CAJ | 학술논문

进行了3个1:4缩尺的四层双肢剪力墙模型抗震性能的对比试验,连梁跨高比为1.5.模型1为普通混凝土双肢剪力墙,模型2为全再生混凝土双肢剪力墙,模型3为底部两层普通混凝土、上部两层再生混凝土双肢剪力墙.分析了各双肢剪力墙的承载力、延性、刚度、滞回特性、耗能及破坏特征.结果表明:与普通混凝土双肢剪力墙相比,全再生混凝土双肢剪力墙的抗震性能略差,底部两层普通混凝土、上部两层再生混凝土的双肢剪力墙与普通混凝土双肢剪力墙抗震性能接近.建立了再生混凝土双肢剪力墙的承载力计算模型,计算结果与试验结果吻合较好.
진행료3개1:4축척적사층쌍지전력장모형항진성능적대비시험,련량과고비위1.5.모형1위보통혼응토쌍지전력장,모형2위전재생혼응토쌍지전력장,모형3위저부량층보통혼응토、상부량층재생혼응토쌍지전력장.분석료각쌍지전력장적승재력、연성、강도、체회특성、모능급파배특정.결과표명:여보통혼응토쌍지전력장상비,전재생혼응토쌍지전력장적항진성능략차,저부량층보통혼응토、상부량층재생혼응토적쌍지전력장여보통혼응토쌍지전력장항진성능접근.건립료재생혼응토쌍지전력장적승재력계산모형,계산결과여시험결과문합교호.
A comparative study is conducted on the seismic behaviors of three 1/4 scale RC coupled shear wall models. The span-height-ratio of lintel beam of each set is 1.5. The first model is natural concrete coupled shear wall, the second is coupled shear wall with 100% replacement of recycled aggregate and the third is coupled shear wall with variable concrete along height. Based upon the experimental study,the stiffness and its degradation,load-carrying capacity, hysteretic behavior,ductility, energy dissipation and failure phenomena of each shear wall were analyzed. The calculation formulas of the bearing capacity for RC coupled shear wall were derived. From an experimental analysis,it is proved that compared to the RC coupled common walls,the recycled concrete shear walls show poorer performance and the shear walls with upper part using recycled concrete and lower part using natural concrete have the similar performance of common wall. The capacity models for recycled concrete coupled shear wall were also established. The calculation results of bearing capacity of the specimens agree well with the measured ones.