Search Results - "Akiyama, Mitsuyoshi"

Toward life-cycle reliability-, risk- and resilience-based design and assessment of bridges and bridge networks under independent and interacting hazards: emphasis on earthquake, tsunami and corrosion by Akiyama, Mitsuyoshi, Frangopol, Dan M., Ishibashi, Hiroki

“…After recent large earthquakes, field investigations confirmed that several bridges were severely damaged and collapsed not only due to the earthquake, as an…”
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Assessment of the structural performance of corrosion-affected RC members based on experimental study and probabilistic modeling by Lim, Sopokhem, Akiyama, Mitsuyoshi, Frangopol, Dan M.

“…•The steel weight loss along rebars is estimated by X-ray and digital image processing techniques.•The effects of spatial variability of steel corrosion on the…”
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Effects of concrete flow on the distribution and orientation of fibers and flexural behavior of steel fiber-reinforced self-compacting concrete beams by Raju, Ramiz Ahmed, Lim, Sopokhem, Akiyama, Mitsuyoshi, Kageyama, Takumi

“…•Better fiber distribution and orientation are achieved by the high flow of SCFRC.•Viscosity of SCFRC has a significant influence on the fiber…”
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Reliability estimation of corroded RC structures based on spatial variability using experimental evidence, probabilistic analysis and finite element method by Zhang, Mingyang, Song, Huijuan, Lim, Sopokhem, Akiyama, Mitsuyoshi, Frangopol, Dan M.

“…•Effects of current density, rebar size, and fly ash on steel corrosion are studied.•Effects of spatial steel corrosion on structural behavior of RC beams are…”
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Probabilistic estimation of flexural loading capacity of existing RC structures based on observational corrosion-induced crack width distribution using machine learning by Zhang, Mingyang, Akiyama, Mitsuyoshi, Shintani, Mina, Xin, Jiyu, Frangopol, Dan M.

“…•A framework for estimating PDF of structural capacity of corroded RC beams is proposed.•The machine learning-based models are trained by using an artificial…”
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Effect of the correlation of steel corrosion in the transverse direction between tensile rebars on the structural performance of RC beams by Zhang, Mingyang, Nishiya, Naoki, Akiyama, Mitsuyoshi, Lim, Sopokhem, Masuda, Keisuke

“…•Effect of localized corrosion on the structural behavior of RC beams is studied.•Effect of correlation of steel corrosion between tensile rebars is…”
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Life-cycle reliability of RC bridge piers under seismic and airborne chloride hazards by Akiyama, Mitsuyoshi, Frangopol, Dan M., Matsuzaki, Hiroshi

“…Over the last two decades, the probabilistic assessment of reinforced concrete (RC) structures under seismic hazard has been developed rapidly. However, little…”
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Stochastic renewal process model of time-variant tsunami hazard assessment under nonstationary effects of sea-level rise due to climate change by Alhamid, Abdul Kadir, Akiyama, Mitsuyoshi, Aoki, Koki, Koshimura, Shunichi, Frangopol, Dan M.

“…•A framework for time-variant tsunami hazard assessment considering nonstationary sea-level rise effects is established.•Non-Poisson renewal process models are…”
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Life‐cycle risk assessment of building portfolios subjected to tsunamis under non‐stationary sea‐level rise based on a compound renewal process by Alhamid, Abdul Kadir, Akiyama, Mitsuyoshi, Aoki, Koki, Koshimura, Shunichi, Frangopol, Dan M.

“…The immense impacts of tsunamis can inflict substantial damage on coastal infrastructure systems during their lifetime and lead to considerable economic loss…”
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Effect of the interaction of corrosion pits among multiple tensile rebars on the reliability of RC structures: Experimental and numerical investigation by Srivaranun, Supasit, Akiyama, Mitsuyoshi, Bocchini, Paolo, Christou, Vasileios, Frangopol, Dan M., Fukushima, Hiroyuki, Masuda, Keisuke

“…•The localized steel corrosion of multiple rebars is measured using X-ray technique.•The transverse correlation function among corrosion distributions is…”
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Framework for probabilistic tsunami hazard assessment considering the effects of sea-level rise due to climate change by Alhamid, Abdul Kadir, Akiyama, Mitsuyoshi, Ishibashi, Hiroki, Aoki, Koki, Koshimura, Shunichi, Frangopol, Dan M.

