加气混凝土承重墙抗震性能试验与有限元分析
发布时间：2018-09-07 08:58
【摘要】：在加气混凝土墙体抗震性能试验基础上,采用有限元软件ABAQUS对加气混凝土承重墙进行分离式建模计算,并通过spring2连接来考虑砌块与粘结剂滑移关系,并将承载力-位移曲线结果与加气混凝土承重墙体试验曲线进行对比,在初步验证模拟可行的情况下,进行参数分析来研究垂直正应力、砌块强度、粘结剂强度等参数变化对墙体承载力、变形能力的影响,研究得出轴压比在0.15-0.33间,墙片破坏形式为剪压破坏;砌块强度的变化对墙片水平承载能力的影响较为明显;而粘结剂强度的增加,对墙片水平承载能力的影响不明显,但有可能降低墙片在极限荷载下的水平位移,上述研究成果为加气混凝土承重墙进一步试验研究与抗震计算提供必要依据。
[Abstract]:On the basis of seismic performance test of aerated concrete wall, the finite element software ABAQUS is used to model and calculate separately the aerated concrete bearing wall, and the slip relationship between block and binder is considered by spring2 connection. The results of load-displacement curve are compared with the test curve of aerated concrete load-bearing wall. When the simulation is feasible, the vertical normal stress and block strength are studied by parameter analysis. The influence of bond strength and other parameters on the bearing capacity and deformation capacity of the wall is studied. The results show that the axial compression ratio is between 0.15-0.33, the failure form of the wall is shear compression failure, the influence of the change of the strength of the block on the horizontal bearing capacity of the wall is obvious. However, the increase of the strength of binder has little effect on the horizontal load-carrying capacity of the wall, but it may reduce the horizontal displacement of the wall under the ultimate load. The above research results provide necessary basis for further experimental study and seismic calculation of aerated concrete bearing walls.
【作者单位】： 同济大学结构工程与防灾研究所;
【分类号】：TU37;TU352.11
[Abstract]:On the basis of seismic performance test of aerated concrete wall, the finite element software ABAQUS is used to model and calculate separately the aerated concrete bearing wall, and the slip relationship between block and binder is considered by spring2 connection. The results of load-displacement curve are compared with the test curve of aerated concrete load-bearing wall. When the simulation is feasible, the vertical normal stress and block strength are studied by parameter analysis. The influence of bond strength and other parameters on the bearing capacity and deformation capacity of the wall is studied. The results show that the axial compression ratio is between 0.15-0.33, the failure form of the wall is shear compression failure, the influence of the change of the strength of the block on the horizontal bearing capacity of the wall is obvious. However, the increase of the strength of binder has little effect on the horizontal load-carrying capacity of the wall, but it may reduce the horizontal displacement of the wall under the ultimate load. The above research results provide necessary basis for further experimental study and seismic calculation of aerated concrete bearing walls.
【作者单位】： 同济大学结构工程与防灾研究所;
【分类号】：TU37;TU352.11
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