7th International Conference on Coupled Instabilities in Metal Structures
巻, 号, ページ
No. 16
pp. 1 - 18
出版年月
2016年11月
出版者
和文:
英文:
会議名称
和文:
英文:
7th International Conference on Coupled Instabilities in Metal Structures
開催地
和文:
メリーランド州，ボルチモア
英文:
Baltimore, Maryland
アブストラクト
A light gauge built-up compression member jointed by self-drilling screws is used for a vertical frame of a shear wall of a Steel Framed Housing. When seismic load subjects to the Steel Framed Housing, the rotational moment will subject to the shear wall. Then, panels (i.e. structural plywood or plaster board) will peel off from the frame. Due to peeling off the panels, there is a possibility that flexural buckling will occur at the vertical frame. The light gauge built-up compression member is designed by a design formula which is specified in Design Standard for Steel Structures in Japan at the moment. However, it is doubtful whether that the design formula can calculate the buckling strength of the light gauge built-up compression member accurately because the design formula which is based on Bleich’s assumption is applied for heavy section. In addition, the moment distribution of the built-up compression member at the maximum strength is not confirmed by testing. In this paper, two types of full-scale testing were conducted. First, to examine the bending moment distribution of the light gauge built-up compression member, the experiment using the batten type light gauge built-up compression member was conducted. Secondly, to examine the buckling stress of the light gauge built-up compression member jointed by self-drilling screws, the experiment using the light gauge built-up compression member jointed by self-drilling screws was conducted. Finally, a modified effective slenderness ratio which is based on theoretical dynamic model is proposed. A different method is applied to derive the modified effective slenderness ratio from Bleich’s method.
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