“…•A framework for incorporating uncertainties associated with sea-level rise in probabilistic tsunami hazard assessments (PTHAs) is established.•A practical…”
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A novel casting procedure for SFRC piles without shear reinforcement using the centrifugal forming technique to manipulate the fiber orientation and distribution by Raju, Ramiz Ahmed, Akiyama, Mitsuyoshi, Lim, Sopokhem, Kakegawa, Tatsuya, Hosono, Yuka

“…•The centrifugal forming technique can improve the fiber orientation in SFRC piles.•The shear strength of SFRC piles increases significantly with the fiber…”
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Probabilistic structural identification and condition assessment of prestressed concrete bridges based on Bayesian inference using deflection measurements by Jia, Siyi, Akiyama, Mitsuyoshi, Han, Bing, Frangopol, Dan M.

“…This paper presents a model-based probabilistic structural identification that uses the deflection of prestressed concrete bridges (PSCBs) as observational…”
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Random field-based reliability updating framework for existing RC structures incorporating the effect of spatial steel corrosion distribution by Srivaranun, Supasit, Akiyama, Mitsuyoshi, Masuda, Keisuke, Frangopol, Dan M., Maruyama, Osamu

“…In recent years, interest in the effect of the spatial variability associated with steel corrosion on the safety and reliability of reinforced concrete (RC)…”
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Structural identification via the inference of the stochastic volatility model conditioned on the time-dependent bridge deflection by Jia, Siyi, Akiyama, Mitsuyoshi, Han, Bing, Xie, Huibing, Frangopol, Dan M.

“…•Time-dependent deflection was used for model-based structural identification.•The degradation path of structural rigidity was modeled by the Wiener process.•A…”
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Probabilistic Connectivity Assessment of Road Networks Subjected to Ground Motion and Tsunamis Considering the Spatial Correlations among Hazard Intensities by Aoki, Koki, Akiyama, Mitsuyoshi, Alhamid, Abdul Kadir, Frangopol, Dan M., Koshimura, Shunichi

“…Abstract Before the anticipated Nankai Trough earthquake, the effects of multiple cascading hazards on bridge performance and the associated functionalities of…”
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Experimental investigation of the spatial variability of the steel weight loss and corrosion cracking of reinforced concrete members: novel X-ray and digital image processing techniques by Lim, Sopokhem, Akiyama, Mitsuyoshi, Frangopol, Dan M., Jiang, Haitao

“…The material properties of concrete structures and their structural dimensions are known to be random due to the spatial variability associated with…”
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Reliability-based life-cycle cost design of asphalt pavement using artificial neural networks by Xin, Jiyu, Akiyama, Mitsuyoshi, Frangopol, Dan M., Zhang, Mingyang, Pei, Jianzhong, Zhang, Jiupeng

“…It is widely recognized that reliability-based optimization methodologies are rational and promising tools to perform the life-cycle management (LCM) of civil…”
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Risk estimation of the disaster waste generated by both ground motion and tsunami due to the anticipated Nankai Trough earthquake by Ishibashi, Hiroki, Akiyama, Mitsuyoshi, Kojima, Takayuki, Aoki, Koki, Koshimura, Shunichi, Frangopol, Dan M.

“…The amount of disaster waste is one of the most important performance indicators in quantifying the resilience of a community. In fact, disaster waste can have…”
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Long-term seismic performance of RC structures in an aggressive environment: emphasis on bridge piers by Akiyama, Mitsuyoshi, Frangopol, Dan M.

“…Even though accurate structural models have been developed for the performance of corroded structures subjected to monotonic flexure and/or shear, studies on…”
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