Numerical Analysis of Structures under The effect of Ground Shock Induced from Blast Loads | ||
| Port-Said Engineering Research Journal | ||
| Article 12, Volume 21, Issue 2, September 2017, Pages 120-127 PDF (946.51 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/pserj.2017.33300 | ||
| Authors | ||
| Tarek Nageeb Salem1; Nabil Nagy2; Ahmed Arafa* 1 | ||
| 1Department of Civil Engineering, Faculty of Engineering, Zagazig University | ||
| 2Military Technical College, Cairo | ||
| Abstract | ||
| Blast loads have come into attention in recent years due to the large number of accidental events. So, important and critical structures may be designed to resist transient extreme loads such as high velocity impacts and explosions. In reality, a surface explosion generates both ground shock and air blast pressure on nearby structures, of which the ground shock usually arrives at structure foundation earlier than air blast pressure because of the different wave propagation velocities in soil and air. The ground shock will excite the structure to move and it will not response to air blast pressure from zero initial condition. So, a separate study accounting for the effect of an explosion ground shock on a nearby structure has been performed using FEM software ABAQUS. The analysis started with a static step which include applying initial stress due to soil and structure’s own weights, and additional structural loads, after that the model is analyzed under the blast loading near the structure, then a parametric study including the charge weight, the distance of the charge and the structure height has been performed. Results showed that the structure is exposed to additional displacements and deformations in both horizontal and vertical directions resulting in shifting its foundations and additional settlements. | ||
| Keywords | ||
| Blast Load; Structural Response; Soil Behavior; ABAQUS | ||
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