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基于绿色环保,变废为宝的理念,本文采用大型有限元软件ABAQUS模拟分析了方钢管再生混凝土短柱核心混凝土的抗拉本构关系。研究表明:在三向压力作用下再生粗骨料混凝土的应力-应变本构关系与普通混凝土的类似,随再生粗骨料取代率的增大,其峰值应力降低,相应应变增大。
Based on the concept of green environmental protection and turning waste into treasure, this paper uses ABAQUS, a large-scale finite element software, to simulate and analyze the tension constitutive relations of the concrete filled square steel tube recycled concrete short columns. The results show that the stress-strain constitutive relation of recycled coarse aggregate concrete under three-way pressure is similar to that of ordinary concrete. With the increase of replacement rate of recycled coarse aggregate, the peak stress decreases and the corresponding strain increases.