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A platform for research: civil engineering, architecture and urbanism
Design of CFRP composite connector for precast concrete elements
Steel plates are used in precast concrete structures for connecting precast concrete members in floor systems or wall panel assemblies. These connections resist shear forces generated by seismic loads. Corrosion frequently attacks these connections. Poor seismic behavior of these connections in actual buildings following earthquakes has been observed. The tests proved that construction of a reliable carbon fiber reinforced plastic (CFRP) connection is feasible. The present paper focuses on the development of a design methodology for the CFRP connection, which is based on established models of CFRP bond length to concrete and laminate theory. The CFRP composite connector proposed herein is nonductile, as is the existing steel embed connector, however, it can be designed to remain elastic with a seismic reduction factor R = 1.0. A methodology for analysis and design of CFRP composite connections between precast concrete walls or precast concrete diaphragms for floor systems has been developed. The capacity of the connection is sensitive to the quality of construction; in particular, highpressure water jet is recommended followed by application of a high strength adhesive and adhesive anchor bolts. For solid precast concrete elements, greater flexibility in the number and location of the adhesive anchors will allow the designer to optimize the seismic retrofit design of the CFRP composite connection.
Design of CFRP composite connector for precast concrete elements
Steel plates are used in precast concrete structures for connecting precast concrete members in floor systems or wall panel assemblies. These connections resist shear forces generated by seismic loads. Corrosion frequently attacks these connections. Poor seismic behavior of these connections in actual buildings following earthquakes has been observed. The tests proved that construction of a reliable carbon fiber reinforced plastic (CFRP) connection is feasible. The present paper focuses on the development of a design methodology for the CFRP connection, which is based on established models of CFRP bond length to concrete and laminate theory. The CFRP composite connector proposed herein is nonductile, as is the existing steel embed connector, however, it can be designed to remain elastic with a seismic reduction factor R = 1.0. A methodology for analysis and design of CFRP composite connections between precast concrete walls or precast concrete diaphragms for floor systems has been developed. The capacity of the connection is sensitive to the quality of construction; in particular, highpressure water jet is recommended followed by application of a high strength adhesive and adhesive anchor bolts. For solid precast concrete elements, greater flexibility in the number and location of the adhesive anchors will allow the designer to optimize the seismic retrofit design of the CFRP composite connection.
Design of CFRP composite connector for precast concrete elements
Konstruktion von Verbindungselementen aus CFRP-Verbundwerkstoff für vorgespannte Beton-Bauelemente
Pantelides, C.P. (author) / Reaveley, L.D. (author) / McMullin, P.W. (author)
Journal of Reinforced Plastics and Composites ; 22 ; 1335-1351
2003
17 Seiten, 8 Bilder, 3 Tabellen, 9 Quellen
Article (Journal)
English
Design of CFRP Composite Connector for Precast Concrete Elements
| British Library Online Contents | 2003
Analysis and Design of CFRP Composite Connector for Precast Concrete Members
| British Library Conference Proceedings | 2001
CFRP Composite Connector for Concrete Members
| British Library Online Contents | 2003
CFRP Composite Connector for Concrete Members
| Online Contents | 2003