Study on Mass Lumping Methods of Framed Structures

Abstract

Usually the seismic weight (W) is found out by lumping the total mass of the structure at the beam column junctions in a building. Lumping of mass in a RC framed structure can be achieved using different techniques. This paper does a comparison of different techniques used to lump the masses in a structure, along with the response of each method on the behavior of a multistoreyed building. The accuracy of the methods is finalized by comparing the analysis results with a building analysed using time history method. Finite Element package SAP 2000 V14.0.0 is used for the study.