Experimental cyclic response of rubberised concrete-filled steel tubes
نویسندگان
چکیده
This paper examines the behaviour of circular steel tubes infilled with concrete incorporating recycled rubber particles. The rubberised concrete-filled are tested under lateral cyclic deformations and without co-existing axial loading. A detailed account tests on twelve specimens is provided together complementary material section tests. replacement ratio varied up to a relatively high value 60%, loads reaching 30% nominal capacity. Hollow members also for comparison purposes. experimental results discussed in detail respect member stiffness, capacity, ductility, energy dissipation failure mechanisms. Although ratios lead considerable loss strength, test show that corresponding reduction capacity much less significant due contribution tube comparatively confinement effects mobilised within concrete. In normal concrete, found exhibit about 10% 17% increase ductility dissipation, respectively, depending content. Analytical treatments then used suggest simplified relationships predicting moment-axial strength interaction, plastic hinge length local criteria. Overall, demonstrate favourable inelastic performance provide valuable data. proposed expressions key response parameters offer basis developing practical assessment design methods.
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ژورنال
عنوان ژورنال: Journal of Constructional Steel Research
سال: 2022
ISSN: ['0143-974X', '1873-5983']
DOI: https://doi.org/10.1016/j.jcsr.2022.107622