轴压荷载作用下双钢板-混凝土组合剪力墙中钢板屈曲性能研究  

Buckling Behavior of Steel Plate in Composite Shear Walls with Double-Skin Steel Plate and Filled Concrete Under Compression

作　　者：于跃 石军 蔡利建 郭兰慧[4] YU Yue;SHI Jun;CAI Lijian;GUO Lanhui(China Nuclear Power Engineering Co.,Ltd.,Beijing 100840,China;School of Ocean Engineering,Harbin Institute of Technology(Weihai),Weihai 264209,China;Key Lab of Civil Engineering Structure and Disaster Prevention in Universities of Shandong,Harbin Institute of Technology(Weihai),Weihai 264209,China;School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China)

机构地区：[1]中国核电工程有限公司,北京100840 [2]哈尔滨工业大学(威海)海洋工程学院,山东威海264209 [3]哈尔滨工业大学(威海)山东省高等学校土木工程结构与防灾实验室,山东威海264209 [4]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《建筑钢结构进展》2024年第4期37-45,共9页Progress in Steel Building Structures

基　　金：“十四五”国家重点研发计划项目(2022YFC3802001);国家自然科学基金(52308162)。

摘　　要：双钢板-混凝土组合剪力墙作为建筑物中的抗侧力构件,具有承载力高、耗能能力强和延性好等优点。在高层和超高层建筑结构中,双钢板-混凝土组合剪力墙需要承担一定的竖向荷载,钢板在正常使用阶段要求不发生弹性屈曲。钢板初始几何缺陷是影响双钢板-混凝土组合剪力墙轴压荷载下钢板屈曲应力的重要指标,而在以往的研究中,钢板屈曲应力的计算方法并未予以考虑。基于前期的双钢板-混凝土组合剪力墙轴压试验研究,采用分析软件ABAQUS建立了双钢板-混凝土组合剪力墙轴压试件有限元模型,模型中引入了钢板的初始几何缺陷,从钢板屈曲应变、荷载-位移曲线和破坏模态等方面与试验结果进行对比,验证了模型分析结果的合理性。在此基础上进行参数分析,系统研究了钢板初始几何缺陷、钢板距厚比和钢材屈服强度等参数对钢板屈曲性能的影响规律,基于试验和数值模拟分析结果,提出了考虑钢板初始几何缺陷影响的双钢板-混凝土组合剪力墙钢板屈曲应力计算方法。Since the double-skin steel plate concrete composite wall can be used as the lateral force resisting member,there are some advantages,such as high capacity,excellent energy dissipation and favorable ductility.Double-skin steel plate concrete composite walls in high-rise buildings are subjected to vertical loading,but the elastic buckling of steel plate is not allowed.Although the initial geometrical imperfection of steel plate is a critical influencing factor for the buckling stress,it was not considered in the calculation of the buckling stress.The finite element model(FEM)of double-skin composite walls was established by using ABAQUS in consideration of initial geometric imperfection of steel plate.The buckling strain of steel plate,load-displacement curves and failure modes obtained by FEM matched well with those from the test.The parametric analysis was conducted to study the influence of initial geometric imperfection,welding spot spacing-to-thickness ratio and steel yielding stress.The equation of steel plate buckling stress accounting for initial geometric imperfections was proposed.

关 键 词：组合剪力墙 轴压性能 钢板屈曲 初始几何缺陷 

分 类 号：TU528[建筑科学—建筑技术科学]