Performance of RC Frames with Hybrid Reinforcement Under Reversed Cyclic Loading

Document Type

Article

Publication Date

7-2005

Publication Title

Materials and Structures

Volume

38

Issue

6

First page number:

627

Last page number:

637

Abstract

The use of FRP as reinforcement in concrete structures has been growing rapidly. A potential application of FRP reinforcement is in reinforced concrete (RC) frames. However, due to FRP's predominantly elastic behaviour, FRP-RC members exhibit low ductility and energy dissipation. Hybrid steel-FRP reinforcement can be a viable solution to the lack of ductility of FRP-RC members. Using two layers of reinforcement in a section, FRP rebars can be placed in the outer layer and steel rebars in the inner layer away from the effects of carbonation and chloride intrusion. Combined with the use of FRP stirrups, this approach can enhance the corrosion resistance of RC members. However, current design standards and detailing criteria for FRP-RC structures do not provide detailed seismic provisions. In particular, the design and detailing of beam-column joints is a key issue in seismic design. During recent earthquakes, many structural collapses were initiated or caused by beam-column joint failures. Thus, research is needed to gain a better understanding of the behaviour of FRP and hybrid FRP-steel-RC under seismic loading. In this study, three full-scale beam-column joint specimens reinforced with steel, GFRP and a hybrid GFRP-steel configuration, respectively were tested in order to investigate their performance in the event of an earthquake.

Keywords

Buildings--Earthquake effects; Buildings; Reinforced concrete--Earthquake effects; Concrete; Concrete beams; Earthquake resistant design; Earthquakes; Elasticity; Reinforced concrete; Reinforced concrete—Corrosion; Reinforced concrete--Corrosion--Prevention

Disciplines

Civil and Environmental Engineering | Construction Engineering and Management | Geophysics and Seismology | Structural Engineering

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

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