Journal
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
Volume 109, Issue -, Pages 72-86Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jcsr.2015.02.009
Keywords
Grouted connection; Steel columns; Seismic; Bridge; Ductility; Buckling
Funding
- Alaska DOTPF
- Alaska University Transportation Center (AUTC)
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This paper discusses the seismic performance of composite connections designed to capacity protect critical welded regions of steel bridge pier connections. Past research has shown that directly welding hollow circular steel pipes to a steel cap beam, regardless of weld configuration, does not mitigate the undesirable failure mode of brittle cracking in the welded region. Hence, capacity protection of the welds becomes an attractive option. A new detail proposed in this paper consists of a composite connection intended to relocate the plastic hinge away from the weld interface. Through full scale quasi-static testing, nonlinear FEA, and scaled shake table testing the connection was shown to perform well. (C) 2015 Elsevier Ltd. All rights reserved.
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