CASE STUDY ON SEISMIC RETROFITTING OF OPEN GROUND STOREY REINFORCED CONCRETE BUILDING
Keywords:
Soft storey, infill, retrofitting, weak storey, flexible, stiffnessAbstract
- Many low-rise and medium rise framed buildings have been constructed in the recent past,
without proper attention paid in their design for wind or earthquake loads. It causes the failure of the
column of the storey during an earthquake which is more severe than the failure of the slabs or beams.
The columns can fail either in shear or in bending. Shear failure occurs mainly because of the inadequate
column sizes to resist the seismic loads and inadequate lateral ties. In this paper study is carried out on
existing multistoried RC building with soft storey, located in seismic zone III. In this paper different
mathematical 3D models are prepared for different retrofitting techniques. All models are analyzed using
software STADD PRO V8i. Comparison of these models is presented in terms of displacement, storey
drift, bending moment, area of steel. Quantity and cost for steel and concrete is calculated.
