湖南大学学报（自然科学版）2025，Vol.52Issue(7)：10-23,14.DOI:10.16339/j.cnki.hdxbzkb.2025063
栓钉连接双钢板-再生混凝土组合剪力墙抗震性能试验研究
Seismic Performance Tests and Numerical Analysis of Recycled Aggregate Concrete-filled Double Steel Plate Composite Shear Walls with Studs
摘要
Abstract
To study the seismic performance of double steel plates and recycled concrete composite shear walls,three groups of quasi-static loading tests with varying shear-to-span ratios were designed and completed.A numerical model was established based on these experiments to investigate the impact of recycled aggregate replacement rate and concrete strength on seismic performance.The test results indicated that the buckling phenomenon predominantly took place at the bottom of the specimens for the structural steel plates,and the shear-to-span ratio emerged as a critical factor influencing the structural failure.As the shear-to-span ratio increased,the failure mode of the specimens transitioned from shear failure to flexural failure,accompanied by noticeable bolt traces on the surface of the steel plates.As the shear-to-span ratio was increased from 1 to 1.5 and 2,the ultimate load was decreased by 25.9%and 45.0%,respectively,while the displacement ductility coefficient was increased by 9.2%and 29.7%,and the equivalent viscous damping coefficient was increased by 26.0%and 89.3%.Each specimen exhibited a failure displacement angle ranging from 1/63 to 1/45,satisfying the seismic design code requirements and demonstrating excellent deformation performance.Numerical simulations demonstrated that enhancing the strength grade of recycled concrete can significantly enhance the initial lateral stiffness and ultimate bearing capacity of the specimens.Both reducing the axial compression ratio and augmenting the strength of the external steel plates can enhance the shear capacity and lateral stiffness of the specimens.By considering the synergistic effects of concrete and steel plates and aligning with the existing design codes,a composite shear wall calculation formula was proposed,incorporating an 8%～15%redundancy factor to ensure conservative and reasonable calculation outcomes.关键词
结构工程/结构设计/抗震性能/栓钉连接/混凝土掺料/数值分析Key words
structural engineering/structure design/seismic performance/studs connection/concrete aggre-gates/numerical analysis分类
建筑与水利引用本文复制引用
韦芳芳,陈卓然,华子伟,李丽萍..栓钉连接双钢板-再生混凝土组合剪力墙抗震性能试验研究[J].湖南大学学报（自然科学版）,2025,52(7):10-23,14.基金项目
国家自然科学基金资助项目(51608168),National Natural Science Foundation of China(51608168) （51608168）
中央高校基本科研业务费专项资金资助项目(B200202091),Fundamental Research Funds for the Central University(B200202091) （B200202091）
