by bending moment and also shearing force. Consequently "the slope-deflection method taken account of the shear deformation of the joint panel" is derived in the elastic range. In several cases solved by this theory, the shear deformation of the joint panel occupies the fairly part, about 15 per cent, of the total sway. Compared this theory with the classical theory, it shows that with respect to the sway the classical theiry gives the value of about two third of that by the present one.
社団法人日本建築学会の論文
1964-08-30