A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Strengthening prestressed-concrete girders with externally prestressed PBO fiber reinforced polymer sheets
This study aims at developing an innovative strengthening system with externally bonded prestressed PBO (Polypara-phenylene-Benzo-bis-Oxazole) fiber reinforced polymer (PFRP) sheet, which present equal or higher strength and stiffness in comparison with high strength type of carbon fibre reinforced polymer (CFRP) sheets and great performance in energy absorption superior than other fiber reinforced polymer (FRP) sheets such as aramid and carbon FRP sheets. An experimental program was carried out to confirm the strengthening effects on load-carrying capacity, stiffness characteristics, ductility, and resistance of crack opening of prestressed concrete girders. The main parameters studied are the prestress level, the numbr of PFRP sheet layers, and resin impregnation of PBO fibers before or after sheet prestressing. An analytical study is also performed in order to investigate the flexural behavior of PC girders strengthened with prestressed PFRP sheets.
Strengthening prestressed-concrete girders with externally prestressed PBO fiber reinforced polymer sheets
This study aims at developing an innovative strengthening system with externally bonded prestressed PBO (Polypara-phenylene-Benzo-bis-Oxazole) fiber reinforced polymer (PFRP) sheet, which present equal or higher strength and stiffness in comparison with high strength type of carbon fibre reinforced polymer (CFRP) sheets and great performance in energy absorption superior than other fiber reinforced polymer (FRP) sheets such as aramid and carbon FRP sheets. An experimental program was carried out to confirm the strengthening effects on load-carrying capacity, stiffness characteristics, ductility, and resistance of crack opening of prestressed concrete girders. The main parameters studied are the prestress level, the numbr of PFRP sheet layers, and resin impregnation of PBO fibers before or after sheet prestressing. An analytical study is also performed in order to investigate the flexural behavior of PC girders strengthened with prestressed PFRP sheets.
Strengthening prestressed-concrete girders with externally prestressed PBO fiber reinforced polymer sheets
Festigkeitserhöhung von Spannbetonträgern mittels mit extern vorgespannten PBO-Fasern verstärkten Polymerplatten
Wu, Z.S. (author) / Iwashita, K. (author) / Hayashi, K. (author) / Higuchi, T. (author) / Murakami, S. (author) / Koseki, Y. (author)
Journal of Reinforced Plastics and Composites ; 22 ; 1269-1286
2003
18 Seiten, 20 Bilder, 4 Tabellen, 11 Quellen
Article (Journal)
English
Doppel-T-Träger , Spannbeton , Stahlbeton , Festigkeitserhöhung , faserverstärkter Kunststoff , Epoxidharz , Oxazol , Phenylen , hochfeste Faser , Hochmodulfaser , Umhüllung , Duktilität , Energieabsorption , Steifigkeit , Biegefestigkeit , mechanische Vorspannung , Risswiderstand , Upgrading , Belastbarkeit , Verbundplatte
| British Library Online Contents | 2003
Strengthening Prestressed-concrete Girders with Externally Prestressed PBO Fiber Sheets
| British Library Conference Proceedings | 2002
Strengthening Prestressed-concrete Girders with Externally Prestressed PBO Fiber Sheets
| British Library Conference Proceedings | 2002
Evaluation of Prestressed Concrete Girders Strengthened with Carbon Fiber Reinforced Polymer Sheets
| Online Contents | 2004
Strengthening PC Structures with Externally Prestressed PBO Fiber Sheets
| British Library Conference Proceedings | 2001