玻璃细集料混凝土柱的抗震性能有限元分析  

Finite element analysis on seismic behavior of glass fine aggregate concrete columns

作　　者：王凤池[1] 郭昊 胡海明 张雨石 WANG Feng-chi;GUO Hao;HU Hai-ming;ZHANG Yu-shi(School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China;Shenyang Jianzhu University Library,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]沈阳建筑大学图书馆,辽宁沈阳110168

出　　处：《广西大学学报（自然科学版）》2021年第3期557-567,共11页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51578348);沈阳市科技计划项目(F12-173-9-00)。

摘　　要：为了研究骨料替代率、长细比、轴压比和偏心距等变化参数对玻璃集料混凝土柱的抗震性能影响,采用ABAQUS有限元分析软件创建21组玻璃集料混凝土柱模型,进行拟静力试验数值模拟;分析了各构件的滞回性能、水平承载力、延性、耗能及刚度退化情况。结果表明:各试件的滞回曲线均呈梭形且较为饱满;100%骨料替代下玻璃混凝土柱的抗震性能良好,与自然集料混凝土柱相近,且优于50%骨料替代下的玻璃混凝土柱;随轴压比的增加,构件承载力无明显变化,但能量耗散有小幅下降;随长细比增大,试件承载力及抗震性能明显降低;随偏心距增大,滞回曲线呈整体下移趋势,对能量耗散无明显影响。综上所述,细骨料替代率为100%时,废弃玻璃混凝土柱抗震性能良好,满足实际工程中抗震性能的要求。To study the influence of various parameters such as aggregate replacement ratio,slenderness ratio,axial compression ratio and eccentricity on the seismic behavior of glass aggregate concrete columns,ABAQUS finite element analysis software was used to create 21 groups of glass aggregate concrete column models and simulate the quasi-static test.The hysteretic behavior,bearing capacity,ductility,dissipation capacity and stiffness degradation of each component were analyzed.Research results indicate that the hysteresis curve of each test piece is shuttle-shaped and fuller.The seismic behavior of the glass concrete column with 100%of the fine aggregate substitution rate is similar to that of the ordinary concrete column,and better than 50%aggregate replacement of glass concrete column.With the increase of axial compression ratio,the bearing capacity of the member has no obvious change,but the energy dissipation decreases slightly.With the increase of the slenderness ratio,the bearing capacity and seismic behavior of the specimens have decreased.With the increase of eccentricity,the hysteresis curve decreases as a whole,but it has no significant effect on energy dissipation.To sum up,when the replacement rate of fine aggregate is 100%,the seismic behavior of waste glass concrete columns is good,which meets the requirements of seismic behavior in actual projects.

关 键 词：钢筋混凝土 再生玻璃砂 结构柱 有限元分析 拟静力试验 抗震性能 

分 类 号：TU528.57[建筑科学—建筑技术科学]