Analytical Investigation of the Effects of Topographic Irregularities on Peak Pressure due to Blast Waves

Document Type : Original Article

Authors

1 Assistant Professor, Department of Civil Engineering, Semnan University

2 MSc Student in Structural Engineering, Department of Civil Engineering, Ferdowsi University of Mashhad

Abstract

Effects of propagation and scattering of high pressure waves same as blast waves are always interested for researchers. In this paper, the additional air pressure due to blast waves near topographic irregularities is considered. Regarding this study, it is clear that additional pressure from shock waves is quite different respect to the pressure in a smooth area and this pressure is involved with the weight of detonation and distance
between detonation and the target point. Also in this paper, the total force s which is apply to a building in smooth location and the location near topographic irregularities is calculated and compared.

Keywords


[1] Charles E. Needham., “Blast Waves”, New York, Springer, (2010)
[2] Mrityunjaya R. Y., Trivikram N.L., Vasanth S., Ramesh V., “Simulation of explosion in train and bridge”, 3rd ANSA & ETA International Conference,Halkidiki Greece, (2009)
[3] JIN X.L. DENG R.B., “Numerical Simulation of Bridge Damage under Blast Loads”, WSEAS TRANSACTIONS on COMPUTERS، 9 (8), (2009), 1564-1574
[4] Trivikram N.L., Vasanth S., Ramesh V. Mrityunjaya R.Y., “Simulation of explosion in train and bridge, 3rd ANSA & ETA International Conference, Halkidiki Greece, (2009)
[5] Xie X., Wang R. Yang Y., “Numerical simulation of dynamic response of operating metro tunnel”, Journal of Rock Mechanics and Geotechnical Engineering، 2 (4), (2010), 373–384
[6] Yi Z. Agrawal A.K., “Blast Load Effects on Highway Bridges”, New York, USA: University Transportation Research Center, (2009)
]7[  محمدایمان خداکرمی، یونس نوری، «بررسی و تعیین اضافه فشار بیشینه وارد بر ابنیه فنی راه و زیرساخت­های حمل ونقل واقع در مجاورت عوارض توپوگرافی تحت اثرانفجار»،مجله مهندسی زیرساخت­های حمل و نقل، سال اول، شماره 1، پاییز 1392، صفحه 33 تا 44
]8[ دفتر تدوین و ترویج مقررات ملّی ساختمان، مبحث ششم بارهای وارد بر ساختمان، 1385