玄武岩纤维布约束混凝土方柱的尺寸效应研究  

Size effect on square section column concrete confined with basalt fiber sheets

作　　者：童谷生[1] 刘永胜[1] 吴秋兰[1] 

机构地区：[1]华东交通大学土木建筑学院,江西南昌330013

出　　处：《混凝土》2009年第3期6-8,共3页Concrete

基　　金：江西省自然科学基金(0650015);铁路环境振动与噪声教育部工程研究中心开放基金

摘　　要：开展了不同尺寸几何形状相似的玄武岩纤维布约束素混凝土方柱的抗压试验,得到了各试件的抗压强度。试验结果表明试件的抗压强度存在明显的尺寸效应,且随着纤维约束层数的增加,尺寸效应愈明显。最后在试验结果的基础上提出了考虑尺寸效应影响的纤维约束混凝土试件的强度模型,改进后的模型值与试验结果吻合较好。The compressive experiments of square section columns concrete confined with the basalt fiber sheets with different size and similar geometric shapes were conducted and the strengths of the specimens were measured.The experimental results show that the specimens have size effect distinctly and it is more obvious as the confining layer increasing.Finally, the strength model of the size effect of the fiber-confined concrete was modified according to the experimental results.

关 键 词：玄武岩纤维布 方柱 尺寸效应 强度模型 

分 类 号：TU528.571[建筑科学—建筑技术科学]