| 较小剪跨比轻钢-尾砂微晶发泡板组合墙抗震性能试验 |
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| 引用本文： | 曹万林,李浩,乔崎云,董宏英,边瑾靓.较小剪跨比轻钢-尾砂微晶发泡板组合墙抗震性能试验[J].地震工程与工程振动,2020(1):80-87. |
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| 作者姓名： | 曹万林 李浩 乔崎云 董宏英 边瑾靓 |
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| 作者单位： | 北京工业大学城市与工程安全减灾教育部重点实验室 |
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| 基金项目： | 国家重点研发计划项目(2018YFD1100903)~~ |
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| 摘 要： | 提出了一种轻钢-尾砂微晶发泡板组合墙结构,首次进行了4个较小剪跨比轻钢-尾砂微晶发泡板组合墙试件的低周反复荷载试验,试件区分在于尾砂微晶发泡板强度、龙骨间是否填充砌块及有无拼接板缝。分析了各试件的强度、刚度、延性、滞回特性、耗能能力及破坏特征。研究结果表明:轻钢与尾砂微晶发泡板具有良好的共同工作性能;弹性阶段尾砂微晶发泡板呈剪切变形,且其变形发展受轻钢龙骨和镶嵌的分布钢筋制约;尾砂微晶发泡板强度可以明显提高结构的承载力;构件拼缝对结构的承载力有降低作用;轻钢龙骨间填充轻质砌块可显著提高其抗震性能。
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| 关 键 词： | 尾砂微晶发泡板 轻钢龙骨 组合墙 抗震性能 低周反复荷载试验 |
Seismic performance test of small shear span ratio light steel-tail sand microcrystalline foam board composite wall |
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| CAO Wanlin,LI Hao,QIAO Qiyun,DONG Hongying,BIAN Jinliang.Seismic performance test of small shear span ratio light steel-tail sand microcrystalline foam board composite wall[J].Earthquake Engineering and Engineering Vibration,2020(1):80-87. |
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| Authors: | CAO Wanlin LI Hao QIAO Qiyun DONG Hongying BIAN Jinliang |
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| Institution: | (Key Lab of Urban Security and Disaster Engineering(Beijing University of Technology),Ministry of Education,Beijing 100124.China) |
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| Abstract: | A light steel-tail sand microcrystalline foam board composite wall structure was proposed.The low-cycle repeated load test of four small shear-to-span light steel-tail sand microcrystalline foam board composite wall specimens was carried out for the first time.The difference between the pieces is the strength of the tailings microcrystalline foaming board,whether the keel is filled with blocks and whether there are splicing slats.The strength,stiffness,ductility,hysteresis characteristics,energy dissipation capacity and failure characteristics of each test piece were analyzed.The results show that the light steel and tailings microcrystalline foaming board have good working performance;the elastic phase tailings microcrystalline foaming board is shear deformation,and its deformation development is restricted by the light steel keel and the inlaid distribution steel;The strength of the tailings microcrystalline foaming board can significantly improve the bearing capacity of the structure;the joints of the components can reduce the bearing capacity of the structure;The steel keel filled with lightweight blocks can significantly improve its seismic performance. |
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| Keywords: | tailings microcrystalline foam board light steel keel composite wall seismic performance low cycle repeated load test |
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