摘要
为验证棉花秸秆砌块与框格间的协同工作能力,制作1榀内填棉花秸秆砌块材料的1∶2比例生态复合墙体模型进行伪静力抗震试验,研究内填棉花秸秆砌块生态复合墙体在低周反复荷载作用下的受力特点和破坏机制,并与内填加气混凝土砌块生态复合墙体的承载力、滞回特性、延性、强度退化、刚度退化等抗震性能进行对比。结果表明:棉花秸秆砌块与框格在弹性阶段协同工作性能较好,在弹塑性阶段较差;墙体发生强柱弱板剪切型破坏;内填棉花秸秆砌块生态复合墙体的抗倒塌能力较强。
To verify the performance of the collaborative work of the cotton straw block and frame, a pseudo-static seismic experimental study was conducted on the main failure process and loading characteristics of ecological composite walls filled with cotton stalk blocks with a ratio of 1 ： 2 under low cyclic loading. The seismic behaviors of the ecological composite wall were compared with those of the composite wall filled with aerated concrete blocks in terms of bearing capacity, hysteresis loop behavior, ductility, and degradations of strength and stiffness. The results show that the performance of the collaborative work of the cotton straw block and frame was good in the elastic stage and bad in the elastic-plastic stage, a shear failure of the strong column and weak plate occurred in the composite wall, and the ecological composite wall filled with a cotton stalk block had a strong ability to resist collapse.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第3期247-252,共6页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金(11242007)
教育部科学技术研究重点项目(212194)
新疆维吾尔自治区高等学校科研计划(XJEDU2011S13)
关键词
棉花秸秆
生态复合墙体
模型试验
协同工作
抗震性能
cotton stalk
ecological composite wall
model experiment
collaborative work
seismic behavior
