This paper investigated the interactive behaviors of infill walls and frames in steel plate shear wall (SPSW) systems reinforced by fiber-reinforced polymers (FRPs), using the finite element method. The effects of the system aspect ratio/height as well as the fiber type/orientation/content are also considered in the study. The results show that, in general, the use of FRPs improves the system strength/energy dissipation/secant stiffness, while it adversely affects the system ductility and it has no significant or clear effect on the system initial stiffness/damping ratio. The fiber modulus of elasticity and tensile strength properties have a dominant role in the composite system strength, while its ductility plays a major role in the failure time of FRPs. The use of FRPs slightly increases the level of stresses in the frame, while it affects the growth of stresses and thus the effectiveness of the infill wall in the initial stages of loading. In single-story SPSWs, the use of FRPs affects mainly the infill wall behavior, while in multi-story ones, due to a greater degree of wall–frame interaction, it affects both of the infill wall and frame behaviors.

本文利用有限元方法研究了纤维增强聚合物（FRP）增强的钢板剪力墙（SPSW）系统中填充墙和框架的相互作用。在研究中还考虑了系统长宽比/高度以及纤维类型/方向/含量的影响。结果表明，总体而言，使用FRP可以提高系统强度/能量消散/割线刚度，同时对系统延展性产生不利影响，并且对系统初始刚度/阻尼比没有明显或明显的影响。纤维的弹性模量和拉伸强度特性在复合系统强度中起主要作用，而其延展性在FRP的失效时间中起主要作用。FRP的使用会稍微增加框架中的应力水平，虽然它会影响应力的增长，从而影响填充墙在加载初期的有效性。在单层SPSW中，FRP的使用主要影响填充墙的行为，而在多层结构中，由于墙与墙之间的相互作用程度更高，因此会影响填充墙和框架的行为。