Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cracking behavior of ultra-high-strength prestressed reinforced concrete beams
An experimental program was conducted to investigate the flexural and shear cracking behavior of normal strength (40 MPa), high strength (100 MPa) and ultra-high-strength (160 MPa) RC (reinforced concrete) and PRC (prestressed reinforced concrete) beams. The flexural cracking behavior was investigated by using rectangular shaped beams while shear cracking behavior was investigated by using I-shaped beams. All beams were tested under the four point static monotonic loading by focusing on the influence of compressive strength of concrete and prestressing force on flexural crack width and shear crack width. During the loading test crack width was monitored at locations close to strain gage attached by using a digital microscope. It was found that flexural and shear cracking loads were increased with increasing concrete strength. In addition, UHSC (ultra high strength concrete) specimen shows more brittle failure compared to normal strength concrete specimens. Shear crack width and stirrup strain show linear relationship in all specimens. Further, shear crack widths are smaller in high strength and ultra high strength PRC specimens than those in normal strength PRC specimen. The results of the experimental program are presented and discussed in this paper.
Cracking behavior of ultra-high-strength prestressed reinforced concrete beams
An experimental program was conducted to investigate the flexural and shear cracking behavior of normal strength (40 MPa), high strength (100 MPa) and ultra-high-strength (160 MPa) RC (reinforced concrete) and PRC (prestressed reinforced concrete) beams. The flexural cracking behavior was investigated by using rectangular shaped beams while shear cracking behavior was investigated by using I-shaped beams. All beams were tested under the four point static monotonic loading by focusing on the influence of compressive strength of concrete and prestressing force on flexural crack width and shear crack width. During the loading test crack width was monitored at locations close to strain gage attached by using a digital microscope. It was found that flexural and shear cracking loads were increased with increasing concrete strength. In addition, UHSC (ultra high strength concrete) specimen shows more brittle failure compared to normal strength concrete specimens. Shear crack width and stirrup strain show linear relationship in all specimens. Further, shear crack widths are smaller in high strength and ultra high strength PRC specimens than those in normal strength PRC specimen. The results of the experimental program are presented and discussed in this paper.
Cracking behavior of ultra-high-strength prestressed reinforced concrete beams
Rissverhalten von ultrahochfesten vorgespannten Stahlbetonbalken
Silva, Sudhira de (Autor:in) / Mutsuyoshi, Hiroshi (Autor:in) / Asamoto, Shingo (Autor:in) / Maekawa, Atsushi (Autor:in)
2008
8 Seiten, 14 Bilder, 8 Tabellen, 10 Quellen
Aufsatz (Konferenz)
Englisch
Shear Cracking Behavior of Prestressed Beams Made of High Strength Concrete
| British Library Conference Proceedings | 2000
Flexural behavior of high-strength, steel-reinforced, and prestressed concrete beams
| Springer Verlag | 2021
Behavior of Prestressed Ultra High Performance Concrete Beams
| British Library Online Contents | 2009
Behavior of Prestressed Ultra High Performance Concrete Beams
| Trans Tech Publications | 2008
Behavior of Prestressed Ultra High Performance Concrete Beams
| British Library Conference Proceedings | 2009