再生砖粗骨料混凝土梁正截面承载力试验与分析  

Experiment and Analysis on Flexural Bearing Capacity of Recycled-brick Coarse Aggregate Concrete Beam

作　　者：季昌良[1] 翟爱良[1] 翟文举[1] 陈树建[1] 王纯合[1] 

机构地区：[1]山东农业大学水利土木工程学院,山东泰安271018

出　　处：《水利与建筑工程学报》2013年第4期72-76,共5页Journal of Water Resources and Architectural Engineering

基　　金：山东省自然科学基金项目(2009ZRB01879)

摘　　要：通过对具有相同强度等级的5根不同再生砖粗骨料替代率的再生砖粗骨料混凝土梁进行静力加载试验,分析其正截面受弯破坏过程,研究正截面承载力状况及再生砖粗骨料取代率对其承载力的影响。结果表明,再生砖粗骨料混凝土梁受力性能良好,与普通混凝土梁的受弯破坏过程相同。通过理论分析计算,提出了再生砖粗骨料混凝土梁正截面承载力计算公式。Through a static loading test for 5 recycled-brick coarse aggregate concrete beams with same axial compression strength but different replacement ratio,the bending failure process of every concrete beam is analyzed,and the flexural bearing capacity of normal section and the influence of recycled-brick coarse aggregate replacement ratio to the flexural bearing capacity are studied.The result shows that the recycled-brick coarse aggregate concrete beam has good mechanical properties,its bending failure process is similar to that of the natural aggregate concrete beam.Through theoretical analysis and calculation,the calculation formula related to the normal section’s bearing capacity of recycled-brick coarse aggregate concrete beams is put forward.

关 键 词：梁 正截面 受弯承载力 再生砖粗骨料 平截面假定 

分 类 号：TU502.6[建筑科学—建筑技术科学]