摘要
为拓展开孔板(perfobond leiste,PBL)剪力连接键的应用范围,该文设计了1个型钢混凝土组合剪力墙试件和4个PBL键钢芯板混凝土组合剪力墙试件,进行低周往复加载试验,系统研究各试件的破坏机制和抗震性能。研究结果表明,剪力墙在水平荷载作用下的破坏模式可分为弯曲破坏和弯剪破坏两类。墙体高宽比、钢芯板配置及PBL键的布置方式是影响破坏模式的重要因素。PBL键可确保钢芯板与混凝土协同工作性能完好,此外增设钢芯板可提高墙体的承载能力。剪力墙的承载力随高宽比的增大而减小,PBL键竖向布置优于PBL键横向布置。基于欧洲规范EN 1994-1-1:2004中建议的型钢混凝土柱压弯承载力设计方法,提出了PBL键钢芯板混凝土组合剪力墙的压弯承载力设计公式。经过对比验证,设计公式可准确计算大高宽比试件的压弯承载力。
In order to expand the application of perfobond leiste(PBL)shear connectors,the low-cycle reciprocating loading tests were conducted on one steel reinforced concrete composite shear wall and four steel plate concrete composite shear walls with PBL shear connectors.The failure mechanism and seismic performance of the specimens were studied.The results show that the failure modes of shear walls under horizontal loads can be divided into two types including bending failure and bending-shear failure.The aspect ratio of the walls,the configuration of steel core plates and the arrangement of the PBL shear connectors are important factors affecting failure modes.PBL shear connectors can facilitate steel core plates working well with the concrete.Besides,the configuration of steel core plates can improve the bearing capacity of the walls.The bearing capacity of shear walls decreases with the increase of aspect ratios,and the vertical arrangement of PBL shear connectors is better than the horizontal arrangement of PBL shear connectors.Based on the design of compression-bending capacity of steel reinforced concrete columns recommended in EN 1994-1-1:2004,a design formula of compression-bending capacity for steel plate concrete composite shear walls with PBL shear connectors is proposed.It is verified that the design formula can accurately calculate the compression-bending capacity of the shear walls with large aspect ratios by comparison.
作者
涂庭婷
吴函恒
王辰
党世杰
隋璐
TU Tingting;WU Hanheng;WANG Chen;DANG Shijie;SUI Lu(School of Civil Engineering,Chang’an University,Xi’an 710061,China;Shaanxi Railway Institute,Weinan 714000,China)
出处
《地震工程与工程振动》
北大核心
2025年第4期200-212,共13页
Earthquake Engineering and Engineering Dynamics
基金
陕西省自然科学基础研究计划项目(2023-JC-YB-295)
中央高校基本科研业务费专项资金项目(300102282204,300102282718)。
关键词
钢-混凝土组合结构
组合剪力墙
PBL剪力键
低周往复加载试验
承载力设计方法
steel-concrete composite structure
composite shear walls
PBL shear connector
low-cycle reciprocating loading test
bearing capacity design method
