(1 同济大学土木工程学院建筑工程系, 上海 200092; 2 中国建筑第八工程局第二建设有限公司, 济南 250014; 3 中国建筑股份有限公司, 北京 100029)

摘要: 竖向分布筋不连接装配整体式剪力墙(SGBL 装配整体式剪力墙)特点包括:剪力墙中竖向分布钢筋在楼层处断开连接,两端边缘构件采用现浇做法同时加大主筋配筋,因此 SGBL 装配整体式剪力墙内部不需要采用传统的装配整体式剪力墙竖向钢筋连接方式,极大提高了施工效率. 以某实际工程为研究对象,通过 ETABS 软件对SGBL 装配整体式剪力墙结构模型开展动力弹塑性时程分析,验证了 SGBL 装配整体式剪力墙结构在大震作用下的抗震安全性. 不同地震工况分析结果表明,罕遇地震工况下模型层间位移角满足弹塑性层间位移角 1 / 120 限值要求,SGBL 装配整体式剪力墙结构模型底部坐浆层保持完好,满足安全性能要求.

关键词: SGBL 装配整体式剪力墙; 抗震性能; 竖向分布钢筋不连接; 实际工程; 弹塑性时程分析

中图分类号:TU318 文献标志码:A 文章编号:1002-848X(2023)05-0019-05

DOI:10. 19701 / j. jzjg. 20221430

Elastic-plastic time-history analysis of monolithic assembled concrete shear wall structure with non-connected vertical distribution reinforcement

DING Tao1, XIAO Jianzhuang1, CAO Zhiwei1,2, FANG Haibo2, ZHU Tong3

(1 Department of Structural Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China;2 The Second Construction Limited Company of China Construction Eighth Engineering Division, Jinan 250014, China;3 China State Construction Engineering Co. , Ltd. , Beijing 100029, China)

Abstract: The characteristics of the monolithic assembled concrete shear wall structure with non-connected verticaldistribution reinforcement (SGBL monolithic assembly shear wall) include that the vertical distribution reinforcements areunconnected at the floor, the boundary elements at both ends are cast-in-situ and the main reinforcement is increased at thesame time. Therefore, SGBL monolithic assembly shear wall structure does not need to adopt the vertical reinforcementconnection mode of traditional monolithic assembled concrete shear wall structure, which greatly improves the constructionefficiency. Taking a practical engineering as the research object, the dynamic elastic-plastic time-history analysis of SGBLmonolithic assembly shear wall structure model was carried out by ETABS software, and the seismic safety of SGBLmonolithic assembly shear wall structure under rare earthquakes was verified. The analysis results under different seismicaction conditions show that the model interlayer displacement angle meets the 1 / 120 limit value of elastic-plastic interlayerdisplacement angle under rare earthquakes, and the bed-mortar connection layer of SGBL monolithic assembly shear wallstructure model remains intact, meeting the safety performance requirements.

Keywords: SGBL monolithic assembled shear wall; seismic performance; non-connected vertical distributionreinforcement; practical engineering; elastic-plastic time-history analysis

∗山东省重点研发计划课题:绿色智能建造和建筑工业化关键技术与成套设备(2021CXGC011205).

第一作者:丁陶,博士,副教授,主要从事绿色建造方面的研究工作,Email: tding@ tongji. edu. cn.

[引用本文] 丁陶,肖建庄,曹志伟,等. 竖向分布钢筋不连接装配整体式剪力墙结构弹塑性时程分析[ J]. 建筑结构,2023, 53 ( 5): 19-23. DING Tao, XIAO Jianzhuang, CAO Zhiwei, et al. Elastic-plastic time-history analysis ofmonolithic assembled concrete shear wall structure with non-connected vertical distribution reinforcement [ J]. BuildingStructure,2023,53(5):19-23.