STUDY OF PROGRESSIVE COLLAPSE ON MULTI-STORIED STEEL STRUCTURE

STUDY OF PROGRESSIVE COLLAPSE ON MULTI-STORIED STEEL STRUCTURE

Ms. Nandini K¹, Mrs. Ashwini G²

¹Student, Master of Technology, Department of civil engineering, East West Institute of Technology, Bangalore.

²Associate Professor, Department of civil engineering, East West Institute of Technology, Bangalore.

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Abstract - Progressive collapse is a catastrophic chain reaction of failure initiated by loss of vertical bearing load element of the structure resulting in damage of a part of the structure or entire structure. In the current study, it is intended to investigate the progressive collapse potential of multi-storied steel structure according to IS 1893:2002. The buildings include regular and irregular plans of total 5 models with column removed at three different locations at first storey in order to study consequences and check safety of adjacent members. Pushover Analysis is also conducted for all the models. The seismic response of steel structure in terms of performance point and the effect of earthquake forces on multi storey building with the help of pushover analysis is carried out in this paper. Modelling and Analysis of the buildings are performed using ETABS 2017.

Key Words:  Progressive collapse, DCR ratio, Pushover Analysis, Performance point, Hinge Formation