MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

The accidental fire generally tends to explosion in the city environment surrounded with combustible materials, and vice versa. This leads to the fact that the structures are in danger of combined effect of fire and blast. This study mainly considers the combined effect of fire and blast on SFRC panels and compares the results with that of plain concrete panels. This is the analytical study done using ANSYS 16 Workbench as finite element analysis tool. The ISO834 standard fire curve is used for temperature effect and two loads (0.1 kg and 0.2kg) with varying stand-off distances is considered. The results in form of total deformation, equivalent stress and equivalent strain are obtained.

World University root node

School of Civil Engineering

Engineering and Technology

International Research Journal of Engineering and Technology (IRJET)

Finite Element Analysis of Steel Fiber Reinforced Concrete Composite Panels Subjected to Combined Effect of Fire and Blast

The increased number of terrorist attacks mainly in the last couple of years has shown that the impact of blast loads on buildings is a serious matter that we should consider during the building design process. The research has shown that the two joints (i.e. corner joint and exterior joint) are tested for blast loading of 6kgTNT charge effect with varying scaled distances (0.5m, 0.75m, 1m). Both joints are tested for both conditions that are in presence of steel fibers and in absence of steel fibers. Every steel designer should design Beam-Column joint for blast resistant as the beam-column joint become weak during blast. While these terrorist attacks are rare events, dynamic loads, i.e. blast loads, always need to be measured carefully much like earthquake loads and wind loads. The investigation of behavior of Beam-Column joint with and without Steel Fiber Reinforced Concrete under blast loading is presented in this paper using finite element method. Individual behavior of Beam-Column joint under blast loading before and after adding Steel Fibers is studied in this paper.

Analysis of Steel Fiber Reinforced Concrete Beam-Column Joint Subjected to Blast Loading by Finite Element Method

Internal explosion that occurs within a structure causes multiple reflections of the blast wave and a multiimpact effect of the wave on the structure is observed. This leads to a greater blast load that acts for an extended time duration than compared to when the explosion occurs externally under an open environment. This paper illustrates the calculation of different parameters of the pressure wave produced as a result of internal and external explosion. Then, the behaviour of a typically reinforced concrete structure subjected to a blast load of 50 kg TNT placed both internally and externally was analytically determined. The time for which the structure experienced the internal pressure was 7.58 times more than that for external explosion. The results showed that maximum deformation for internal blast for all structural components was several times that of for an external blast. The minimum difference of deformations for the two blast scenarios was observed in the front wall, where the maximum deformation for the internal explosion was 9.97 times more. Whereas, the maximum difference was at the slab where the internal blast produced a deformation that was 34.89 times more than the corresponding value for external explosion. Also, deformations exceeded the maximum limits of deflections as per IS 456:2000 for internal blast loading while they were within limits for external blast loading.

Comparative analysis of reinforced concrete structure subjected to internal and external blast loading by finite element method

Due to the recent increase in various terrorist activities all over the world, the safety of the structures should be designed to resist bomb blasts. Blast loads are basically dynamic loads of a type that needs to be attentively calculated like wind and seismic loads and the structures should be designed by considering them to make it blast resistant. The behavior of Steel Fibre Reinforced Concrete (SFRC) under the condition of blast loading is presented in this paper. The panel of 50mm thickness is taken into consideration. The effect of varying the aspect ratio of fibres in the fibre reinforced concrete is studied.

INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH

Comparative Study On SFRC Composites Under Blast Load By Varying Aspect Ratio Of Fibres

The increased number of terrorist attacks mostly in the last few years has shown that the effect of blast loads on buildings is a serious matter which we should be considered during design process of buildings. Although these kinds of terrorist attacks are exceptional cases, man-made disasters; dynamic loads i.e. blast loads are really need to be carefully calculated just like earthquake and wind loads. The investigation of behavior of Ferrocement composites and Steel Fibre Reinforced Concrete composites under blast loading is presented in this paper. Individual ferrocement panels and Steel Fibre Reinforced Concrete panels are tested analytically under blast load, and the behavior against blast loading is then studied.

International Journal of Scientific & Technology Research

Comparative study of steel fiber reinforced concrete panels and ferrocement panels under blast loading by FEM analysis

Normally concrete structures are designed for static loads. Sometime such structures are coming across the dynamic loads arising from military activities, terrorist activities. Therefore, this investigation will undertake to provide the needed information about the influence of various parameters on performance characteristics of steel fiber reinforced concrete and increased need to strengthen concrete structures. This study aims to investigate the impact resistance of fiber reinforced concrete (FRC), incorporated with steel fibers at various dosages. For this, a drop weight test was performed on the 28 days cured plain and fiber reinforced concrete specimens. End hook, Crimped and flat steel fiber of length 35 mm and an aspect ratio equal to 80, 50, 77.77, 46.66 were added to concrete in proportion 1.5% with water cement ratio of 0.40. The experimental test results of steel reinforced fiber concrete are compared with plain concrete and conclusions are arrived.