Abstract Steel reinforced concrete composite (SRC) structural walls with embedded steel profiles have superb flexural strength and stiffness, which may lead to a more distinct influence on the shear deformation in these walls. If the walls have flanged sections, substantial influences of the shear lag effect could be expected. This paper investigates the portion of shear deformation and influences of the shear lag effect in non-rectangular composite structural wall with different design parameters by finite element method. Methods for calculating the portion of shear deformation and shear lag effect in design are proposed based on a truss analogy. The study shows that a large portion of shear deformation exists for steel-concrete composite walls, which could account for more than 40% of the total deformation while vertical strain of the steel profiles at end of the flange of SRC walls is significantly smaller than assumed by plane section assumption. These effects can be captured reasonably by the proposed methods.

中文翻译：

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非矩形钢筋混凝土结构墙体剪切变形的影响

摘要 内嵌钢型材的钢增强混凝土复合（SRC）结构墙体具有极好的抗弯强度和刚度，这可能对这些墙体的剪切变形产生更明显的影响。如果墙壁具有法兰部分，则可以预期剪力滞效应的显着影响。本文采用有限元方法研究了不同设计参数的非矩形复合结构墙体的剪切变形部分及剪力滞效应的影响。基于桁架类比，提出了计算设计中剪切变形和剪力滞效应的方法。研究表明，钢-混凝土组合墙存在很大一部分剪切变形，这可能占总变形的 40% 以上，而 SRC 墙翼缘端部钢型材的垂直应变明显小于平面截面假设。这些影响可以通过所提出的方法合理地捕获。