%0 Journal Article %T Limitations in Simplified Approach in Assessing Performance of Fa ade under Blast Pressures %A Lumantarna R. %A Ngo T. %A Mendis P. %J Civil Engineering Dimension %D 2012 %I Petra Christian University %X The main function of building facades, which often consists of glazing windows, is to provide protection to the occupants and contents of the building from external hazards. In a blast event, the facade component of a building may become the weakest link of the structure, whereby its breach may lead to blast pressure ingress and hazardous projectiles into a structure. This paper reports part of a study to establish the performance of glass windows under blast pressures. Two modelling techniques were used to simulate the response of a fa ade panel. They are the Single Degree of Freedom (SDOF) modelling technique and the Finite Element (FE) modelling technique. Although the SDOF approach can be used with a reasonable degree of accuracy, the limitations of its basic assumption lead to loss of details in the idealisation process. This paper presents an attempt to establish performance indices of a fa ade panel, and to identify the discrepancies between simplified approach and the detailed numerical modelling approach analysis. %K Blast pressures %K negative phase %K explosion %K P-I curve %K fa ade. %U http://puslit2.petra.ac.id/ejournal/index.php/civ/article/view/18525