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dc.contributor.advisor Baskaran
dc.contributor.author Prasad, RMB
dc.date.accessioned 2019-01-03T00:04:25Z
dc.date.available 2019-01-03T00:04:25Z
dc.identifier.uri http://dl.lib.mrt.ac.lk/handle/123/13754
dc.description.abstract Designing structures against blast loading is becoming more and more important as the number of terrorists attacks are increasing day by day. It is necessary to protect the structures against a credible blast load to ensure the safety of the occupants. In this context, blast resisting facades are incorporated in buildings to avoid the blast pressure waves entering into the building as the highest damage is done by the pressure waves when compared with the fragments moved by an explosion. Pressure waves could damage the axially loaded elements and it may lead to progressive collapse of the structure. This study investigated the behaviour of concrete fins and they were categorized depending on the failure mode which is based on the occupancy levels such as immediate occupancy, life safety and collapse prevention. Concrete fins were analysed using Sap2000 software by taking into account the material nonlinearity and loading nonlinearity. Weight of blasting materials, standoff distance, fin spacing, fin size and reinforcement ratios were varied to create different analysis cases. When the standoff distance was 50m, all the analysis cases were in immediate occupancy level, and it was found that standoff distance of 25m is as the manageable distance in blast. However, standoff distance of 10m resulted many analysis cases exceeded the collapse prevention limit. It was identified that standoff distance of 25m as the manageable limit with respect to the safety and the cost. en_US
dc.language.iso en en_US
dc.title Study on behavior of concrete fins against blast pressure en_US
dc.type Thesis-Abstract en_US
dc.identifier.faculty Engineering en_US
dc.identifier.degree Master of Engineering Degree in Structural Engineering Design en_US
dc.identifier.department Department of Civil Engineering en_US
dc.date.accept 2017-04
dc.identifier.accno TH3504 en_US


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