加掺粉煤灰再生混凝土柱受压性能试验研究

Experimental study on compression performance of column made of recycled concrete with fly ash

通过普通混凝土柱、再生混凝土柱及加掺粉煤灰再生混凝土柱受压性能试验,研究了加掺粉煤灰再生混凝土柱承载力、应变及破坏特征,并把试验结果与采用GB 50010—2010《混凝土结构设计规范》中混凝土柱受压承载力计算公式计算的结果相比较,给出了加掺粉煤灰再生混凝土柱的设计建议。试验及分析结果表明,再生混凝土中加入适量粉煤灰,使再生混凝土柱具有较好的受力性能及变形能力,受压柱承载力可按GB 50010—2010《混凝土结构设计规范》中给出的相关公式进行计算。

From the tests of regular concrete column, recycled concrete column and column made of recycled concrete with fly ash, the compression resistance, strain and failure characteristics were studied. At the same time, the measured results of the specimens and theoretical results obtained from GB 50010-2010 `Code for design of concrete structures' were compared and analyzed. Design suggestion for columns made of recycled concrete with fly ash was given. The results show that column made of recycled concrete with fly ash has better mechanical behavior and deformation capacity, and its bearing capacity can be calculated based on the code GB 50010-2010. © 2016, Editorial Office of Journal of Building Structures. All right reserved.