Cyclic behaviour of post-Northridge WUF-B connections

Han, Sang Whan; Kwon, Gun; Moon, Ki Hoon

doi:10.1016/j.jcsr.2006.05.003

Cited by 48 publications

(19 citation statements)

References 5 publications

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“…As compared to other traditional beamto-column connections, the yielding of the column-tree connections occurred later. As in the WUF connections, their yielding usually occurred before 1% story drift ratio (Han et al, 2007;Tsai, 1995;Engelhardt and Husain, 1993). This demonstrates that bolt slip can provide obvious inelastic deformation.…”

Section: Summary Of Test Resultsmentioning

confidence: 82%

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Cyclic testing of steel column-tree moment connections with weakened beam splices

Chen

et al. 2014

Int J Steel Struct

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Traditionally, the beam splice assemblies of column-tree connections are designed according to the full-strength design principle. Actually, the beam splice is set up at a certain distance from the column face, thus the plastic moment capacity of the beam splice does not need to be greater than the plastic moment capacity of the beam. This paper experimentally presents the effects of the weakened beam splice on the seismic performance of column-tree steel moment connections. Cyclic tests of two column-tree connection specimens with weakened beam splices and one specimen following the full-strength design principle were conducted to verify their inelastic behavior and failure modes. The test results showed that the moment resisting capacity of the column-tree connection specimens with weakened beam splices did not obviously decrease. Also, their energy dissipation capacity was better than that of the specimen following the full-strength design principle.

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Section: Summary Of Test Resultsmentioning

confidence: 82%

“…Welded unreinforced flange-welded web (WUF-W) connections (Han et al, 2007;Roeder, 2002) were used for the beam-column joint of all specimens. These connections utilized complete joint penetration (CJP) were used to splice the beams.…”

Section: Design Of Test Specimensmentioning

confidence: 99%

Cyclic testing of steel column-tree moment connections with weakened beam splices

Chen

et al. 2014

Int J Steel Struct

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“…Moreover, panel zone configuration also highly affects the connection hysteresis behavior (Han et al . ()). We selected the hysteresis rule of the basic connections based on well‐known models introduced in FEMA‐P440A.…”

Section: Modeling and Ground Motion Recordsmentioning

confidence: 94%

Effects of in‐cycle strength degradation on collapse capacity of steel moment frames

Amiri

Lahiji

Darvishan

2013

Structural Design Tall Build

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SUMMARY In this study, the effects of in‐cycle strength degradation of steel moment connections are investigated on global behavior of multiple degree‐of‐freedom structures. Two types of degrading connection models are defined and compared with a bilinear non‐degrading model. Due to dispersion of the experimental test results on connections performance, two models are considered for each type. A probability assessment is carried out by implementation of incremental dynamic analysis to find the capacity of the structures for various performance levels. A sensitivity study is conducted on hysteresis parameters of connection models to investigate the effect of these parameters on global behavior of the structures. Due to increased dispersion of displacement demands observed in degrading cases, a reliability analysis is carried out to consider the effect of uncertainty on confidence level of the structures. Results show that in‐cycle strength degradation can lead to abrupt dynamic instability and as a consequence decrease in reliability of the system against collapse. Copyright © 2013 John Wiley & Sons, Ltd.

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“…Moment strengths measured in tests of RBS-B connections with bolted webs [4,6,14] as well as tests of WUF-B connections with similar bolted web connections [15,16] are used to validate the proposed procedure. The information about the tested specimens is summarized in Table 1.…”

Section: Validation Of the Proposed Rbs-b Moment Strength Evaluation mentioning

confidence: 99%

Design equations for moment strength of RBS-B connections

Han

Moon

Stojadinović

2009

Journal of Constructional Steel Research

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Cyclic behaviour of post-Northridge WUF-B connections

Cited by 48 publications

References 5 publications

Cyclic testing of steel column-tree moment connections with weakened beam splices

Cyclic testing of steel column-tree moment connections with weakened beam splices

Effects of in‐cycle strength degradation on collapse capacity of steel moment frames

Design equations for moment strength of RBS-B connections

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