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Analysis of RC structures subjected to air-blast loading accounting for strain rate effect of steel reinforcement |
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| Authors: | Guichang Yang Tat-Seng Lok |
| Affiliation: | aDepartment of Civil Engineering, Center for Protective Technology, National University of Singapore, 12 Kent Ridge Road, 119223 Singapore, Singapore bProtective Technology Research Centre, c/o School of Civil and Environmental Engineering, Nanyang Technological University, Block N1, Nanyang Avenue, 639798 Singapore, Singapore |
| Abstract: | A new method to calculate the dynamic strength of reinforced concrete (RC) structures, with emphasis on the embedded response of mild steel reinforcement, subjected to air-blast loading is derived. The proposed method is based on a single-degree-of-freedom (SDOF) system with appropriate modification for strain-rate effect. Approximate formulae are used and explained in detail. A numerical example is presented to show how the derived formulae are used for the analysis of concrete structures subjected to air-blast loading. |
| Keywords: | Strain rate effect Yielding delay time Air-blast loading Reinforced concrete structure |
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