Pollution Research Paper

Vol.32, Issue 02, 2013; Page No.(261-269)

DYNAMIC BEHAVIOR OF R.C.C FRAME RETROFITTED WITH GFRP DOUBLE LAYER

D. SATHIES KUMAR, G. SHANKAR AND S. SURESH BABU

Abstract

With population explosion and increase in pollution have become the necessities of the present day for Optimum use of resources in earth and reduction in waste. The debris from the demolition of building by natural or manmade becomes tedious to disposal the same. The earthquake result in create large amount of building debris. The waste could be reduced by reuse of repaired or old buildings. Rehabilitation and reuse of damaged building result in earthquake could be reducing the pollution due to debris. The GFRP wrapping is one of the rehabilitation methods used widely in field. As the structures become taller and taller, apart from dead load and live loads the structures have to withstand lateral forces. The lateral loads due to wind and earthquake, are a matter of great concern. These require special considerations in the design of all structures. For the selected reinforced concrete structures with the known structural geometry, reinforcement and sizes of structural members, the strength of critical section in beams and columns can be assessed experimentally. In the present study reduced scale model of RCC frame were cast as per IS 456-2000 reinforcement detailing. Once the strength of the critical section is evaluated, the diagnostics of the structures is carried out. The frame was tested under cyclic loading applied by means of actuator and behavior of frame was noted up to failure. Load- Displacement Transducers to register the horizontal displacement, upon the loading the RCC frame under controlled conditions, which include controlled stress and controlled strain conditions. Low frequency accelerometers used to measure the absolute accelerations at critical points. Controlling unit was used to monitor the displacement and vibration parameters. The vibration parameters were plotted against time for each specimen. Based on experimental investigation important conclusion were obtained.

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