Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6978
Title: Behavior and modeling of shear-critical RC beams under impact loading
Authors: Saatçi, Selçuk
Vecchio, Frank J.
Saatçi, Selçuk
Izmir Institute of Technology. Civil Engineering
Keywords: Finite element modeling
Impact testing
Reinforced concrete
Shear flow
Issue Date: 2010
Publisher: American Concrete Institute
Source: Saatçi, S., and Vecchio, F. J. (2010). Behavior and modeling of shear-critical RC beams under impact loading. In G. Thiagarajan, E. Williamson, & C. Conley (Eds.), Paper presented at the Behavior of Concrete Structures Subjected to Blast and Impact 2010 at the ACI Fall 2010 Convention, Pittsburgh, Pennsylvania, 24-28 October (pp. 89-108). Farmington Hills, MI: American Concrete Institute
Abstract: The lack of a complete understanding of shear behavior under high dynamic conditions hindered the efforts for accurate prediction of impact behavior, since severe shear mechanisms may dominate the behavior of RC structures when subjected to impact loads. This current study involves a well-instrumented experimental program that was undertaken to contribute to our understanding of the effects of shear mechanisms on the behavior of reinforced concrete (RC) structures under impact loads. The test results showed that the shear characteristics of the RC beam specimens played an important role in their overall behavior. All specimens, regardless of their shear capacity, developed severe diagonal shear cracks, forming a shear-plug under the impact point. Furthermore, the application of the Disturbed Stress Field Model (DSFM) as an advanced method of modeling shear behavior under impact conditions is also investigated. A two-dimensional nonlinear finite element reinforced concrete analysis program (VecTor2), developed previously for static loads, was modified to include the consideration of dynamic loads such as impacts. VecTor2 analyses of the test specimens were satisfactory in predicting damage levels, and maximum and residual displacements. The methodology employed by VecTor2, based on the DSFM, proved to be successful in predicting the shear-dominant behavior of the specimens under impact.
Description: Behavior of Concrete Structures Subjected to Blast and Impact 2010 at the ACI Fall 2010 Convention; Pittsburgh, PA; United States; 24 October 2010 through 28 October 2010
URI: http://hdl.handle.net/11147/6978
ISBN: 9781618397980
ISSN: 0193-2527
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

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