プレキャスト部材水平接合部の応力伝達に関する研究

概要

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The objective of this paper is to clarify the influence of vertical steel reinforcement on the horizontal joint of precast concrete members. This paper describes the experimental results of precast concrete members with horizontal joint tested for shear strength and slip behavior of vertical steel reinforcement. The parameters of the experimental program for the horizontal joint were (1) the vertical steel reinforcement ratio (Ph) of 0, 0.56, 0.88, 1.28 and 1.72% (2) axial loads of 0, 300 and 600kN respectively and (3) the interface of the bonding joint of concrete was normal (untreated), bondless (greased) and bonded with mortar respectively. All other conditions for the test specimens were kept constant. From the experimental results, all the specimens failed at the joints showing a slip behavior and the formation of plastic hinges by yielding of the vertical steel reinforcement. The yield strength of the specimens increases with the increase in the vertical steel reinforcement ratio and the axial load. However, the ultimate strength of the specimens is almost the same for the specimens exceeding a Ph ratio of 1.0 under the same test conditions. The yield strength and the slip displacement can be calculated by considering the plastic zone of vertical steel reinforcement and concrete.
一般社団法人日本建築学会の論文
2001-03-20