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Title: Lapped Splices in Earthquake-Resisting Columns

Author(s): Thomas Paulay

Publication: Journal Proceedings

Volume: 79

Issue: 6

Appears on pages(s): 458-469

Keywords: anchorage (structural); bond (concrete to reinforcement); columns(supports): cyclic loads: detailing; dynamic loads; earthquake resistant structures;lap connections: reinforced concrete; reinforcing steels; splicing:structural design.

DOI: 10.14359/10920

Date: 11/1/1982

Detailing requirements may be relaxed and lapped splices placed in the end region of columns of earthquake-resisting ductile frames when it can be insured that plastic hinges in upper stories can develop only in the beams. A simple design procedure is proposed to determine the amount of transverse reinforcement necessary to insure that splices can sustain at least 10 cycles of reversed cyclic loading up to 95 percent of the ideal flexural strength of the column section. Results of an experimental study, in which simulating static and dynamic cyclic loading was used, are summarized and features of splice behavior are presented. Because of the significant reduction of yield length along bars, it is recommended that splices not be located in regions where plastic hinges could develop.


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