Abstract Reinforced concrete (RC) ordinary moment frames (OMFs) are commonly used for building construction in low-to-moderate seismic regions. Unlike those in special moment frames (SMFs), beam-column joints in RC OMFs are susceptible to damage during earthquakes because the joints are not designed to resist the large shear forces transferred from adjoined members in the elastic range. For this reason, they are more vulnerable when subjected to bidirectional seismic loading. Beam-corner column joints (corner joints) especially are exposed to bidirectional seismic loading. The aim of this study was to explore the cyclic behavior of RC OMF corner joints. Three full-scale corner joint specimens with slabs were built and tested under unidirectional and bidirectional loadings. It was observed that minimal joint transverse reinforcement placed in the OMF joints played an important role on the cyclic performance of the joints, particularly under bidirectional loading. Noticeable difference existed between measured and ASCE 41-17 force-deformation curves, particularly in bidirectionally loaded specimens and in the specimen without joint transverse reinforcement.

中文翻译：

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单向和双向荷载作用下RC OMF梁-角柱节点的循环行为

摘要 钢筋混凝土 (RC) 普通弯矩框架 (OMF) 常用于中低地震地区的建筑施工。与特殊力矩框架 (SMF) 中的那些不同，RC OMF 中的梁柱节点在地震期间容易受到损坏，因为这些节点的设计不能抵抗从弹性范围内的相邻构件传递的大剪力。出于这个原因，它们在承受双向地震载荷时更加脆弱。梁角柱节点（角节点）尤其受到双向地震载荷的影响。本研究的目的是探索 RC OMF 角接头的循环行为。在单向和双向载荷下建造和测试了三个带板的全尺寸角接缝试样。据观察，放置在 OMF 接头中的最小接头横向钢筋对接头的循环性能起着重要作用，特别是在双向载荷下。实测和 ASCE 41-17 力-变形曲线之间存在显着差异，特别是在双向加载的试样和没有接头横向钢筋的试样中。