Structural Response of Two-Storey Reinforced Concrete Building Under Blasting Effects

Year 2016, Volume: 12 Issue: 3, 419 - 426, 26.12.2016

Ahmet Tuğrul Toy Barış Sevim

Abstract

Terrorist
attacks are caused collapsing of many building in the world. A terrorist attack
usually shows itself with an explosion of blasting agent or bomb which can
cause catastrophic effects on buildings, roads, environments and people. An
explosion can damage a building badly, it can collapse walls, spall columns,
beams and blows windows out. So it can be say that the detonation of blasting
causes many economical and life losing. Briefly, structural response of
buildings has to be investigated against to explosives inflicted to a bomb or
other blast agents to avoid this losing. So, this study investigates the
structural response of buildings under blasting effects through a numerical
evaluation. For the purpose, two-storey reinforced concrete (RC) building is
analytically modeled in ANSYS Workbench software considering RC columns, beams,
floors as structural elements and walls and windows as non-structural elements.
Then two tons of TNT as blasting is defined in the building and it is exploded
for 3 micro-second. This explicit analysis is performed using ANSYS AUTODYN
software which is often used to simulate the response of materials to short
duration severe loadings from impact, high pressure or explosions. The deformed
shapes, pressure values and damage ratios are presented with contour diagrams
as results of explicit analysis. The results shows that the blasting is so
affected to structural response of the building 

Keywords

Analytical modeling, Blasting effects, Explicit Analysis, Reinforced concrete building, Structural response

References

• TM 5-1300. Structures to Resist the Effects of Accidental Explosions, U.S. Departments of the Army, Navy, and Air Force, USA, 1990.