Evaluation of Fatigue Resistance and Re-Injection of Resin for Uplifted Reinforced Concre Te Deck Slabs Reinforced by Steel Plates Bonding

Sano, Masashi; Yamashita, Kosei; Matsui, Shigeyuki; Horikawa, Tsuyoshi; Hisari, Yoshio; Niina, Tsutomu

doi:10.2208/jscejseee.67.27

Cited by 3 publications

(1 citation statement)

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“…Therefore, researchers have focused on the separation of the steel plates from the slab that is caused by cyclic travel loading [5][6][7] and the associated decrease of the load-resistant performance due to the separation [8]. However, the damage mechanism of slab concrete reinforced with steel plate has not yet been clarified.…”

Section: Introductionmentioning

confidence: 99%

Damage mechanism of existing RC slabs with reinforcing steel plate

Namba

Fujiyama

Niina³

2019

MATEC Web Conf.

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The purpose of this study was to clarify the damage mechanisms of existing reinforced concrete (RC) slabs with reinforcing steel plates through the use of a three-dimensional nonlinear finite element analysis. An actual wheel load running test was simulated. Two panels of RC slab were cut from existing bridges and were used as the test specimens. Simulation models were built for each specimen with different modeling concepts for the rebar; RC elements, and solid elements. After the wheel load running simulations, the strains were examined through use of the strain contours at various cross sections. In the model using solid element for the rebars, the mechanisms for the generation and development of the horizontal cracks were analyzed in detail. Furthermore, the strain components of the referential elements were carefully analyzed for different loading cycles and positions. Although the decisive cause of the horizontal crack has not been clarified yet, the crack development processes were mostly demonstrated through this study.

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Section: Introductionmentioning

confidence: 99%