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SEISMIC PERFORMANCE COMPARISION OF COMMERCIAL BUILDING STRENGTHENED USING RC COLUMN JACKETING ON 2 AND 4 FACESAuthors: Niharika Peddaprolu,Pradeep Kumar Ramancharla Conference: 17 th World Conference on Earthquake Engineering (WCEE 2020) Pages: 1-5 Location Japan Date: 2020-09-13 Report no: IIIT/TR/2020/91 AbstractIn India due to rapid economic development and establishment of new companies, many existing buildings were given permissions to raise the number of floors. This addition of new floors to the existing building will increase the loads on the columns which may not be designed for the additional load. Therefore, such columns need to be strengthened to carry the additional loads. RC jacketing is the most preferred strengthening technique to increase the load carrying capacity of the existing building. In this paper, comparison of two RC buildings i.e., One with columns strengthened only on 2 faces and another with columns strengthened on all four sides with RC jacketing is presented. In 2-face RC jacketing, U shape stirrups are used and for 4-face jacketing closed stirrups are used. Behavior of columns strengthened on all four sides using RC jacketing is more satisfactory in the case of immediate occupancy. In case of high seismic zones under cyclic loading, the seismic performance of RC jacketed columns on 2 sides is not desirable for immediate occupancy. Full paper: pdf Centre for Earthquake Engineering |
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