Earthquake Type Loading on R/C Beams to Column Connections with Wide Beams

抗弯矩钢筋混凝土框架结构体系是地震危险性高的地区最常用的中低层结构体系。如果设计得当和详细，它们是非常有韧性的系统，能够承受最严重的地震输入运动。至少有两个常见的连接问题还没有得到充分的研究，即宽梁连接和偏心梁连接。由于缺乏对这两种特殊情况的实验研究，提出了相互矛盾的设计建议。ACI委员会318允许在地震区进行宽梁连接。然而，352委员会以缺乏研究为由，不允许在地震区使用宽梁连接。这项研究研究的目标将是通过分析和实验研究这些特殊联系在大环境下的行为来产生信息载荷反转和制定试探性设计建议。然而，本项目的重点将放在宽梁连接上。这项研究工作有望为抗震钢筋混凝土宽梁梁柱节点的安全设计提供指导。

Moment resisting R/C frames are the most common type of structural system used for low to moderate rise structures in regions of high seismic risk. If properly designed and detailed they are very ductile systems capable of enduring the most severe earthquake input motions. At least two common connection problems have not been adequately researched, namely wide beam connections and eccentric beam connections. Due to the lack of experimental studies for these two special cases, conflicting design recommendations have been developed. Wide beam connections are permitted by ACI Committee 318 in seismic zones. However, citing the lack of research, Committee 352 does not allow the use of wide beam connections in seismic zones. The goal of this research study will be to generate information through analytical and experimental studies on the behavior of these special connections under large load reversals and to develop tentative design recommendations. The focus of this project however, will be on connections with wide beams. This research effort is expected to develop safe design guidelines for seismic reinforced concrete beam to column connections with wide beams.