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http://dx.doi.org/10.12989/sem.2012.42.3.363

The influence of load pulse shape on pressure-impulse diagrams of one-way RC slabs  

Wang, Wei (Institute of Technique Physics, College of Science, National University of Defense Technology)
Zhang, Duo (Institute of Technique Physics, College of Science, National University of Defense Technology)
Lu, Fangyun (Institute of Technique Physics, College of Science, National University of Defense Technology)
Publication Information
Structural Engineering and Mechanics / v.42, no.3, 2012 , pp. 363-381 More about this Journal
Abstract
This study is aimed at providing an efficient analytical model to obtain pressure- impulse diagram of one-way reinforced concrete slabs subjected to different shapes of air blast loading using single degree of freedom method (SDOF). A tri-linear elastic perfectly plastic SDOF model has been used to obtain the pressure-impulse diagram to correlate the blast pressure and the corresponding concrete flexural damage. In order to capture the response history for the slab, a new approximately SDOF method based on the conventional SDOF method is proposed and validated using published test data. The influences of pulse loading shape on the pressure-impulse diagram are studied. Based on the results, a pressure-impulse diagram generation method using SDOF and an analytical equation for the pressure-impulse diagram is proposed to different damage levels and different blast loading shapes.
Keywords
blast load; SDOF; pressure-impulse diagram; one-way concrete slab;
Citations & Related Records
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