冻融作用下高性能混凝土损伤评价方法研究  

STUDY ON THE DAMAGE EVALUATION METHOD OF HIGH PERFORMANCE CONCRETE UNDER FREEZE-THAW ACTION

作　　者：刘良林[1] 李久明[1] 欧阳鹭霞[1] 龚昕[1] 

机构地区：[1]井冈山大学建筑工程学院,江西吉安343009

出　　处：《井冈山大学学报（自然科学版）》2016年第4期68-71,共4页Journal of Jinggangshan University (Natural Science)

基　　金：江西省教育厅科技计划项目(GJJ14563);井冈山大学科研基金项目(JZ1306)

摘　　要：针对使用寿命预测模型的缺失性,研究冻融作用下高性能混凝土的使用寿命计算方法。结合工程实际情况,建议了高性能混凝土使用寿命的取值。从损伤的角度,进行了基于使用寿命的高性能混凝土损伤评价方法的探讨与分析,并建立了新的损伤评价模型与评价准则。基于已有的试验数据进行分析,结果展示了新的损伤评价方法的可行性和正确性。这一结果,为实际当中的高性能混凝土的使用寿命设计提供了参考。Aimed to the lack of prediction model for service life, we have studied on the computational method of the high performance under freeze-thaw action. Combined with the actual situation, the value of service life is advised for the high performance concrete. From the perspective of damage, the method of damage evaluation is discussed and analyzed on the service life of high performance concrete. Furthermore, a new model and rule of damage evaluation is built. On the basis of analyzing from established test data, the result shows clearly that the new method of damage evaluation is feasibility and validity, which will supply a reference to the design of service life for the high performance concrete in practice.

关 键 词：冻融作用 高性能混凝土 使用寿命 损伤 损伤评价 

分 类 号：TU318[建筑科学—结构工程]