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http://dx.doi.org/10.12989/sem.2006.22.3.311

Post-peak response analysis of SFRC columns including spalling and buckling  

Dhakal, Rajesh P. (Department of Civil Engineering, University of Canterbury)
Publication Information
Structural Engineering and Mechanics / v.22, no.3, 2006 , pp. 311-330 More about this Journal
Abstract
Standard compression tests of steel fiber reinforced concrete (SFRC) cylinders are conducted to formulate compressive stress versus compressive strain relationship of SFRC. Axial pullout tests of SFRC specimens are also conducted to explore its tensile stress strain relationship. Cover concrete spalling and reinforcement buckling models developed originally for normal reinforced concrete are modified to extend their application to SFRC. Thus obtained monotonic material models of concrete and reinforcing bars in SFRC members are combined with unloading/reloading loops used in the cyclic models of concrete and reinforcing bars in normal reinforced concrete. The resulting path-dependent cyclic material models are then incorporated in a finite-element based fiber analysis program. The applicability of these models at member level is verified by simulating cyclic lateral loading tests of SFRC columns under constant axial compression. The analysis using the proposed SFRC models yield results that are much closer to the experimental results than the analytical results obtained using the normal reinforced concrete models are.
Keywords
steel fiber reinforced concrete (SFRC); elasto-plastic and fracture (EPF) model; tension softening/stiffening model; cover spalling; reinforcement buckling; fiber analysis;
Citations & Related Records

Times Cited By Web Of Science : 5  (Related Records In Web of Science)
Times Cited By SCOPUS : 6
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