COMPARISION OF LOCAL RETROFITTING OF R.C.FRAMES BY LINEAR STATIC METHOD FOR MODERATE AND SEVERE ZONE ON SOFT SOIL

Dhananjaiah.M, B. Shivakumara Swamy, S. Vijaya

Abstract: This paper presents on the comparison of Retrofitting/Rehabilitation of R.C.Frames for moderate and severe zone on soft soil, by using one of the standard finite element software ETABS 9.6.0by LINEAR STATIC METOD. In this case retrofitting is done for columns, where the additional load is added to the existing structure. It means the existing structure has constructed for (G+4), and the additional floors to (G+6), according by using IS1893(PART-I)-2002for the earthquake design, when the over load is applied on the existing structure then the column get weakened and for this column retrofitting is done by R.C.JACKETTING method.it is also called as LOCAL RETROFITTING. ADDITIONAL LOAD concept is taken because, now a days generation population is more, and in the developing countries the purchasing the land is very difficult, because the land value cost very high, and even the land available also is very less in fully developed urban areas, Additional floors concept is more useful for residential as well as commercial purpose without any investment on land. Finally comparing it with moderate zone and severezone on soft soil with storey displacement,storey drift,base shear and percentage pf reinforcement

Keywords: Linear static Analysis, base shear, storey displacement, storey drift, percentage of reinforcement, Retrofitting, confinement.

DOI: https://doi.org/10.15623/ijret.2015.0405108