Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Strengthening of Bridge G-270 with Externally Bonded CFRP Sheets
This report presents the results of a pilot study to apply externally bonded Carbon Fiber Reinforced Polymer (CFRP) sheets to strengthen a simple span reinforced concrete solid slab bridge built in 1922. Strengthening with CFRP sheets was accomplished in three days without traffic interruption, and preparation consisted of only light sandblasting. Bridge G-270 is the only load-posted structure on a heavy truck route that serves a lead mining operation and the objective was to strengthen the bridge to allow removal of the load posting. The laboratory testing included the static flexural test of two full-scale beams, designed as a unit strip from the existing bridge deck, and the fatigue bond test of coupon-type specimens. Two reinforced concrete beams, a control beam and a beam strengthened with externally bonded CFRP were tested under four-point bending. Coupon-type specimens of unreinforced concrete beams with a reversed T-shaped cross-section and with a CFRP sheet applied to the bottom were tested. The purpose was to investigate the behavior of bond between CFRP sheets and concrete under fatigue loading.
Strengthening of Bridge G-270 with Externally Bonded CFRP Sheets
This report presents the results of a pilot study to apply externally bonded Carbon Fiber Reinforced Polymer (CFRP) sheets to strengthen a simple span reinforced concrete solid slab bridge built in 1922. Strengthening with CFRP sheets was accomplished in three days without traffic interruption, and preparation consisted of only light sandblasting. Bridge G-270 is the only load-posted structure on a heavy truck route that serves a lead mining operation and the objective was to strengthen the bridge to allow removal of the load posting. The laboratory testing included the static flexural test of two full-scale beams, designed as a unit strip from the existing bridge deck, and the fatigue bond test of coupon-type specimens. Two reinforced concrete beams, a control beam and a beam strengthened with externally bonded CFRP were tested under four-point bending. Coupon-type specimens of unreinforced concrete beams with a reversed T-shaped cross-section and with a CFRP sheet applied to the bottom were tested. The purpose was to investigate the behavior of bond between CFRP sheets and concrete under fatigue loading.
Strengthening of Bridge G-270 with Externally Bonded CFRP Sheets
R. Mayo (Autor:in) / A. Nanni (Autor:in) / S. Watkins (Autor:in) / M. Barker (Autor:in) / T. Boothby (Autor:in)
1999
96 pages
Report
Keine Angabe
Englisch
Shear Strengthening of RC Beams with Externally Bonded CFRP Sheets
| British Library Online Contents | 2001
TECHNICAL PAPERS - Shear Strengthening of RC Beams with Externally Bonded CFRP Sheets
| Online Contents | 2001
Strengthening of shear-critical RC beams: alternatives to externally bonded CFRP sheets
| Online Contents | 2017