Testing And Analysis Of Precast Columns With Grouted Sleeve Connections And Shifted Plastic Hinging

Keywords

Accelerated bridge construction; Displacement-based design; Ductility; Plastic hinge

Abstract

Prefabricated reinforced concrete column connections employing grouted sleeve (GS) splices enable rapid construction, are familiar to contractors, and their detailing resembles cast-in-place (CIP) construction. Previous studies showed disrupted plastic hinge formation in the stiff sleeve region. The proposed design method shifts the plastic hinge location above the sleeve region, which effectively increases the plastic rotation capacity and ductility. Plastic hinge shifting was realized by using transition splicing and high-strength steel reinforcement in the connecting element (footing). The proposed method was investigated experimentally using two 0.42-scale column tests under slow cyclic loading and a series of uniaxial tensile tests. Results indicate that good ductility can be achieved compared with conventional CIP construction and previously tested GS connections details. Experimental and analytical moment-curvature results were used to support discussion of design considerations and of an approximate method for calculating the displacement ductility of precast columns with GS connections and shifted plastic hinging.

Publication Date

10-1-2017

Publication Title

Journal of Bridge Engineering

Volume

22

Issue

10

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1061/(ASCE)BE.1943-5592.0001105

Socpus ID

85027553003 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85027553003

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