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  • cyclic behavior of grouting sleeve connections

    Rights statement: This is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Construction and Building Materials, 279, 2021 DOI: 10.1016/j.conbuildmat.2021.122394

    Accepted author manuscript, 2.12 MB, PDF document

    Embargo ends: 5/02/22

    Available under license: CC BY-NC-ND

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Experimental investigation on the post-fire cyclic behavior of grouted sleeve connections

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Article number122394
<mark>Journal publication date</mark>12/04/2021
<mark>Journal</mark>Construction and Building Materials
Volume279
Number of pages13
Publication StatusPublished
Early online date5/02/21
<mark>Original language</mark>English

Abstract

Grouted sleeve connections have been widely used in precast construction for joining rebar. In order to study their post-fire seismic performance, grouted sleeve connections, which are heated first to elevated temperature and then cooled down to room temperature, are tested under both monotonic and cyclic loadings. For comparisons, the same tests are also carried out on continuous rebar. The failure modes, skeleton curves and compression strength of the specimens are analyzed to study the influence of temperature on the seismic performance of the grouted sleeve connections. The results show that buckling occurs to all the grouted sleeve connections under cyclic loading. It is also found that the skeleton curves, compressive and buckling strength of both the connections and the continuous rebar decrease with the increase of temperature up to 600 °C. From the test results and on the basis of the GMP and GA hysteric constitutive models of steel, a modified model for cyclic constitutive law of the continuous rebar and the grouted sleeve connections is presented and validated. The results demonstrate that the modified model is capable of accurately simulating hysteretic properties of steel rebars and grouted sleeve connections.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Construction and Building Materials, 279, 2021 DOI: 10.1016/j.conbuildmat.2021.122394