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基于构件荷载-变形曲线的约束混凝土本构模型对比分析 被引量:1

Comparative study of confined concrete models based on load-deformation curves of reinforced concrete member
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摘要 对16根钢筋混凝土圆柱进行了低周反复荷载试验,并采用6个不同的约束混凝土应力-应变模型对试件骨架曲线进行了计算。分析表明,尽管所选的约束混凝土应力-应变模型的差别很大,但利用不同的模型计算的柱荷载-变形曲线差别不大,与试验得到的荷载-变形曲线差别也不是很大,差别主要反映在曲线的下降段;在所选取的6个约束混凝土应力-应变关系模型中,采用Mander-Priestley模型和Fafitis-Shah模型计算的荷载-变形曲线与本文试验结果符合最好。 Cyclic loading tests were carried out on sixteen circular RC columns and the load-deformation curves of these columns were calculated using the chose six different stress-strain models of confined concrete. The results show that although the difference among the individual confined concrete models are remarkable, but their influence on load-deformation curves of column are unapparent and the discrepancy is on the descending branch of load-deformation curves. In the chose six stress-strain models of confined concrete, the prediction of load-deformation curves of column based on Mander-Priestley model and Fafitis-Shah model show satisfactory agreement with the experimental results.
作者 杨利 贡金鑫
出处 《四川建筑科学研究》 北大核心 2015年第2期1-5,共5页 Sichuan Building Science
基金 国家自然科学基金项目(51278081)
关键词 圆柱 抗震 约束混凝土 荷载-变形曲线 circular column seismic confined concrete load-deformation curve
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参考文献12

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二级参考文献2

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