Abstract
Seismic regions are characterized by reinforced concrete (RC) structures that have been designed without seismic provisions. As the structural upgrade of such structures becomes necessary, one of the approaches that recent design guidelines suggest is that of the hierarchy of strength. By increasing the strength and ductility of critical components, their brittle and catastrophic failure is prevented and the occurrence of more desirable mechanisms is promoted. This approach allows improving the global behavior of the structure. The key issue of strengthening design of RC frames is represented by the beam-column connection. This paper presents a technique based on fiber-reinforced polymer (FRP) composites for the seismic upgrade of RC beam-column connections that was validated with tests on 11 initially underdesigned specimens. The results of the experimental investigation are presented, and a discussion on how different parameters influenced the behavior of the samples in terms of strength or ductility, or both, is offered.
| Original language | English |
|---|---|
| Pages (from-to) | 699-707 |
| Number of pages | 9 |
| Journal | ACI Structural Journal |
| Volume | 101 |
| Issue number | 5 |
| State | Published - Sep 1 2004 |
| Externally published | Yes |
Fingerprint
Keywords
- Beams
- Columns
- Ductility
- Fibers
- Polymers
- Reinforcement
ASJC Scopus subject areas
- Building and Construction
- Civil and Structural Engineering
- Materials Science(all)
Cite this
Selective upgrade of underdesigned reinforced beam-column joints using carbon fiber-reinforced concrete. / Prota, Andrea; Nanni, Antonio; Manfredi, Gaetano; Cosenza, Edoardo.
In: ACI Structural Journal, Vol. 101, No. 5, 01.09.2004, p. 699-707.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Selective upgrade of underdesigned reinforced beam-column joints using carbon fiber-reinforced concrete
AU - Prota, Andrea
AU - Nanni, Antonio
AU - Manfredi, Gaetano
AU - Cosenza, Edoardo
PY - 2004/9/1
Y1 - 2004/9/1
N2 - Seismic regions are characterized by reinforced concrete (RC) structures that have been designed without seismic provisions. As the structural upgrade of such structures becomes necessary, one of the approaches that recent design guidelines suggest is that of the hierarchy of strength. By increasing the strength and ductility of critical components, their brittle and catastrophic failure is prevented and the occurrence of more desirable mechanisms is promoted. This approach allows improving the global behavior of the structure. The key issue of strengthening design of RC frames is represented by the beam-column connection. This paper presents a technique based on fiber-reinforced polymer (FRP) composites for the seismic upgrade of RC beam-column connections that was validated with tests on 11 initially underdesigned specimens. The results of the experimental investigation are presented, and a discussion on how different parameters influenced the behavior of the samples in terms of strength or ductility, or both, is offered.
AB - Seismic regions are characterized by reinforced concrete (RC) structures that have been designed without seismic provisions. As the structural upgrade of such structures becomes necessary, one of the approaches that recent design guidelines suggest is that of the hierarchy of strength. By increasing the strength and ductility of critical components, their brittle and catastrophic failure is prevented and the occurrence of more desirable mechanisms is promoted. This approach allows improving the global behavior of the structure. The key issue of strengthening design of RC frames is represented by the beam-column connection. This paper presents a technique based on fiber-reinforced polymer (FRP) composites for the seismic upgrade of RC beam-column connections that was validated with tests on 11 initially underdesigned specimens. The results of the experimental investigation are presented, and a discussion on how different parameters influenced the behavior of the samples in terms of strength or ductility, or both, is offered.
KW - Beams
KW - Columns
KW - Ductility
KW - Fibers
KW - Polymers
KW - Reinforcement
UR - http://www.scopus.com/inward/record.url?scp=5644241224&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=5644241224&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:5644241224
VL - 101
SP - 699
EP - 707
JO - ACI Structural Journal
JF - ACI Structural Journal
SN - 0889-3241
IS - 5
ER -