Experiment and Numerical Simulation on Axial Compressive Performance of Autoclaved Fly Ash Solid Brick Masonry Columns

To study the influence of slenderness on the axial compressive performance of autoclaved fly ash solid brick masonry columns, compression experiments were conducted on 12 samples of autoclaved fly ash solid brick masonry column and 4 samples of fired clay brick masonry column. The damage patterns and compressive performance were compared and analyzed. The experimental results indicate that the compressive bearing capacity decreases as slenderness increases from 3 to 18, and the compressive bearing capacity of the autoclaved fly ash solid brick masonry columns is lower than that of the fired clay brick masonry columns. The formulae for the axial compressive bearing capacity of autoclaved fly ash solid brick masonry columns were derived based on the experiments. The nonlinear FEA program ANSYS was adopted to simulate the behaviors of masonry columns. By comparing the simulation results and experimental results, it is shown that the simulation results agree well with the experimental ones. The rationality and applicability of the simulation results were verified.

约束蒸压粉煤灰砖砌体结构抗震性能研究

研究了蒸压粉煤灰砖砌体结构抗震能力,采用非线性时程分析方法,分别对两栋典型的蒸压粉煤灰砖砌体结构进行了非线性地震反应分析,研究了在抗震设防"三水准"情况下结构的抗震能力。结果表明:在抗震设防烈度为7度和8度地区分别建造7层和6层约束蒸压粉煤灰砖砌体结构房屋,其抗震能力可以提高一度。