Preparing the Pressure-Impulse Diagrams for Reinforced Concrete Columns with Axial Load using Single Degree of Freedom Approach

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ESMAEILNIA M.; Mollaei s.

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Paper Information

Journal: Ferdowsi Civil Engineering Year:2018 | Volume:31 | Issue:3 Page(s): 93-107

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Information Journal Paper

Title

Preparing the Pressure-Impulse Diagrams for Reinforced Concrete Columns with Axial Load using Single Degree of Freedom Approach

Author(s)

ESMAEILNIA M. | Mollaei s. | Issue Writer Certificate

Keywords

Blast LoadingQ1

Equivalent Single Degree of Freedom ModelQ1

Pressure-Impulse diagramQ1

RC ColumnQ1

Abstract

In this paper, moment-curvature behavior of reinforced concrete column with constant axial load is determined by finite element method and then it is introduced to a single degree of freedom (SDOF) model based on Euler-Bernoulli theory. Using this SDOF model, dynamic response of the RC Column under the Blast Loading is estimated. The introduced SDOF includes secondary moments (P-δ ) effects, nonlinear behavior of the material and effects of strain rate on concrete and steel materials through the calculation steps of the model. In order to validation, results obtained from SDOF model for transverse displacement of RC Column under Blast Loading is compared to finite element analysis results (OPENSEES) and real-scale explosion test results on RC Columns. Then, introduced SDOF method is used to draw Pressure-Impulse (P-I) diagram of the column with considering the presence of axial compressive load. According to the results, introduced SDOF approach, under the far field explosion conditions (Z>1 kg/m1/3), has acceptable accuracy. As well, the effect of axial load on P-I diagram of the RC Column is very important.

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APA: Copy

ESMAEILNIA, M., & Mollaei, s.. (2018). Preparing the Pressure-Impulse Diagrams for Reinforced Concrete Columns with Axial Load using Single Degree of Freedom Approach. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), 31(3 ), 93-107. SID. https://sid.ir/paper/195993/en

Vancouver: Copy

ESMAEILNIA M., Mollaei s.. Preparing the Pressure-Impulse Diagrams for Reinforced Concrete Columns with Axial Load using Single Degree of Freedom Approach. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2018;31(3 ):93-107. Available from: https://sid.ir/paper/195993/en

IEEE: Copy

M. ESMAEILNIA, and s. Mollaei, “Preparing the Pressure-Impulse Diagrams for Reinforced Concrete Columns with Axial Load using Single Degree of Freedom Approach,” JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), vol. 31, no. 3 , pp. 93–107, 2018, [Online]. Available: https://sid.ir/paper/195993/en

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