A new SDOF method of one-way reinforced concrete slab under non-uniform blast loading

Wei Wang, Duo Zhang, Fangyun Lu and Ruichao Liu

Abstract

A new effective model for calculation of the equivalent uniform blast load for non-uniform blast load such as close-in explosion of a one-way square and rectangle reinforced concrete slab is proposed in this paper. The model is then validated using single degree of freedom (SDOF) system with the experiments and blast tests for square slabs and rectangle slabs. Test results showed that the model is accurate in predicting the damage level on the tested RC slabs under the given explosive charge weight and stand-off distance especially for close-in blast load. The results are also compared with those obtained by conventional SDOF analysis and finite element (FE) analysis using solid elements. It is shown that the new model is more accurate than the conventional SDOF analysis and is running faster than the FE analysis.

Key Words

blast load; equivalent load; SDOF; one-way reinforced concrete slab

Address

Wei Wang: Luoyang Institute of Hydraulic Engineering and Technology, Luoyang 470123, Henan, China; Institute of Technique Physics, College of Science, National University of Defense Technology, Changsha, Hunan 410073, P.R. China Duo Zhang, Fangyun Lu: Institute of Technique Physics, College of Science, National University of Defense Technology, Changsha, Hunan 410073, P.R. China Ruichao Liu : Luoyang Institute of Hydraulic Engineering and Technology, Luoyang 470123, Henan, China

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