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Behavior of square concrete columns reinforced with Prefabricated Cage System

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Abstract

Behavior of normal strength concrete columns reinforced with a new reinforcement, termed Prefabricated Cage System (PCS) is investigated. A total of 16 small-scale PCS and rebar reinforced column specimens were constructed and tested under monotonic axial displacement. The experimental results indicate that the overall behavior of rebar and PCS reinforced specimens are comparable prior to achieving the peak column load. In general, PCS specimens are more ductile and absorb more energy than similar rebar specimens after the peak load is reached. The effect of different parameters, such as the steel tube thickness, number of longitudinal reinforcements, transverse steel spacing, and crossties on the specimens’ strength and deformation capacity are investigated. A confined concrete model is proposed and used to predict the load–displacement response. The theoretical load–displacement relations obtained from the proposed model are compared with those obtained from the Mander et al. (J Struct Eng 114(8):1804–1826, 1988) confinement model.

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Authors and Affiliations

  1. River Consulting LLC, 3000 Corporate Exchange Dr, Suite 400, Columbus, OH, 43231, USA

    Mohammad Shamsai

  2. Department of Civil and Environmental Engineering and Geodetic Science, The Ohio State University, Columbus, OH, USA

    Halil Sezen

Authors
  1. Mohammad Shamsai
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  2. Halil Sezen
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Correspondence to Mohammad Shamsai.

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Shamsai, M., Sezen, H. Behavior of square concrete columns reinforced with Prefabricated Cage System. Mater Struct 44, 89–100 (2011). https://doi.org/10.1617/s11527-010-9611-y

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  • DOI: https://doi.org/10.1617/s11527-010-9611-y

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