Experimental Study on Seismic Behavior of Reinforced Concrete Core Wall

Abstract eng:
In order to further study the seismic behavior and influencing factors of reinforced concrete core wall, three reinforced concrete core wall models with large height-width ratio were built and tested to failure under the combined action of constant axial load and reversed cyclic lateral load. The axial compression ratio and span-depth ratio of coupling beam of each core wall were focused on. This paper presents the results, including failure mode, hysteretic behavior, load-carrying capacity, ductility, energy dissipation ability, shear lag effect. The final overall bending damage occurred at the bottom of each model. When the axial compression ratio increasing or span-depth ratio of coupling beam dropping, stiffness and load-carrying capacity of the specimen had risen markedly, but the ductility performance dropped significantly. It can be concluded from the analysis that the axial compression ratio and span-depth ratio of coupling beam both have important effects on the seismic behavior of reinforced concrete core wall. KEYWORDA: axial compression, coupling beam, load testing, seismic behavior, reinforced concrete core wall

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