Numerical Simulation of Air Shock Wave Propagation Effects in Reinforced Concrete Columns

2020 ◽  
Vol 12 (1) ◽  
pp. 12-22
Author(s):  
Ebrahim Akhlaghi
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Low Cost ◽  
Near Field ◽  
Research Work ◽  
Concrete Columns ◽  
Rc Columns ◽  
Reinforced Concrete Columns ◽  
Finite Element Package

Reinforced concrete has been shown to be a desirable material of choice in blast resistant structures due to its availability, relatively low cost, and its inherent ability to absorb energy produced by explosions. Most research work investigating the behaviour of reinforced concrete columns to blast loading have concentrated on their response to planar loading from far-field explosions. Limited amount of work is available on the effects of near-field explosion on the behaviour of reinforced concrete columns. This study is aimed to investigate effects of explosive loads on RC column by using ALE method. Commercial finite element package, LS-DYNA is used to simulate the behavior of blast wave on RC columns. Numerical simulation is validated against experimental work done in literature. The experience gained from this research provides valuable information for the development of the finite element modeling of real blast load effects on RC columns.

scholarly journals Near-field explosion effects on reinforced concrete columns: an experimental investigation

2018 ◽  
Vol 45 (4) ◽  
pp. 289-303 ◽  
Author(s):  
Abass Braimah ◽  
Farouk Siba
Keyword(s):  
Reinforced Concrete ◽  
Experimental Testing ◽  
Near Field ◽  
Axial Loading ◽  
Concrete Columns ◽  
Load Level ◽  
Experimental Program ◽  
Rc Columns ◽  
Reinforced Concrete Columns ◽  
Scaled Distance

Explosion effects on structures have been an area of active research over the past decades. This is due to the increasing number of terrorists’ action against infrastructures. Although significant amount of work is continuing on the effects of explosions on infrastructures, experimental work involving live explosion testing is limited. Moreover, experimental testing of reinforced concrete (RC) columns subjected to near-field explosions is scant. This paper presents results of an experimental program designed to investigate the effects of near-field explosions on RC columns with different tie spacing and at different scaled distances. The results show that the response of columns is strongly dependent on scaled distance. As the scaled distance increased the severity of damage reduced; seismic columns showed better response. The effect of axial loading was also observed to increase the level of damage on reinforced concrete columns at the axial load level and blast loads considered in the test program.

Numerical Simulation of Reinforced Concrete Columns in Mid-Rise Buildings Subjected to Close by Blast Loading

2020 ◽  
Author(s):  
Abhishek Pathak ◽  
Rahul Raman ◽  
Yekaterina Shestakova ◽  
Amjad Aref ◽  
Husham Almansour
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Blast Loading ◽  
Concrete Columns ◽  
Reinforced Concrete Columns
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