再生混凝土高剪力墙抗震性能试验研究
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摘要
再生混凝土剪力墙适用于多层住宅结构。为了研究再生混凝土剪力墙和再生混凝土带暗支撑剪力墙的抗震性能,进行了5个剪跨比为2.0的高剪力墙的低周反复荷载试验研究。试验模型包括:1个用作比较的普通混凝土高剪力墙,3个再生混凝土高剪力墙,1个再生混凝土带暗支撑高剪力墙。分析了其承载力、刚度及其退化过程、耗能、延性、破坏特征和破坏机制等。试验表明:与普通混凝土高剪力墙相比,再生混凝土高剪力墙的抗震性能略差;随着再生骨料掺量的增加,再生混凝土高剪力墙的抗震性能呈下降趋势;这种再生混凝土高剪力墙,经过合理设计可以满足多层剪力墙住宅结构抗震要求。
RC shear wall with recycled concrete is applicable for multistory residence building.Low-cyclic reversed loading tests on seismic performance of five high-rise shear walls with shear-span ratio 2.0 have been carried out,including one normal high-rise RC shear wall,three high-rise RC shear walls with recycled aggregate concrete and one high-rise RC shear wall with recycled aggregate concrete and concealed bracing.Based upon the experimental study,the seismic performance of the high-rise RC shear wall with recycled aggregate concrete and the function of the concealed bracing have been studied.The structural stiffness and its deterioration process,bearing capacity,energy dissipation,ductility,failure feature and failure mechanism are analyzed systematically.Experiments indicate that compared to the high-rise RC common wall,RC shear wall with recycled aggregate concrete show poorer performance,and the more of the coarse aggregate replacement,the poorer the performance of the recycled aggregate concrete shear wall,but it is still able to satisfy anti-seismic requirements through rational design.
RC shear wall with recycled concrete is applicable for multistory residence building.Low-cyclic reversed loading tests on seismic performance of five high-rise shear walls with shear-span ratio 2.0 have been carried out,including one normal high-rise RC shear wall,three high-rise RC shear walls with recycled aggregate concrete and one high-rise RC shear wall with recycled aggregate concrete and concealed bracing.Based upon the experimental study,the seismic performance of the high-rise RC shear wall with recycled aggregate concrete and the function of the concealed bracing have been studied.The structural stiffness and its deterioration process,bearing capacity,energy dissipation,ductility,failure feature and failure mechanism are analyzed systematically.Experiments indicate that compared to the high-rise RC common wall,RC shear wall with recycled aggregate concrete show poorer performance,and the more of the coarse aggregate replacement,the poorer the performance of the recycled aggregate concrete shear wall,but it is still able to satisfy anti-seismic requirements through rational design.
引文
[1]肖建庄,李佳彬,兰阳.再生混凝土技术研究最新进展与评述[J].混凝土,2003,(10):17-20.
[2]肖建庄,李佳彬,孙振平.回弹法检测再生混凝土抗压强度研究[J].四川建筑科学研究,2004,(4):51-54.
[3]潘文浩,孙小巍,何苗.再生混凝土力学性能的实验研究[J].科技信息,2007,(20):409-410.
[4]Sonobe M.Shear characteristic of RC beam with recyeled coarse aggregate[C].Kanto Brance:Proceeding of the25th JSCE Annual Meeting,1998:912-913.
[5]曹万林,张建伟,田宝发,等.钢筋混凝土带暗支撑中高剪力墙抗震性能试验研究[J].建筑结构学报,2002,23(6):26-32.
[6]张建伟,曹万林,徐金荣,等.底部带暗支撑中高剪力墙抗震性能试验及承载力计算[J].世界地震工程,2002,18(1):41-45.
[7]曹万林,杨兴民,黄选明,等.钢筋混凝土带暗支撑一字形截面短肢剪力墙抗震性能试验研究[J].世界地震工程,2004,20(4):30-35.
[8]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.
[9]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[10]GB50010-2002,混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.
[2]肖建庄,李佳彬,孙振平.回弹法检测再生混凝土抗压强度研究[J].四川建筑科学研究,2004,(4):51-54.
[3]潘文浩,孙小巍,何苗.再生混凝土力学性能的实验研究[J].科技信息,2007,(20):409-410.
[4]Sonobe M.Shear characteristic of RC beam with recyeled coarse aggregate[C].Kanto Brance:Proceeding of the25th JSCE Annual Meeting,1998:912-913.
[5]曹万林,张建伟,田宝发,等.钢筋混凝土带暗支撑中高剪力墙抗震性能试验研究[J].建筑结构学报,2002,23(6):26-32.
[6]张建伟,曹万林,徐金荣,等.底部带暗支撑中高剪力墙抗震性能试验及承载力计算[J].世界地震工程,2002,18(1):41-45.
[7]曹万林,杨兴民,黄选明,等.钢筋混凝土带暗支撑一字形截面短肢剪力墙抗震性能试验研究[J].世界地震工程,2004,20(4):30-35.
[8]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.
[9]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[10]GB50010-2002,混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.
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