钢纤维混凝土低剪力墙抗震性能试验研究
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摘要
对不同钢纤维体积率、相同钢纤维混凝土强度的5个钢筋钢纤维混凝土低剪力墙试件以及不同钢纤维混凝土强度、相同钢纤维体积率的2个钢筋钢纤维混凝土低剪力墙试件,进行了低周反复荷载作用下的试验研究,分析了剪力墙的延性、滞回性能和耗能能力等,研究了钢纤维体积率和钢纤维混凝土强度对钢筋钢纤维混凝土低剪力墙的延性及耗能能力的影响。试验和分析结果表明:掺加钢纤维的钢筋混凝土低剪力墙的延性、耗能能力都比普通钢筋混凝土低剪力墙明显提高,抗震性能良好。
With the low frequency cyclic loading,the experimental researches were carried out on 5 low-rise steel fiber reinforced concrete shear walls with the same concrete strength but different volume fractions of steel fibers and 2 low-rise steel fiber reinforced concrete shear walls with the same volume fraction of steel fibers but different concrete strengths.The ductility,hysteretic capacity,and energy dissipation of shear walls were analyzed.The effects of the volume fraction of steel fibers and concrete strength on the ductility and energy dissipation of shear walls were studied.The results indicate that compared to ordinary R.C.shear wall,the ductility,energy dissipation of steel fiber reinforced concrete low-rise shear walls were improved obviously,and steel fiber reinforced concrete low-rise shear walls have good seismic behavior.
With the low frequency cyclic loading,the experimental researches were carried out on 5 low-rise steel fiber reinforced concrete shear walls with the same concrete strength but different volume fractions of steel fibers and 2 low-rise steel fiber reinforced concrete shear walls with the same volume fraction of steel fibers but different concrete strengths.The ductility,hysteretic capacity,and energy dissipation of shear walls were analyzed.The effects of the volume fraction of steel fibers and concrete strength on the ductility and energy dissipation of shear walls were studied.The results indicate that compared to ordinary R.C.shear wall,the ductility,energy dissipation of steel fiber reinforced concrete low-rise shear walls were improved obviously,and steel fiber reinforced concrete low-rise shear walls have good seismic behavior.
引文
[1]GB 50010-2002混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.
[2]曹万林,张建伟,田宝发,等.带暗支撑低矮剪力墙抗震性能试验及承载力计算[J].土木工程学报,2004,37(3):44-51.
[3]Kwan A K H,Dai H,Cheng Y K.Non-linear seismic response of reinforced concrete slit shear walls[J].Journal of Sound and Vibration,1999,226(4):703-718
[4]Salonikios N,Kappos A J,Tegos I A,et al.Cyclic load behavior of low-slenderness reinforced concrete walls:Design basis and test results[J].ACI Structure Journal,1999,96(4):650-660.
[5]高丹盈,赵军,朱海堂.钢纤维混凝土设计与应用[M].北京:中国建筑工业出版社,2002.
[6]JGJ3-2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2002.
[7]JGJ101-96建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.
[8]李广山.改善混凝土剪力墙抗震性能的研究[J].地震工程与工程振动,2006,26(5):125-128.
[2]曹万林,张建伟,田宝发,等.带暗支撑低矮剪力墙抗震性能试验及承载力计算[J].土木工程学报,2004,37(3):44-51.
[3]Kwan A K H,Dai H,Cheng Y K.Non-linear seismic response of reinforced concrete slit shear walls[J].Journal of Sound and Vibration,1999,226(4):703-718
[4]Salonikios N,Kappos A J,Tegos I A,et al.Cyclic load behavior of low-slenderness reinforced concrete walls:Design basis and test results[J].ACI Structure Journal,1999,96(4):650-660.
[5]高丹盈,赵军,朱海堂.钢纤维混凝土设计与应用[M].北京:中国建筑工业出版社,2002.
[6]JGJ3-2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2002.
[7]JGJ101-96建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.
[8]李广山.改善混凝土剪力墙抗震性能的研究[J].地震工程与工程振动,2006,26(5):125-128.
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