Investigation of the impact on different type of toll plaza crash barriers by numerical approach

Prasetijo, Joewono and Mohd Hanipiah, Siti Nur Fatihah and Ambak, Kamarudin and David Daniel, Basil and Md Rohani, Munzilah and Musa, Wan Zahidah (2016) Investigation of the impact on different type of toll plaza crash barriers by numerical approach. ARPN Journal of Engineering and Applied Sciences, 11 (6). ISSN 18196608

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Abstract

The construction of the highway network in Malaysia is growing rapidly along with the toll plazas facilities and safety constructions such as toll plaza barriers. However, the issue of accidents involving crash barriers at toll plazas turns into horrific nightmare for road users. It have been investigated that accidents at the toll plaza gates due to impacts of the vehicles with concrete crash barriers with results in damage and fatalities. Therefore, the following study is to conduct a simulation test for crash barrier Tensile Wire Fracture toughness (TWFT) system. TWFT system that used hot rolled galvanized steel materials with small displacement rate of 4.0 x 10-4 m which was considered suitable as a replacement for the existing concrete crash barrier. The data analysis were generated by the software Elfen. The graph of displacement, direct shear and effective stress were generated as for the hot-galvanizes steel material model. Elastic energy, kinetic energy and inelastic dissipated energy were compared between these two materials. The results shows that the hot-rolled galvanized steel have the energy to return the material to its original form and the level of damage shows that the concrete material failure are greater than the hot rolled galvanized steel materials. In conclusion, the material for a new alternative crash barrier is likely to reduce the rate of death due to accident and damage with regards to road furnitures and vehicles.

Item Type:Article
Uncontrolled Keywords:Accidents; crash barrier; numerical study; crash simulation; fracture toughness
Subjects:T Technology > TE Highway engineering. Roads and pavements
Divisions:Faculty of Civil and Environmental Engineering > Department of Infrastructure and Geomatic Engineering
ID Code:8529
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:21 Jun 2017 11:44
Last Modified:21 Jun 2017 11:44

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