Seismic Performance of a Full-Size Polypropylene Fiber-Reinforced Cement Composite Bridge Column Based on E-Defense Shake Table Experiments

Kawashima, Koichiro; Zafra, Richelle G.; Sasaki, Tomohiro; Kajiwara, Koichi; Nakayama, Manabu; Unjoh, Shigeki; Sakai, Jun–ichi; Kosa, Kenji; Takahashi, Yoshikazu; Yabe, Masaaki

doi:10.1080/13632469.2011.651558

Cited by 25 publications

(12 citation statements)

References 16 publications

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“…Following the revision of the seismic specification, a retrofit program was also initiated to increase the shear and flexural strengths of RC piers . Various research projects were simultaneously conducted to improve the ductility capacity of RC piers using ultrahigh‐strength confined concrete, ductile interlocking spiral ties, encased steel in RC piers, and fiber‐reinforced plastic hinge zones . After the 2011 Great East Japan earthquake, the seismic design of new bridges revealed an effective improvement of the design methodology; brittle failures were not observed, and enhanced ductile piers performed well according to the capacity design concept …”

Section: Introductionmentioning

confidence: 99%

“…2 Various research projects were simultaneously conducted to improve the ductility capacity of RC piers using ultrahigh-strength confined concrete, [3][4][5] ductile interlocking spiral ties, 6,7 encased steel in RC piers, 8 and fiber-reinforced plastic hinge zones. 9 After the 2011 Great East Japan earthquake, the seismic design of new bridges revealed an effective improvement of the design methodology; brittle failures were not observed, and enhanced ductile piers performed well according to the capacity design concept. 10,11 Currently, much of the technology has already been developed to satisfy the capacity design procedure, in which a hierarchy of the resistances of structural members is established to dissipate seismic force at suitable plastic deformations without an excessive loss of strength.…”

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confidence: 99%

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Shaking table tests of a reinforced concrete bridge pier with a low‐cost sliding pendulum system

Brito

Ishibashi

Akiyama

2018

Earthq Engng Struct Dyn

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Summary After the occurrence of various destructive earthquakes in Japan, extensive efforts have been made to improve the seismic performance of bridges. Although improvements to the ductile capacities of reinforced concrete (RC) bridge piers have been developed over the past few decades, seismic resilience has not been adequately ensured. Simple ductile structures are not robust and exhibit a certain level of damage under extremely strong earthquakes, leading to large residual displacements and higher repair costs, which incur in societies with less‐effective disaster response and recovery measures. To ensure the seismic resilience of bridges, it is necessary to continue developing the seismic design methodology of RC bridges by exploring new concepts while avoiding the use of expensive materials. Therefore, to maximize the postevent operability, a novel RC bridge pier with a low‐cost sliding pendulum system is proposed. The seismic force is reduced as the upper component moves along a concave sliding surface atop the lower component of the RC bridge pier. No replaceable seismic devices are included to lengthen the natural period; only conventional concrete and steel are used to achieve low‐cost design solutions. The seismic performance was evaluated through unidirectional shaking table tests. The experimental results demonstrated a reduction in the shear force transmitted to the substructure, and the residual displacement decreased by establishing an adequate radius of the sliding surface. Finally, a nonlinear dynamic analysis was performed to estimate the seismic response of the proposed RC bridge pier.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Shaking table tests of a reinforced concrete bridge pier with a low‐cost sliding pendulum system

Brito

Ishibashi

Akiyama

2018

Earthq Engng Struct Dyn

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“…The effectiveness of PFRC was also investigated based on shaking table experiments on a full-size bridge column (C1-6 column) subjected to near-field ground motions 9) . The use of PFRC substantially reduced the apparent damage which can allow the bridge to be serviceable.…”

Section: Introductionmentioning

confidence: 99%

“…Fig. 1 shows the configuration of C1-6 cantilever type column designed to have flexure dominated failure 9) . It is a 7.5 m tall, 1.8 m by 1.8 m square column designed in accordance with the 2002 JRA code 11) assuming moderate soil condition under the Type II design ground motion (near-field ground motion) as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Effect of Tie Bar Volume on the Seismic Performance of Polypropylene Fiber Reinforced Columns based on Hybrid Loading Experiments

Zhang

Matsuzaki

Kawashima

2013

J. JSCE

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It has been shown based on previous research that damage of RC bridge columns can be mitigated and ductility capacity can be enhanced by implementing polypropylene fiber-reinforced cement composites (PFRC) at the plastic hinge. The bridging action of polypropylene fibers which can mitigate crack propagation and widening of cracks has similar action with the lateral confinement by tie bars. Thus, it is likely that use of PFRC can reduce amount of tie bars required for ductility capacity enhancement. This paper shows a feasibility study for reducing an amount of tie bars by implementing PFRC at the plastic hinge. Based on a hybrid loading experiment and a nonlinear dynamic response analysis, it is shown that it is feasible to reduce an amount of tie bars by half by using PFRC though failure of the column slightly increases.

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“…The column utilized a base rocking design to avoid flexural crack localization caused by plastic hinge formation [13,24,25]. Flexural crack localization is caused by the higher mechanical bond that exists between HPFRCC and the reinforcing steel bar due to the HPFRCC's effectiveness in suppressing splitting cracks [26].…”

Section: Design Of Columnmentioning

confidence: 99%

Seismic response of a rocking bridge column using a precast hybrid fiber-reinforced concrete (HyFRC) tube

Nguyen

Trono

Panagiotou

et al. 2017

Composite Structures

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Seismic Performance of a Full-Size Polypropylene Fiber-Reinforced Cement Composite Bridge Column Based on E-Defense Shake Table Experiments

Cited by 25 publications

References 16 publications

Shaking table tests of a reinforced concrete bridge pier with a low‐cost sliding pendulum system

Shaking table tests of a reinforced concrete bridge pier with a low‐cost sliding pendulum system

Effect of Tie Bar Volume on the Seismic Performance of Polypropylene Fiber Reinforced Columns based on Hybrid Loading Experiments

Seismic response of a rocking bridge column using a precast hybrid fiber-reinforced concrete (HyFRC) tube

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