(1 北京建筑大学土木与交通工程学院, 北京 100044; 2 北京建筑大学大型多功能振动台阵实验室, 北京 100044; 3 北京市建筑设计研究院有限公司, 北京 100045;4 江苏力汇振控科技有限公司, 南京 210008)

摘要: 以位于 8 度区(0. 30g)的某 13 层 RC 框架-剪力墙结构作为研究对象,基于《建筑抗震韧性评价标准》 (GB/T 38591—2020),对其减震前后的抗震韧性水准进行了对比分析. 结果表明:结构在减震前的抗震韧性等级为零星,修复时间控制了韧性等级,加速度敏感型非结构构件的修复费用主导了总修复费用,结构构件的修复时间主导了总修复时间;采用黏滞阻尼器减震技术后,结构在大震下最大层间位移角和楼面绝对加速度峰值分别降低了23. 5%和 16. 8%; 结构构件的损伤得到控制,从而有效控制了结构构件的修复时间,结构抗震韧性等级提升至一星. 虽然减震后的楼面绝对加速度也得到了较好的控制,但仍高于加速度敏感型非结构构件的损伤阈值,导致减震前后该类构件的修复时间和修复费用变化不大.

关键词: 高烈度区; RC 框架-剪力墙结构; 黏滞阻尼器; 减震结构; 损伤阈值; 抗震韧性评价

中图分类号:TU375 文献标志码:A 文章编号:1002-848X(2023)03-0034-07

DOI:10. 19701 / j. jzjg. 20211140

Comparative study on seismic resilience of a RC frame-shear wall structure before and after seismic reduction in high seismic region

XIE Linlin1,2, XU Tianci1,2, AN Nan1,2, LIU Qianmin3, WANG Xinyu1,2, LI Wei4

(1 School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing100044, China; 2 Multi-Functional Shaking Tables Laboratory, Beijing University of Civil Engineering andArchitecture, Beijing 100044, China; 3 Beijing Institute of Architectural Design, Beijing 100045, China;4 Jiangsu Forceset Vibration Control Technology Co. , Ltd. , Nanjing 210008, China)

Abstract: A RC frame-shear wall structure with 13 stories located in the 8 degree ( 0. 30g) region was selected as theresearch object, based on Standard for seismic resilience assessment of buildings ( GB/ T 38591—2020 ), the seismicresilience level of the structure before and after seismic reduction were compared and analyzed. The results indicate that theseismic resilience level of the structure before seismic reduction is zero star. The resilience level is controlled by repairtime, the repair cost of acceleration-sensitive non-structural components (ASNSCs) dominates the total repair cost, therepair time of structural components dominates the total repair time. After using the viscous damper seismic reductiontechnology, the maximum inter-story drift angle and floor absolute acceleration peak value of the structure under rareearthquake are reduced by 23. 5% and 16. 8% respectively. The damage of structural components is controlled, so that therepair time of structural members is effectively controlled, and the seismic resilience level of the structure is improved toone star. Although the floor absolute acceleration after seismic reduction is also well controlled, it remains much larger thanthe damage threshold of ASNSCs, resulting in slight change of the repair time and repair cost of such components before andafter seismic reduction.

Keywords:high seismic region; RC frame-shear wall structure; viscous damper; seismic reduction structure; damagethreshold; seismic resilience assessment

∗国家自然科学基金(52178268),建大英才项目(JDYC20200306).

第一作者:解琳琳,博士,教授,主要从事高层减隔震和地震韧性研究,Email: xielinlin@ bucea. edu. cn.

[引用本文] 解琳琳,许天赐,安楠,等. 高烈度区某 RC 框架-剪力墙结构减震前后抗震韧性对比研究[J]. 建筑结构,2023,53(3):34-40. XIE Linlin,XU Tianci,AN Nan,et al. Comparative study on seismic resilience of a RC frame-shearwall structure before and after seismic reduction in high seismic region[J]. Building Structure,2023,53(3):34-40.