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Assessment of beam-column connections using perforated beams with multiple closely spaced web openings

机译:使用具有多个紧密间隔的腹板开口的穿孔梁评估梁柱连接

摘要

Recently researchers concentrate on alternative fuse designs promoting the concept of performance-based design while reducing the beam section in different ways including that of creating a hole in its web (RWS connections). Similar practice is applied in the fabrication of perforated beams mostly used to support the service integration as well as the significant mass reduction in steel frames. This paper presents a finite element (FE) analysis of a partially restrained extended end-plate connection with single and multiple circular web perforations introduced along the length of the beam and subjected to the cyclic loading proposed by SAC protocol from FEMA-350 (2000). The parameters introduced were the distance from the face of the column, S, and the number of closely spaced web openings. The design of such connections should be based on the articulate decision of the first opening’s distance from the face of the column.
机译:最近,研究人员专注于替代性保险丝设计,以促进基于性能的设计理念,同时以不同方式减小梁截面,包括在腹板中形成孔(RWS连接)的方式。在穿孔梁的制造中也采用了类似的做法,该穿孔梁主要用于支持服务集成以及钢框架的质量显着降低。本文介绍了部分约束的延伸端板连接的有限元(FE)分析,该连接具有沿梁的长度方向引入的单个和多个圆形腹板穿孔,并经受了SAC协议从FEMA-350(2000)提出的循环载荷。引入的参数是到柱子表面的距离S和紧密间隔的网孔数量。此类连接的设计应基于第一个孔距圆柱面距离的明确决定。

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