于金光, 刘利明, 郝际平. 部分组合框架-钢板剪力墙边框柱设计方法研究[J]. 工程力学, 2020, 37(2): 98-110. DOI: 10.6052/j.issn.1000-4750.2019.01.0110
引用本文: 于金光, 刘利明, 郝际平. 部分组合框架-钢板剪力墙边框柱设计方法研究[J]. 工程力学, 2020, 37(2): 98-110. DOI: 10.6052/j.issn.1000-4750.2019.01.0110
YU Jin-guang, LIU Li-ming, HAO Ji-ping. STUDY ON DESIGN METHOD OF VERTICAL BOUNDARY ELEMENT OF PARTIALLY ENCASED COMPOSITE FRAME-STEEL PLATE SHEAR WALLS[J]. Engineering Mechanics, 2020, 37(2): 98-110. DOI: 10.6052/j.issn.1000-4750.2019.01.0110
Citation: YU Jin-guang, LIU Li-ming, HAO Ji-ping. STUDY ON DESIGN METHOD OF VERTICAL BOUNDARY ELEMENT OF PARTIALLY ENCASED COMPOSITE FRAME-STEEL PLATE SHEAR WALLS[J]. Engineering Mechanics, 2020, 37(2): 98-110. DOI: 10.6052/j.issn.1000-4750.2019.01.0110

部分组合框架-钢板剪力墙边框柱设计方法研究

STUDY ON DESIGN METHOD OF VERTICAL BOUNDARY ELEMENT OF PARTIALLY ENCASED COMPOSITE FRAME-STEEL PLATE SHEAR WALLS

  • 摘要: 该文通过对部分组合框架—薄钢板剪力墙结构的试验,发现其内嵌钢板破坏顺序为初始对角屈服、统一屈服和应变硬化三个阶段。引入部分组合柱后,有效改善了传统钢柱的弯扭失稳破坏模式,部分组合框架柱破坏模式为柱顶和柱底形成塑性铰的强度破坏。基于“强框架、弱墙板”的设计理念,该文根据叠加原理确定了统一屈服阶段和应变硬化阶段部分组合柱内力计算原则,提出了适用于部分组合框架-薄钢板剪力墙框架柱的设计方法。通过有限元验证表明:该设计方法能够有效地预测底层受压柱的破坏模式及其塑性铰出现的位置,能够为合理的钢板墙边框柱设计提供理论依据。

     

    Abstract: Based on the experimental study of the partially encased composite frame-thin steel plate shear walls, it is found that the failure stages of the infilled steel plate include initial diagonal yielding, uniformed yielding, and strain hardening. By introducing the partially encased composite column, the bending-torsion failure modes of traditional steel columns are effectively improved. The failure mode of the partially encased composite column is the strength failure of plastic hinges formed at the top and bottom of the column. Based on the design concept of "strong frame and weak wall panel", it determines the calculation principle of the internal force of the partially encased composite column in the uniformed yielding stage and the strain hardening stage according to the superposition principle, and proposes a design method suitable for frame column of the partially encased composite frame-thin steel plate shear walls. The finite element simulation shows that the design method can effectively predict the failure modes and the locations of the plastic hinges of the bottom compressed column, which can provide theoretical basis for reasonable design of boundary frame column in steel plate shear walls.

     

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