Shaking-Table Testing of High Energy-Dissipating Rubberized Concrete Columns


This paper presents the results of the first shake-table tests of a large-scale rubberized concrete column. The rubberized column was formed by replacing 20% of the volume of fine aggregate with crumb rubber. The response of the rubberized column was compared to that of a conventional bridge column. Both columns had the same construction details, and the only difference was the material used. Both columns were subjected to a sequence of scaled historical ground motion recorded in the Northridge-01 1994 earthquake with near-fault pulse-like characteristics. The conventional column formed a flexural plastic hinge with rebar fracture after 14 scaled test runs, corresponding to 140% of the design earthquake. The rubberized column experienced the rebar fracture after 19 test runs, corresponding to 190% of the design earthquake. The rubberized column achieved a strength that was only 3% lower than that of the conventional column. Moreover, the rubberized column displayed a 12.5% increase in the lateral drift capacity. The dissipated energy of the rubberized column increased by 16.5% compared with the conventional column.


Civil, Architectural and Environmental Engineering

Keywords and Phrases

Concrete construction; Concrete testing; Concretes; Earthquake effects; Energy dissipation; Fracture; Geophysics; Bridge columns; Rubberized concrete; Scrap tires; Seismic behavior; Shaking table tests; Earthquakes; Shaking-table test

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Article - Journal

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© 2017 American Society of Civil Engineers (ASCE), All rights reserved.

Publication Date

01 Aug 2017