Soil Structure Interaction Of Plan Irregular RC Structures In Seismic Zone-5

Abstract

In the present study to account the effect of support settlement modulus of sub grade reaction(ks) is considered in modeling of buildings of height G+7 RCC structures having material properties M30 grade for concrete and Fe415 for reinforcing steel and structure dimensions height is 26m from the foundation or footing top, three different support conditions are considered having modulus of sub grade reaction value ks =10,000kN/m³, ks =20,000kN/m³, ks =40,000kN/m³ and fixed base and foundation depth is considered as 2m below the ground level structures are modeled using STAAD.Pro in seismic zone V as per IS 1893-2002 and the plan irregular shapes considered are rectangular, L and T, It is observed that higher the modulus of sub grade reaction value (ks) lesser will be seismic effect on structures.