Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/163482
Title: Experimental and numerical investigations of recycled aggregate concrete-filled stainless steel tube stub columns under combined compression and bending
Authors: Zhong, Yukai
Zhao, Ou
Young, Ben
Keywords: Engineering::Civil engineering
Issue Date: 2022
Source: Zhong, Y., Zhao, O. & Young, B. (2022). Experimental and numerical investigations of recycled aggregate concrete-filled stainless steel tube stub columns under combined compression and bending. Engineering Structures, 266, 114502-. https://dx.doi.org/10.1016/j.engstruct.2022.114502
Project: RG142/20
Journal: Engineering Structures
Abstract: This paper reports experimental and numerical investigations into the behaviour and resistance of recycled aggregate concrete-filled stainless steel tube stub columns under combined compression and bending. Eccentric compression tests were conducted on twelve stub column specimens fabricated from austenitic stainless steel tubes with two cross-section sizes and concretes with three recycled coarse aggregate replacement ratios (0%, 35% and 70%). The test results, including the failure loads, load–mid-height lateral deflection curves, evolution of neutral axis and confinement effect, were discussed in detail. The testing programme was followed by a numerical modelling programme, where finite element models were developed and validated against the test results and then used to perform parametric studies to generate further numerical data over a wide range of cross-section dimensions and loading combinations. Given that there are no existing design codes for recycled aggregate concrete–stainless steel composite structures, the relevant codified design rules for natural aggregate concrete filled-carbon steel tube stub columns under combined compression and bending, as set out in the European code, American specification and Australian/New Zealand standard, were evaluated for their applicability to recycled aggregate concrete filled-stainless steel tube stub columns, based on the test and numerical data. The evaluation results revealed that the European code and Australian/New Zealand standard generally provide an acceptable level of design accuracy, while the American specification yields unduly conservative failure load predictions.
URI: https://hdl.handle.net/10356/163482
ISSN: 0141-0296
DOI: 10.1016/j.engstruct.2022.114502
Rights: © 2022 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

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