蒸压粉煤灰砖砌体本构关系试验与模拟  

Experiment and simulation for constitutive relationship of autoclaved fly ash brick masonry

作　　者：徐春一[1,2] 刘明[2] 王强[2] 

机构地区：[1]大连理工大学建设工程学部,辽宁大连116023 [2]沈阳建筑大学土木工程学院,沈阳110168

出　　处：《沈阳工业大学学报》2012年第4期474-480,共7页Journal of Shenyang University of Technology

基　　金：国家十一五科技支撑计划资助项目(2008BAJ08B11-03)

摘　　要：为研究蒸压粉煤灰砖砌体受压本构关系,对18个蒸压粉煤灰实心砖砌体试件进行轴心受压试验,研究试件的受力状况及其应力应变关系曲线.以试验测得曲线为基础,与数值模拟数据相结合,并与国内外已有研究成果进行综合比较分析,给出蒸压粉煤灰砖砌体的本构关系建议表达式.将所得表达式代入ANSYS有限元分析软件中模拟砌体偏心受压力学性能,并将模拟值与试验值进行比较分析,验证了所得本构关系表达式的正确性.To clarify the constitutive relationship of autoclaved fly ash brick masonry subjected to compression, the axial compression tests for 18 autoclaved fly ash solid brick masonry samples were performed, and the force states and stress-strain curves of the samples were studied. Based on the measured curves, and through combining with the numerically simulated data and comprehensively comparing with the existing research results, the suggested formulas for the constitutive relationship of autoclaved fly ash brick masonry were given. The obtained formulas were substituted into ANSYS finite element analysis software to simulate the mechanical properties of the masonry subjected to eccentric compression. The simulated and experimental results were compared. The correctness of the attained expression formulas for the constitutive relationship is verified.

关 键 词：砌体 蒸压粉煤灰砖 轴心受压 本构关系 有限元分析 数值模拟 

分 类 号：TU317[建筑科学—结构工程] TU362