摘要
为了研究一字形短肢剪力墙的抗震性能,对其进行了低周反复荷载试验研究。设计制作6片不同轴压比(0.3、0.5、0.7分别制作二组)和3片不同配筋方式的一字形短肢剪力墙模型及试验加载装置,对9片剪力墙进行了抗震性能试验。基于试验结果,对试件的破坏形态、滞回性能、位移延性、耗能能力、刚度退化等方面进行了分析,结果表明:轴压比对一字形短肢剪力墙的抗震性能影响较大,随着轴压比的增大,试件表现出明显的脆性破坏;配有X型交叉筋的短肢剪力墙的裂缝分布均匀,承载能力较高,延性较好。提出了一字形短肢剪力墙一般应采用带暗柱及X形交叉配筋形式并严格控制轴压比限值等建议。
In order to investigate the seismic performance of rectangular SPW, six models of different axial compression ratios （0.3,0.5 and 0.7 ） and three models of different reinforcement layout pattern of the rectangular SPW and a set of test facility are designed and the models are tested under quasi-static, reversed cyclic horizontal loads. Based on the experimental results, seismic performance of the rectangular SPW such as failure pattern, failure mechanism, characteristic loads, ductility, rigidity degeneration and energy dissipation etc. were investigated. The results show that axial compression ratio has an obvious effect on seismic behavior of the rectangular SPW, with the increase in axial compression ratio, the model reflected obviously brittle failure characteristics. The rectangular SPW with crossed reinforcing bars has the characteristics of even crack distribution, higher bearing capacity and large ductility. The paper proposes that the concealed column and crossed reinforcing bars should be planted at the rectangular SPW, and the limit value of axial compression ratio should be strictly controlled.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2008年第4期81-88,共8页
Journal of Building Structures
基金
国家自然科学基金资助项目(50678040)
建设部科技攻关项目(02-2-1.25)
广东省建设厅项目(粤建科函[2003]91号)
广州市建设科技项目(穗建技[2001]365号)
关键词
短肢剪力墙
轴压比
试验研究
滞回曲线
抗震性能
short-pier shear wall
axial compression ratio
test research
hysteretic curve
seismic performance
