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低周反复扭矩下再生混凝土受扭构件抗震性能试验研究
引用本文:王晓菡,柳炳康,周徽,秦一如.低周反复扭矩下再生混凝土受扭构件抗震性能试验研究[J].地震工程与工程振动,2012,32(1):62-67.
作者姓名:王晓菡  柳炳康  周徽  秦一如
作者单位:1. 合肥工业大学土木与水利工程学院,安徽合肥230009;江南大学环境与土木工程学院,江苏无锡214122
2. 合肥工业大学土木与水利工程学院,安徽合肥,230009
3. 无锡市建筑设计研究院有限责任公司,江苏无锡,214001
基金项目:安徽省自然科学基金项目(090414163);江南大学环境与土木工程学院院长基金项目(yzjj1101)
摘    要:通过对两根再生混凝土试件(再生骨料替代率为100%)在低周反复纯扭荷载作用下的抗震性能试验,对再生混凝土纯扭试件的破坏形态、滞回曲线、骨架曲线、延性、耗能能力等进行了分析。研究表明,再生混凝土受扭试件在低周反复扭矩作用下滞回环呈反S形,延性系数在3.67~4.14之间,具有良好的抗震性能。结合混凝土结构设计规范推导了抗扭承载力的计算公式,其计算值与试验值符合较好,具有一定的参考价值。

关 键 词:再生混凝土受扭构件  低周反复扭矩  滞回性能  刚度退化

Study on seismic behavior of recycled concrete members subjected to reversed torsion
WANG Xiaohan , LIU Bingkang , ZHOU Hui , QIN Yiru.Study on seismic behavior of recycled concrete members subjected to reversed torsion[J].Earthquake Engineering and Engineering Vibration,2012,32(1):62-67.
Authors:WANG Xiaohan  LIU Bingkang  ZHOU Hui  QIN Yiru
Institution:1.College of Civil Engineering,Hefei University of Technology,Hefei 230009,China;2.College of Environmental and Civil Engineering, Jiangnan University,Wuxi 214122,China;3.Wuxi Architectural Design & Research Institute Co.,Ltd,Wuxi 214001,China)
Abstract:A study is conducted on the seismic behavior of two recycled concrete members with 100% recycled coarse aggregate under the low frequency reversed torsion.The seismic behavior of recycled concrete members such as failure features,hysteresis loops,ductility,degeneration of strength and stiffness and energy dissipation under seismic loads are investigated.The test and analyses show that the recycled concrete member can be used to structures because of its good seismic behavior.The formula for calculating the torsional capacity of members made of recycled aggregate concrete is proposed.The predictions of the formula agree well with the experimental results.
Keywords:recycled aggregate concrete torsional member  low frequency reversed torsion  seismic behavior  stiffness deterioration
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