粉煤灰砖砌体轴压本构关系试验研究  

Experimental Study on Compression Constitutive Behavior of Fly Ash Brick Masonry

作　　者：杨卫忠[1] 曹文文[1] 王茜[1] 

机构地区：[1]郑州大学土木工程学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2012年第6期117-120,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省基础与前沿技术研究计划资助项目(112300410242)

摘　　要：对粉煤灰砖砌体试件进行了受压全曲线试验研究,研究了其强度、破坏形态、应力-应变曲线等特征,考虑了不同砂浆强度的影响,并与普通砖砌体试验的结果进行了对比,结果表明,粉煤灰砖砌体的轴压性能与普通砖砌体类似,采用普通试验机并辅以刚性元件,能测得受压应力-应变全曲线,基于细观损伤建立的本构关系则能较好地预测其应力响应.An experimental study of the axial compression constitutive behavior of brick masonry with fly ash has been performed using prism specimens subjected to axial compression.Loading through a testing machine under the force control with added stiffness elements is used to get the complete stress-strain curve.The main test results including failure modes,strength and curves of stress-strain are given and discussed.Its compression constitutive behavior is similar to that of brick masonry.It is found that the predictive results of stress-strain agree well with experiments based on existing meso-damage constitutive relation.

关 键 词：粉煤灰砖砌体 强度 本构关系 受压 

分 类 号：TU362[建筑科学—结构工程]