Effect of different types of aggregates on the performance of concrete-filled steel tubular stub columns
作者： Xin Yu , Zhong Tao , Tian-Yi Song
DOI: 10.1617/S11527-015-0742-Z
关键词: Structural engineering 、 Composite number 、 Stub (electronics) 、 Finite element method 、 Solid mechanics 、 Axial compression 、 Cement 、 Eurocode 、 Materials science 、 Composite material
摘要: This paper presents a series of tests on concrete-filled steel tubular (CFST) stub columns under axial compression. Five different concrete mixes with the same cement content and water/cement ratio were designed using normal limestone aggregate, lightweight slag, waste glass. The influence aggregate type failure modes, development lateral strains, strength ductility CFST is discussed. experimental results demonstrate feasibility slag and/or glass to replace partial or all aggregates; novel composite have similar in some cases even better structural behaviour compared columns. test are predictions Eurocode 4 finite element analysis, agreement between them reasonable.
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