摘要
为研究轻钢轻混凝土连梁的抗震性能,进行了4榀不同跨高比连梁的拟静力试验,研究其在水平往复荷载下的破坏机理、延性及耗能能力等。试验表明:试件的破坏模式随跨高比的增加由剪切破坏向受弯破坏转变;小跨高比连梁的受力机制可视为平面桁架,大跨高比连梁的受力机制类似普通框架梁。
In order to study the performance of the coupling beam which is composed of lightweight steel and expanded polystyrene(EPS)concrete,4 specimens with different span-to-depth ratio are tested under cyclic reversed loads,and the failure mode,ductility and energy dissipation of these coupling beams are analyzed.The test results indicate that the failure modes of these specimens change from shear failure to flexural failure with the increase of span-to-depth ratio.The loading mechanism of the coupling beam with small span-to-depth ratio can be regarded as plane truss,and the loading mechanism of the coupling beam with large span-to-depth ratio is similar to frame beam.
作者
谢靓宇
李东彬
权淳日
李伟龙
Xie Liangyu;Li Dongbin;Quan Chunri;Li Weilong(China Building Technique Group Co.Ltd,Beijing100013,China;Osaka Institute of Technology,Osaka535-8585,Japan)
出处
《建筑科学》
CSCD
北大核心
2019年第9期92-98,共7页
Building Science
基金
国家发改委建筑行业低碳技术创新及产业化示范工程项目(2013-1819)
轻钢轻混凝土结构住宅技术创新及产业化示范工程
关键词
轻钢轻混凝土结构
连梁
抗震性能
lightweight steel and lightweight concrete structure
coupling beam
seismic behavior
