Numerical simulation of axially loaded concrete columns under transverse impact and vulnerability assessment

Thilakarathna, Herath; Thambiratnam, David; Dhanasekar, Manicka; Perera, Nimal

doi:10.1016/j.ijimpeng.2010.06.003

Cited by 166 publications

(67 citation statements)

References 9 publications

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“…Both the longitudinal and transverse reinforcing steel bars were modelled using beam elements. The model builds with a uniform mesh of The 72Rel3 (MAT _CONCRETE_DAMAGE_REL3) concrete material model was used in modeling the behavior of the concrete columns [10,11]. The 72Rel3 material model predicts the behavior of the concrete under blast loadings.…”

Section: Finite Element Modeling Of Rc Columnsmentioning

confidence: 99%

Numerical Investigation on the Non-Linear Response of Reinforced Concrete (RC) Columns Subjected to Extreme Dynamic Loads

Abedini

Mutalib

Raman

et al. 2017

Journal of Asian Scientific Research

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Article HistoryReinforced concrete (RC) is the most widely used construction system in construction. The non-linear response of concrete when subjected to extreme dynamic loads such as blast is an important consideration for analysis and design of structures members. In this paper numerical modeling of RC column under blast load is presented using LS DYNA explicit dynamics software package. The accuracy of the model to simulate RC column responses to blast loads is verified by comparing the numerical simulation results with the test results available in the literature. A parametric study was chosen to investigate the effects of charge weight and stand-off distance on the dynamic behavior of RC column. The results of the numerical study show that the charge weight and standoff distance has a significant effect on the behavior of RC columns under explosion loading. Contribution/ Originality:The main contribution of this research is a better understanding of the dynamic response of RC columns under various blast magnitudes. Blast loading and its effects on a structure are influenced by a number of factors including charge weight, location of the blast, geometrical configuration and orientation of the structure.

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Section: Finite Element Modeling Of Rc Columnsmentioning

confidence: 99%

Numerical Investigation on the Non-Linear Response of Reinforced Concrete (RC) Columns Subjected to Extreme Dynamic Loads

Abedini

Mutalib

Raman

et al. 2017

Journal of Asian Scientific Research

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“…[12,13]. The MAT72 REL3 concrete model was used to characterize concrete properties in the numerical model for this study [14,15].…”

Section: Development Of Model and Numerical Simulationmentioning

confidence: 99%

P-I Diagram Generation for Reinforced Concrete (RC) Columns Under High Impulsive Loads Using Ale Method

Abedini

Mutalib

Raman

2017

Journal of Asian Scientific Research

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Article HistoryReinforced concrete (RC) column systems are widely used in protective structures designed to resist blast events. Development of correlations between explosive load and the resulting damage in concrete elements are significant for incorporation of blast load in design and also for pre and post-damage assessments. The main purpose of this research is to organizing correlations between explosive load and damage. These correlations are being expressed in Pressure-Impulse diagrams. The damage level is calculated based on the residual axial load-carrying capacity of the damaged RC column. Finite element modeling in LS-DYNA is used to analyze the structures and calculate the damage level for each explosive phenomenon. The Arbitrary Lagrangian Eulerian (ALE) method is used to simulate the explosive loads in the reinforced concrete column. The results demonstrated that increase the column size cause to increase in pressure and impulsive asymptotes and lead to enhanced the pressureimpulse (P-I) diagram.Contribution/ Originality: Current knowledge on quantifying and predicting explosion damage of RC columns subjected to blast effects is incomplete and limited. This research examines the damage analysis of RC columns using P-I diagram. The P-I diagrams are developed to determine levels of damage on a structure and have also been used in the past to evaluate human response to shock wave generated by an explosion.

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“…There are certainly many existing bridges that could be deficiently designed in the case of vehicular impact. Several studies have been conducted concerning the dynamic effects of a high impact vehicle collision with bridge piers and columns [31][32][33][34][35]. FRP retrofit can offer a quick and economical repair as compared to traditional methods.…”

Section: Strengthening Of Columns Subjected To Impact Loadsmentioning

confidence: 99%

FRP Composites Strengthening of Concrete Columns under Various Loading Conditions

2014

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This paper provides a review of some of the progress in the area of fiber reinforced polymers (FRP)-strengthening of columns for several loading scenarios including impact load. The addition of FRP materials to upgrade deficiencies or to strengthen structural components can save lives by preventing collapse, reduce the damage to infrastructure, and the need for their costly replacement. The retrofit with FRP materials with desirable properties provides an excellent replacement for traditional materials, such as steel jacket, to strengthen the reinforced concrete structural members. Existing studies have shown that the use of FRP materials restore or improve the column original design strength for possible axial, shear, or flexure and in some cases allow the structure to carry more load than it was designed for. The paper further concludes that there is a need for additional research for the columns under impact loading senarios. The compiled information prepares the ground work for further evaluation of FRP-strengthening of columns that are deficient in design or are in serious need for repair due to additional load or deterioration.

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Numerical simulation of axially loaded concrete columns under transverse impact and vulnerability assessment

Cited by 166 publications

References 9 publications

Numerical Investigation on the Non-Linear Response of Reinforced Concrete (RC) Columns Subjected to Extreme Dynamic Loads

Numerical Investigation on the Non-Linear Response of Reinforced Concrete (RC) Columns Subjected to Extreme Dynamic Loads

P-I Diagram Generation for Reinforced Concrete (RC) Columns Under High Impulsive Loads Using Ale Method

FRP Composites Strengthening of Concrete Columns under Various Loading Conditions

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