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Evaluation of Seismic Performance of Gravity Load Designed Reinforced Concrete Frames

IR@SERC: CSIR-Structural Engineering Research Centre, Chennai

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Title Evaluation of Seismic Performance of Gravity Load Designed Reinforced Concrete Frames
 
Creator Santhi, H.M.
Samuel Knight, G.M.
Muthumani, K.
 
Subject Space frames
Brick masonry
Shake table tests
Strength
Stiffness
Seismic effects
Concrete, reinforced
 
Description The seismic performance of reinforced concrete frames designed for gravity loads is evaluated experimentally using a shake table. Two 1:3 scale models of one-bay, three-storied space frames, one without infill and the other with a brick masonry infill in the first and second floors, are tested under excitation equivalent to the spectrum given in IS 1893-2002. From the measured response of the models during excitation, the shear force, interstory drift, and stiffness are evaluated. The effect of masonry infill on the seismic performance of reinforced concrete frames is also investigated. Then, the frames are tested to failure. Severe damage is observed in the columns in the ground floor. The damaged columns are strengthened by a reinforced concrete jacket. The frames are again tested under the same earthquake excitations. The test results showed that the retrofitted frames could sustain low to medium seismic forces due to a significant increase in strength and stiffness.
 
Date 2009
2009
2005
 
Type Article
 
Identifier Journal of Performance of Constructed Facilities, Vol.19, No.4, November 1, 2005, pp.277–282
http://hdl.handle.net/123456789/47
 
Language en
 
Rights It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
 
Publisher American Society of Civil Engineers