河北工业科技2026，Vol.43Issue(1)：28-39,12.DOI:10.7535/hbgykj.2026yx01004
端部内置钢管双钢板-RPC剪力墙抗震性能分析
Seismic performance analysis of double steel plate-RPC shear walls with end-embedded steel tubes
摘要
Abstract
In order to address issues such as concrete crushing at the ends,significant stiffness degradation,and insufficient ductility in traditional double steel plate concrete composite shear walls under seismic action,round steel tubes were embedded at the ends of the walls.The steel tubes effectively constrained the core reactive powder concrete(RPC).Using steel tube strength(Q235,Q355,Q390,Q420),steel tube outer diameter(140,152,168,180 mm),and steel plate strength(Q235,Q355,Q390,Q420)as control parameters,11 groups of specimens were designed.Finite element models were established using ABAQUS software,and validation analyses were conducted on similar double steel plate concrete(RPC)composite shear walls.The simulation results were compared with the experimental results to verify their rationality.Based on the validation results,the bearing capacity,deformation capacity,ductility,stiffness degradation,and energy dissipation of the 11 specimen groups were comparatively analyzed.The results indicate that:1)Compared with specimens without steel tubes,the end-embedded steel tubes can significantly enhance the seismic performance of the structure,with the yield load and peak load increasing by 2.18%and 2.38%,respectively,and ductility improving by 7.05%.2)Increasing the strength of the steel plates has a significant effect on the improvement of bearing capacity and ductility,with maximum increases in yield load and peak load of 35.71%and 29.15%,respectively,and a maximum ductility improvement of 21.94%.3)The study demonstrates that double steel plate reactive powder concrete composite shear walls with end-embedded steel tubes show considerable improvement in bearing capacity,ductility,initial stiffness,and energy dissipation,as well as superior seismic performance.The findings provide a theoretical basis for the high-ductility design and performance enhancement of key lateral force-resisting components in high-rise buildings.关键词
复合结构/端部内置/圆钢管/双钢板活性粉末混凝土/抗震性能Key words
composite structure/embedded end/round steel tube/double steel plate reactive powder concrete/seismic performance分类
建筑与水利引用本文复制引用
袁朝庆,张证柱,张浩,李月,计静..端部内置钢管双钢板-RPC剪力墙抗震性能分析[J].河北工业科技,2026,43(1):28-39,12.基金项目
黑龙江省自然科学基金联合引导项目(LH2024E014) （LH2024E014）
