緊張アラミド繊維ベルトで補強されたRC柱のせん断・曲げ挙動に関する正負繰り返し非線形解析

概要

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This paper can be considered as a companion of the paper in which a new nonlinear analysis using fiber model was established. The flexural and shear behavior of RC columns retrofitted by pre-tensioned aramid fiber belts are investigated by a macro modelling nonlinear analysis with a flexibility based formulation. The flexural effects are obtained investigating the nonlinear curvature distribution among several monitoring sections along column axis. The nonlinear shear effects are due to a monotonic shear force-distortion relation with a hysteretic model. In accordance with fiber concept the uniaxial material hysteretic constitutive laws and external force diagrams are being satisfied during analysis. The results of cyclic loading tests of four specimens are compared with the analytical simulations. The analytical results agree well with those of cyclic loading tests. In order to discover more features of the suggested nonlinear cyclic fiber model, the contribution of flexure and shear in total hysteretic behavior besides analytical curvature distribution in selected RC column specimens are investigated in this paper.
2005-01-30