Nowadays, because of the increasing terrorist attacks around the urban areas, designing buildings by contrast of resulted loads of blast came into consideration particularly in some sensitive buildings & vital arteries.When a blast occurs, the resulted emissions in environment leads to appearance of several penalties and endangers to the human life.Steel structures generally are designed on the basis of standard seismic and gravity loads, it is necessary to investigate the implantation of these structures under mars landing kale the impact of the loads originated from blast.
This article presents numerical studies of two-dimensional structural models with 2 and 5 stories which are including simple steel frame system in addition to CBF.The models were analyzed by nonlinear dynamic analysis method using the instruction UFC 3-340-02 in two adverse levels of blast loads by SAP 2000 software.In this study structural models are designed and analyzed using two designing methods: outdoor round junction box for 3 screw base cameras the basic performance design, and Load and Resistance Factor Design (LRFD).
Finally, two set of results are compared in detail.