再生砖粗骨料混凝土梁抗弯性能试验研究  

Experimental study on flexural performance 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：《水利水运工程学报》2012年第6期59-64,共6页Hydro-Science and Engineering

基　　金：山东省自然科学基金项目(2009ZRB01879)

摘　　要：为研究再生砖粗骨料混凝土梁正截面受力特点和破坏特征,以及再生砖粗骨料取代率对再生砖粗骨料混凝土梁正截面抗弯性能的影响,对具有相同强度等级的5根不同再生粗骨料替代率的混凝土梁进行了静力加载试验,观察分析了每根梁的受弯破坏过程及裂缝发展状况.试验结果表明:再生砖粗骨料混凝土梁与普通混凝土梁的受弯破坏过程基本相同,且随着再生砖粗骨料取代率的增加,再生砖粗骨料混凝土梁的受力性能更加稳定,承载力也较高.说明再生砖粗骨料混凝土梁可应用于工程实践.In order to study the forced characteristics and destruction features of the normal section of recycled brick coarse aggregate concrete beams, and to analyze the influence of recycled coarse aggregate replacement ratio on the flexural properties of recycled brick coarse aggregate concrete beams, we designed and conducted the static loading tests using 5 recycled brick coarse aggregate concrete beams which had the same axial compressive strength but different replacement ratio of recycled coarse aggregate, and observed and analysed the bending failure process and cracks＇ developing of every concrete beam. The research results show that the bending failure process of the recycled brick coarse aggregate concrete beams are similar to the natural aggregate concrete beams, and that with the increase of recycled brick coarse aggregate content, the recycled brick coarse aggregate concrete beams＇ bearing performance becomes more stable, bearing capacity is also higher and the recycled brick coarse aggregate concrete beams have good mechanical properties and can be applied to engineering practice.

关 键 词：梁 正截面 抗弯性能 再生砖粗骨料 

分 类 号：TU528[建筑科学—建筑技术科学]