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- W3126970274 abstract "Deficient beam-column joints of reinforced concrete (RC) structures designed to older practices and codes often lead to destructive local or global failures. A strengthening technique for these joints based on the use of the new and innovative Carbon-FRP (C-FRP) ropes is presented and investigated. The C-FRP ropes are diagonally placed in superficial notches on the two sides of the joint. Two full scale external substandard joint subassemblages with the same characteristics, one unstrengthened and one strengthened with diagonally applied C-FRP ropes, are constructed and tested in cyclic loading. Special attention has been given to the elaboration of the acquired test measurements. The extracted conclusions are based on the comparative study of the hysteretic responses of the specimens, the observed maximum load envelopes, the comparisons of the joint body shear deformations as measured using diagonally mounted LVTDs, the calculated nominal principal stresses developed in the joint regions, the assessed joint damage as expressed by the damage index by Park and Ang and finally the calculated values of the equivalent damping ratio. From these comparisons it is concluded that application of diagonally mounted C-FRP ropes on the two sides of the joint body of exterior connections is an efficient easy-to-apply technique for the strengthening of substandard RC joints." @default.
- W3126970274 created "2021-02-15" @default.
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- W3126970274 date "2021-01-01" @default.
- W3126970274 modified "2023-09-23" @default.
- W3126970274 title "Strengthening of deficient RC jointswith diagonally placed external C-FRP ropes" @default.
- W3126970274 doi "https://doi.org/10.12989/eas.2021.20.1.123" @default.
- W3126970274 hasPublicationYear "2021" @default.
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