钢纤维掺量对活性粉末混凝土锚固性能试验研究  

Experimental Study of Content of Steel Fiber on Anchor Properties of Reactive Powder Concrete

作　　者：贾汝达[1] 

机构地区：[1]浙江工业职业技术学院,绍兴312069

出　　处：《混凝土与水泥制品》2016年第11期50-53,共4页China Concrete and Cement Products

基　　金：浙江省建设科研项目(2013Z104)

摘　　要：通过不同钢纤维掺量对不同锚固长度下的活性粉末混凝土进行黏结性能测试,得到钢纤维掺量和锚固长度的变化对黏结应力的影响结果,并对各种变量对其锚固应力的影响进行了分析。研究表明,随着钢纤维掺量的逐渐增加,黏结应力也逐渐增加,当钢纤维掺量为0.2%时,黏结强度增长趋势出现拐点,此时黏结强度和经济性均为最佳;随着锚固长度的增加,黏结强度逐渐降低;使用ABAQUS有限元模拟分析,得到混凝土内部受力状态与实际裂缝分布吻合。The bond performance of the reactive powder concrete was tested under the different dosage of steel fibre and different anchorage length, the results under the different dosage and anchorage length of steel fiber were gotten, the influence of various variables on the anchorage stress were analyzed. The results showed that, the bond stress increases gradually with the increase of steel fiber content, when the steel fiber content is 0.2%, the growth trend of bond strength has an inflection point, the bond strength and economy are the best. With the increase of anchorage length, bond strength decreased gradually. By using ABAQUS finite element simulation analysis, the inside stress which was consistent with the actual fracture distribution was gotten.

关 键 词：钢纤维 活性粉末混凝土 黏结应力 锚固长度 有限元模拟 

分 类 号：TU528.572[建筑科学—建筑技术科学]