摘要
为研究新型槽口无粘结水平接缝(RUHC)剪力墙结构的变形性能,以有害层间位移角(HIDA)为控制指标,利用楼层转角法进行计算分析,同时与常规接缝(PJ)剪力墙结构、现浇(XJ)剪力墙结构展开比较,分析无粘结钢筋对HIDA的影响规律,进而提出拟合公式及设计建议。结果表明:3种结构的整体变形特征相近,在薄弱层以下区域,HIDA先增大后减小,但其占比逐渐减小;其中RUHC剪力墙结构的最大HIDA数值最大,PJ预制剪力墙结构次之,XJ剪力墙结构最小。相较于无粘结长度,无粘结度对HIDA的作用效应更为突出,建议将无粘结长度控制在500 mm以内,将无粘结度控制在0.73以内,最后确定该新型结构HIDA的控制阈值,旨在为工程设计提供参考依据。
In order to study the deformation ability of prefabricated shear wall structure with new rabbet and unbonded horizontal connection(RUHC),the harmful interlayer displacement angle(HIDA)was taken as the control index and calculated by the floor angle method,which was compared with the prefabricated shear wall structure with conventional connection(PJ)and cast-in-place(XJ)shear wall structure.The effect of unbonded reinforcement on HIDA was analyzed and the fitting formula was proposed.The results show that:the general deformation characteristics of the three structures are similar.Below the weak layer,HIDA of the three structures increase firstly and then decrease,but its proportion decreases gradually.The maximum HIDA of the RUHC shear wall structure is the largest,followed by that of the PJ shear wall structure,and the minimum is XJ shear wall structure.In comparison to the unbonded length,the unbonded level exerts a more pronounced effect on the HIDA.Based on this finding,it is recommended to limit the unbonded length to within 500 mm and the unbonded level to below 0.73.Subsequently,the control threshold for HIDA of this novel structure is determined,aiming to provide an effective reference for engineering design practices.
作者
孙崇芳
朱龙耀
王天洋
王光达
殷睿
刘玉虎
SUN Chong-fang;ZHU Long-yao;WANG Tian-yang;WANG Guang-da;YIN Rui;LIU Yu-hu(Key Laboratory of Building Structural Retrofitting and Underground Space Engineering(Shandong Jianzhu University),Ministry of Education,250101,Ji'nan,China;School of Civil Engineering,Shandong Jianzhu University,250101,Ji'nan,China;Tong Yuan Design Group Go.,Ltd.,250101,Ji'nan,China)
出处
《建筑技术》
2026年第2期229-232,共4页
Architecture Technology
基金
国家自然科学基金资助项目(51908336)
山东省重点研发计划(重大科技创新工程)项目(2021CXGC011204)。
关键词
预制剪力墙
槽口无粘结水平接缝
有害层间位移角
无粘结长度
无粘结度
precast shear wall
rabbet and unbonded horizontal connection
harmful interlayer displacement angle
unbonded length
unbonded level
