Title
Seismic Performance Of Precast Columns With Mechanically Spliced Column-Footing Connections
Keywords
Accelerated bridge construction; Cyclic loading; Ductility; Emulative; Grout sleeve; Mechanical coupler; Plastic hinge
Abstract
This paper presents the results from a large-scale experimental study that was conducted at the University of Nevada, Reno, NV. Five half-scale bridge column models were constructed and tested under reversed slow cyclic loading. The study focused on developing four new moment connections at column-footing joints for accelerated bridge construction in regions of high seismicity. The new connections were employed in precast columns, each using mechanical splices to create connectivity with reinforcing bars in a cast-in-place footing. Two different mechanical splices were studied: an upset headed coupler and a grout-filled sleeve coupler. Along with the splice type, the location of couplers within the plastic hinge zone was also a test variable. All precast models were designed with the intent to emulate conventional cast-in-place construction and, thus, were compared with a conventional cast-inplace test model. Results indicate the behavior of these new connections was similar to that of conventional cast-in-place construction with respect to key response parameters, although the plastic hinge mechanism could be significantly affected by the couplers. © 2014, American Concrete Institute.
Publication Date
1-1-2014
Publication Title
ACI Structural Journal
Volume
111
Issue
3
Number of Pages
639-650
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.14359/51686624
Copyright Status
Unknown
Socpus ID
84903946608 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/84903946608
STARS Citation
Haber, Zachary B.; Saiidi, M. Saiid; and Sanders, David H., "Seismic Performance Of Precast Columns With Mechanically Spliced Column-Footing Connections" (2014). Scopus Export 2010-2014. 9332.
https://stars.library.ucf.edu/scopus2010/9332