摘要
以闭口型板肋布置方式和墙体厚度为变化参数,对6个闭口型压型钢板混凝土组合剪力墙在轴压荷载作用下的基本力学性能进行了试验研究,并对试验中观测到的试件变形发展过程、破坏模式、承载力和刚度变化进行了分析。结果表明:压型钢板板带在峰值荷载前发生弹性局部屈曲,墙体在轴压荷载作用下发生钢板屈曲后的压溃破坏;闭口型压型钢板板肋在混凝土中具有较好的嵌固作用,能够与混凝土协同工作,并对内填混凝土起到一定的约束作用。在此基础上提出了考虑压型钢板板带局部屈曲的闭口型压型钢板混凝土组合剪力墙轴压承载力计算公式。
In order to investigate the mechanical behavior of dove-tail-shaped profiled steel concrete composite shear walls(DSCWs) under compression, six DSCW specimens were tested under axial compression loads, the deformation behavior, failure modes, bearing capacity and stiffness changes were investigated. The testing results indicate that the failure process of all six specimens is beginning from steel sheet elastic local buckling and ending with the cross-sectional squash. The steel and concrete are able to working together to sustain extra loading. The reason is that the slab steel ribs act as good anchors on the concrete. At the same time, the profiled sheet exerts some confinement effect on the core concrete. Based on the above analysis, a simplified formula for calculating the axial compressive strength of DSCWs was suggested by considering the influence of local buckling of profiled steel sheet.
作者
黄真锋
孙志雄
张素梅
郭兰慧
陈杰
HUANG Zhenfeng;SUN Zhixiong;ZHANG Sumei;GUO Lanhui;CHEN Jie(School of Civil and Environmental Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,China;Key Lab of Structures Dynamic Behavior and Control of China Ministry of Education,Harbin Institute of Technology,Harbin 150090,China)
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2019年第S01期84-90,共7页
Journal of Building Structures
基金
国家重点研发计划“绿色建筑及建筑工业化”重点专项(2016YFC0701201)
国家自然科学基金面上项目(51278019)
深圳高层次人才科研启动项目.
关键词
闭口型压型钢板
组合剪力墙
静载试验
弹性局部屈曲
轴压性能
dove-tail-shaped profiled steel sheet
composite shear wall
static test
elastic local buckling
axial compressive behavior
