A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Proposed design of a CRRP flange-to-flange connection for precast prestressed double tee systems
The current methods of connecting the flanges of precast double tee members, and their respective short comings in specific situations, are described. A new carbon fiber-reinforced polymer (CFRP) flange-to-flange connection is proposed to eliminate the problems associated with repair requirements for the current connections. Design expressions for the currently used mechanical anchorage and the proposed CFRP connection are presented. A comparative calculation for the two systems is given. Based on the limited results the following conclusions can be made: (1) the proposed connection system enhances the performance of precast slab/diaphragm systems; (2) the introduction of the composite materials, whether alone or as a retrofit of an existing mechanical anchorage system, provides a mechanism which allows for a monolithic response under different loading conditions; (3) the proposed connections will inhibit the development of stress concentrations as found in current mechanical anchorage connection and eliminate potential corrosion problems to which the current system is subject; (4) given sufficient investigation and refinement it is believed that this connection could provide a viable repair or retrofitting solution to critical situations; and (5) the current (performed at the time of this work) cost comparison makes this connection cost prohibitive, refer to Table 3.
Proposed design of a CRRP flange-to-flange connection for precast prestressed double tee systems
The current methods of connecting the flanges of precast double tee members, and their respective short comings in specific situations, are described. A new carbon fiber-reinforced polymer (CFRP) flange-to-flange connection is proposed to eliminate the problems associated with repair requirements for the current connections. Design expressions for the currently used mechanical anchorage and the proposed CFRP connection are presented. A comparative calculation for the two systems is given. Based on the limited results the following conclusions can be made: (1) the proposed connection system enhances the performance of precast slab/diaphragm systems; (2) the introduction of the composite materials, whether alone or as a retrofit of an existing mechanical anchorage system, provides a mechanism which allows for a monolithic response under different loading conditions; (3) the proposed connections will inhibit the development of stress concentrations as found in current mechanical anchorage connection and eliminate potential corrosion problems to which the current system is subject; (4) given sufficient investigation and refinement it is believed that this connection could provide a viable repair or retrofitting solution to critical situations; and (5) the current (performed at the time of this work) cost comparison makes this connection cost prohibitive, refer to Table 3.
Proposed design of a CRRP flange-to-flange connection for precast prestressed double tee systems
Tape, William D. (author) / Kennedy, John B. (author) / Madugula, Murty K.S. (author)
Journal of Composites for Construction ; 11 ; 91-98
2007
8 Seiten, 14 Bilder, 3 Tabellen, 18 Quellen
Article (Journal)
English
Proposed Design of a CFRP Flange-to-Flange Connection for Precast Prestressed Double Tee Systems
| British Library Online Contents | 2007
Proposed Design of a CFRP Flange-to-Flange Connection for Precast Prestressed Double Tee Systems
| Online Contents | 2007