鉄筋コンクリート部材のせん断力伝達機構に関する実験研究

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The seismic properties of reinforced concrete members have been increasing elucidated while the shear transfer mechanism has not yet been grasped. The shear failure of reinforced concrete members is a complex phenomenon influenced by a diversity of factors, and this is one of the reasons that a number of experiments carried out to date were unable to fully grasp the phenomenon of the shear failure of the reinforced concrete members. As it is impossible to assess all phenomena of shear failure only by experiments, the results of an experiment must be recorded accurately and carefully to create an adequate model for analyses. This paper discusses in detail the results of experiments on reinforced concrete members subjected to shear force which monotonously increases under a constant axial load. The shear reinforcement ratio and the degree of compressive axial force are used as parameters. The paper concludes as described in the subsequent paragraphs. 1) With a diagonal shear crack occurring in a reinforced concrete member, the concrete element is almost unable to transfer the shear force, which shear reinforcement is able to. 2) The magnitude of shear force transferred by the shear reinforcement is affected by that of the axial force, and the ultimate shear strength is largely affected by the axial force. 3) Photographing facilitates the measurement of two-dimensional deformation as well as that of the deformation in the vicinity of a crack which cannot be predicted before experiment.
社団法人日本建築学会の論文
1990-09-30

鉄筋コンクリート部材のせん断力伝達機構に関する実験研究

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