The Innovation and Application of UHPFRC Bridges in Japan

Tanaka, Yoshihiro; Maekawa, Koichi; Kameyama, Yutaka; Ohtake, Akio; Musha, Hiroyuki; Watanabe, Norio

doi:10.1002/9781118557839.ch12

Cited by 26 publications

(16 citation statements)

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“…4. (4) in which, Es and Ep are the elastic modulus of steel bar and prestressed tendons, respectively; εy and εpy are elastic limit strain of steel bar and prestressed tendons, respectively; εu and εpu are hardening limit strain of steel bar and prestressed tendons, respectively; fy and fpk are yield stress of steel bar and prestressed tendons, respectively; fpu is ultimate strength of prestressed tendons.…”

Section: Fe Modelmentioning

confidence: 99%

“…It has a broad application prospects in civil engineering, including bridges, buildings, nuclear engineering, municipal structures, ocean engineering, due to its different roles in reducing the structural self-weight, enhancing the bearing capacity, and improving the ductility [2,3]. At present, the UHPC box girder had been used for bridges in Japan [4], Austria [5,6], and Malaysia [7,8]. Compared to I-shaped or T-shaped girders, the box girders offer better resistance to torsion, which is particularly of benefit if the bridge deck is curved in plan.…”

Section: Introductionmentioning

confidence: 99%

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Research on flexural behavior of the externally prestressed UHPC box girder

Su¹,

Du²,

Chen³

et al. 2018

JACF

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Experiment on an externally prestressed ultra high performance concrete (UHPC) box girder subjected to symmetrical concentric loads is carried out. The behavior of the test girder is investigated, including the load-deflection curve at mid-span, cracking pattern, strain distribution, and failure mode. The mid-span nominal moment capacity of the girder is analyzed. Test results show that the anti-cracking capacity of UHPC box girder is better than that of a normal prestressed concrete (PC) girder. The tensile property of UHPC should be taken into account in the process of calculating mid-span nominal moment capacity of the externally prestressed UHPC box girder. Finite element (FE) model analysis results agree well with the test results. The influencing parameter, concrete grades, was studied numerically to compare the flexural behavior of UHPC girder with PC girder. The cracking moment and ultimate load calculation method is proposed, which can meet precision for engineering practice and can be a reference method for design calculation of a prestressed UHPC box girder.

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Section: Fe Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on flexural behavior of the externally prestressed UHPC box girder

Su¹,

Du²,

Chen³

et al. 2018

JACF

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“…Einige Arbeiten [6,7,3] bestätigen bereits den hohen Widerstand gegen das Eindringen von Chloriden, Gasen, Flüssigkeiten sowie gegen chemische Angriffe und Abwitterung infolge Frost-und Frost-Tausalz-Beanspruchung. Der Karbonatisierungsfortschritt von UHFB ist gegenüber hochfestem Beton nochmals deutlich verlangsamt.…”

Section: Einleitung 1uhfb -Materialeigenschaften Und Tragverhaltenunclassified

Wildbrücke Völkermarkt – vorgespanntes Bogentragwerk aus UHFB‐Segmentfertigteilen

Reichel¹,

Sparowitz

Freytag

2011

Beton und Stahlbetonbau

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“…In general, the compressive and tensile strengths of UFC are more than 150 MPa and 5 MPa, respectively, defined by the recommendations for design and construction of UFC (Draft) (JSCE 2006). As aforementioned, UFC has been applied in various civil engineering structures because of its outstanding properties; i.e., less element thickness, lower structural self-weight, longer span length, and high durability (Behloul and Lee 2002;Musha et al 2013b;Tanaka et al 2010;Tirimanna and Falbr 2013).…”

Section: Introductionmentioning

confidence: 99%

Shear Strengthening Performance of Post-tensioned UFC Panel on Reinforced Concrete Beams

Limpaninlachat

Nakamura

Kono³

et al. 2017

ACT

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The ultra high strength fiber reinforced concrete (UFC) is an advanced cementitious material which grants the high performances in strength, durability, and ductility. Because of these high performances, in this study, it was applied into the new idea for shear strengthening to RC beams, namely the post-tensioned UFC panel. It is the prefabricated UFC panel prestressed by some prestressing force. Three parameters (i.e., the number of post-tensioned UFC panel, the amount of prestressing rods, and the prestressing level in the UFC panels) were studied from eight strengthened beams for investigating the shear strengthening performance. All specimens were subjected to four-point bending. The results of the strengthened beams and the non-strengthened beam revealed that the strengthening by post-tensioned UFC panel increases the shear capacity, stiffness, and ductility of the beams. Moreover, the prestressing level also influenced the delay of the initial cracking load and the yielding of stirrups. Finally, the shear capacity carried by the post-tensioned UFC panel was proposed by using the force equilibrium along the assumption of imaginary diagonal crack.

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The Innovation and Application of UHPFRC Bridges in Japan

Cited by 26 publications

References 0 publications

Research on flexural behavior of the externally prestressed UHPC box girder

Research on flexural behavior of the externally prestressed UHPC box girder

Wildbrücke Völkermarkt – vorgespanntes Bogentragwerk aus UHFB‐Segmentfertigteilen

Shear Strengthening Performance of Post-tensioned UFC Panel on Reinforced Concrete Beams

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