The seismic performance of masonry-infilled reinforce concrete (RC) frame buildings is an intricate issue due to the variety and complexity failure mechanisms observed on this type of buildings during an earthquake, mainly due to wall-frame interaction. This leads to seriously damaged infill walls and it can produce large economic losses and even jeopardize human lives in an earthquake event. For this reason, in this study a new type of flexible connection able to reduce the wall-frame interaction, and consequently improving the overall seismic performance of the structure is examined. The research encompasses both experimental and numerical analyses of three distinct cases: a rigid connection (Case 1), a traditionally flexible connection (Case 2), and the new proposed type of flexible connection (Case 3). The in-plane and out-of-plane seismic performance is analyzed and compared for these cases. As a result of the study, the new type of flexible connection effectively reduced in-plane damage of the infill walls and minimized undesirable infill-frame interaction. Compared with rigid and traditional connections, the energy dissipation capacity increased by 37.7% and 3.5% for the masonry-infilled RC frame structure with a new flexible connection. At the same time, the out-of-plane strength and stiffness of the new flexible connection increased by 119.8% and 104.2% in the same prior in-plane drift ratio than that of traditional flexible connection. It is concluded that the steel cable structure (the U-bars are connected to the frames to ensure out-of-plane stability of infill walls.) can improve the restraint of frames on infill walls, which is beneficial to development of out-of-plane horizontal arch mechanism.

砖石填充钢筋混凝土（RC）框架建筑的抗震性能是一个复杂的问题，因为在地震过程中观察到这类建筑的破坏机制多种多样且复杂，主要是由于墙体与框架的相互作用。这会导致填充墙严重受损，在地震中会造成巨大的经济损失，甚至危及人的生命。因此，在本研究中，研究了一种新型柔性连接，能够减少墙体与框架的相互作用，从而提高结构的整体抗震性能。该研究涵盖三种不同情况的实验和数值分析：刚性连接（案例 1）、传统柔性连接（案例 2）和新提出的柔性连接类型（案例 3）。对这些情况的面内和面外抗震性能进行了分析和比较。研究结果表明，新型柔性连接有效减少了填充墙的面内损坏，并最大限度地减少了不良的填充框架相互作用。与刚性连接和传统连接相比，采用新型柔性连接的砌体填充RC框架结构的耗能能力分别提高了37.7%和3.5%。同时，在相同面内位移比的情况下，新型柔性连接的面外强度和刚度比传统柔性连接分别提高了119.8%和104.2%。结论：钢索结构（U型钢与框架连接，保证填充墙面外稳定性）可以提高框架对填充墙的约束力，有利于面外结构的发展。 -平面水平拱形机构。