摘要
在高强混凝土中引入阻尼器,制备出了具有阻尼功能的高强混凝土,并对该混凝土在振动荷载作用下的弯曲疲劳性能进行了研究.结果表明:与同强度等级的普通高强混凝土相比,具有阻尼功能的高强混凝土抗疲劳性能明显提高;随着振动疲劳荷载增加,具有阻尼功能的高强混凝土寿命明显降低且近似服从两参数威布尔分布.在试验基础上,建立了具有阻尼功能的高强混凝土在不同失效概率条件下的振动疲劳寿命预测方程.
The damping and high strength concrete（DHSC） was prepared by introduction of dampers into high strength concrete. And the vibration fatigue performance of DHSC was studied under vibration loads. The results indicate that, compared with the same strength grade normal concrete, the fatigue life of DHSC could be enhanced remarkably. The fatigue life of concrete obviously reduces with the increase of vibration fatigue load, and obeys two parameter Weibull distribution approximately. As a result, the vibration fatigue life forecast equations of DHSC are established under the different failure probability conditions.
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2009年第3期328-331,共4页
Journal of Building Materials
基金
国家自然科学基金资助项目(50572077)
关键词
阻尼
高强混凝土
疲劳寿命
damping
high strengh concrete
fatigue life
