نویسندگان
مهندس عمران-سازه
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In this article to investigate the blast effects on structure and its performance determination, a building with reinforced concrete frames has been designed according to Iranian earthquake standard No.2800-05 and a single frame of it has been modeled with ABAQUS package and subjected to blast loads in accordance with the Iranian National Building Code of draft Part21 considering material and geometrical nonlinearities. The results indicate that the blast danger levels given in the Part21 do not have a reasonable relation with each other's, neither in over pressure nor impulse. For example in the first blast danger level (the severe one), none of the columns could pass the life safety level (L.S.) of performance, but in all other blast danger levels, all column could pass Immediate Occupancy level (I.O.). Also the side way displacement is so little in the frame that in all blast loads could pass I.O. level. Also the code drift criterion is so that in all blast danger levels, I.O. level is achieved. According to these results, it seems that blast danger levels and also drift criterion should be revised.
کلیدواژهها [English]
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