【作者】 晏石林； 余启明；

【Author】 Yan Shilin,Yu Qiming (School of Science,Wuhan University of Technology,Wuhan 430070)

【机构】 武汉理工大学理学院；

【摘要】 对呋喃树脂混凝土梁和FRP筋加强呋喃树脂混凝土梁的弯曲蠕变特性进行了四点弯曲试验,分别得到了梁在不同荷载水平作用下的蠕变曲线,对其黏弹性性质进行了分析,并利用各种模型对试验数据进行拟合,运用最小二乘法确定蠕变模型参数,分别建立了呋喃树脂混凝土梁和FRP筋加强呋喃树脂混凝土梁的弯曲蠕变幂律模型,Bruger模型和Kelvin-Bruger模型,结果表明Kelvin-Bruger模型能够与实测的结果相吻合,能为估计材料的长期力学性能提供依据。更多还原

【Abstract】 This paper presented some experiments and theoretical analysis about the bending and creep characteristic of non-FRP reinforced furan resin concrete beam and FRP reinforced furan concrete beam,and the creep curves are gained of the beams under different loads by four-point bending test method,and analysis is carried on the viscoelasticity nature,the result shows the creep model variables are determined through the least square method,the bending creep power law model、Bruger model and Kelvin-Bruger model are respectively built of non-FRP reinforced furan resin concrete beam and FRP reinforced furan concrete beam which is the basis of estimation of material’ s long term mechanics performance.更多还原