Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 39, Number 4, August25 2011 , pages 499-520 DOI: https://doi.org/10.12989/sem.2011.39.4.499 |
|
|
|
Effectiveness of some conventional seismic retrofitting techniques for bare and infilled R/C frames |
||
D.J. Kakaletsis, K.N. David and C.G. Karayannis
|
||
| Abstract | ||
| The effectiveness of a technique for the repair of reinforced concrete members in combination with a technique for the repair of masonry walls of infilled frames, damaged due to cyclic loading, is experimentally investigated. Three single - story, one - bay, 1/3 - scale frame specimens are tested under cyclic horizontal loading, up to a drift level of 4%. One bare frame and two infilled frames with weak and strong infills, respectively, have been tasted. Specimens have spirals as shear reinforcement. The applied repair technique is mainly based on the use of thin epoxy resin infused under pressure into the crack system of the damaged RC joint bodies, the use of a polymer modified cement mortar with or without a fiberglass reinforcing mesh for the damaged infill masonry walls and the use of CFRP plates to the surfaces of the damaged structural RC members, as external reinforcement. Specimens after repair, were retested in the same way. Conclusions concerning the effectiveness of the applied repair technique, based on maximum cycles load, loading stiffness, and hysteretic energy absorption capabilities of the tested specimens, are drawn and commented upon. | ||
| Key Words | ||
| infilled RC frames; masonry strength; repair technique; experimental results | ||
| Address | ||
| D.J. Kakaletsis and K.N. David: Technological Educational Institution of Serres, Serres 62124, Greece C.G. Karayannis: Democritus University of Thrace, Xanthi 67100, Greece | ||