Dynamic response analysis of bridge precast segment piers under vehicle collision

Wu, Min; Jin, Liu; Du, Xiuli

doi:10.1016/j.engfailanal.2021.105363

Cited by 18 publications

(6 citation statements)

References 40 publications

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“…the slip of reinforced concrete under impact load is not considered. This method has been proved to be reasonable and widely adopted (Wu, Jin & Du, 2020, 2021; Xue et al, 2021; Akshaya et al, 2022; Li et al, 2020). The mesh size of reinforcement and concrete is 5 mm, and this is also consistent with the previous research.…”

Section: Modeling Methods and Verificationmentioning

confidence: 99%

“…The specific modeling process of NC beam under impact loads can be found in Wu et al (2021aWu et al ( , 2021b. The authors of this work have reported the material model, contact algorithm, strain rate effect and loading method in detail.…”

Section: Model Verification Of Nc Beammentioning

confidence: 99%

“…In this work, *MAT-159 (CSCM) is used to represent the constitutive model of UHPC, and it can effectively predict the dynamic response of reinforced concrete under lateral impact loads (Jia et al, 2021;Fan et al, 2019;Pham and Hao, 2018;Wu et al, 2021aWu et al, , 2021b. The CSCM model includes two parameter input methods which are automatic generation and full parameter input.…”

Section: Model Verification Of Uhpc Beammentioning

confidence: 99%

“…In general, the deformation process can be divided into two stages: forced vibration and free vibration, thus forming different internal force response processes. Reinforced concrete beams first form local compressive stress wave, and then gradually transfer to the end of the beam under impact load (Pham and Hao, 2018;Wu et al, 2021aWu et al, , 2021b. It is worth noting that before the free vibration stage of the beam occurs, the stress wave is transmitted to the support of the beam, and its internal force change will be affected by the impact force, inertia force and support force at the same time.…”

Section: Internal Forcementioning

confidence: 99%

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Performance analysis of the ultra high performance concrete composite beam subjected to impact loads

Pei

Zeng

et al. 2023

Advances in Structural Engineering

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Ultra High Performance Concrete (UHPC) has gradually become the most promising high-performance material, and has achieved good results in the field of impact and explosion protection engineering. In general, normal reinforced concrete (NC) beams subjected to impact load are prone to local punching shear failure. Although pure UHPC beams can improve their impact performance, their further application is limited by the high cost. In order to achieve the balance between impact resistance and economy, this study puts forward the design scheme of local replacement and wrapping with UHPC to improve the impact resistance of reinforced concrete beams. In this work, the different research conditions including NC beam, UHPC beam and NC-UHPC composite beam are designed, and the impact resistance of specimens is compared and analyzed. The results show that UHPC local replacement scheme can effectively avoid local punching shear failure of beams. As for the UHPC wrapping scheme, the failure mode of the beam changes from punching shear failure to bending failure. Compared with NC beams, two schemes can effectively reduce the peak displacement and residual displacement in the mid-span. The peak displacement and residual displacement in the mid-span of the UHPC local replacement beam are smaller than that of UHPC wrapping schemes, and the mid-span bearing capacity is better. In this work, it is recommended to take a local replacement length greater than 2 times the beam height to avoid local punching shear failure.

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Section: Modeling Methods and Verificationmentioning

confidence: 99%

Section: Model Verification Of Nc Beammentioning

confidence: 99%

Section: Model Verification Of Uhpc Beammentioning

confidence: 99%

Section: Internal Forcementioning

confidence: 99%

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Performance analysis of the ultra high performance concrete composite beam subjected to impact loads

Pei

Zeng

et al. 2023

Advances in Structural Engineering

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“…The performance of the PSCs subjected to truck impacts was investigated by Do et al (2019b) (Fig. 13b) and Wu et al (2021). It was found that the damage of the monolithic column was more severe than that of the PSCs.…”

Section: Behaviours Under Other Extreme Loadingsmentioning

confidence: 99%

State-of-the-art review of the seismic performance of precast segmental columns

Hao

2022

ABEN

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Prefabricated construction is attracting increasing interest in recent years, since this construction method has various advantages as compared to the cast-in-situ construction method, such as less construction time, higher quality control and reduced environmental impact. As a typical type of prefabricated structures, precast segmental column (PSC) has been used as the substructure to accelerate the construction speed of bridges. This paper reviews the performances of the PSCs under seismic loadings. In particular, the seismic performances of the PSC itself under cyclic loading and real earthquake ground motions, the seismic behaviours of PSC-supported bridge structures, and the responses of precast rocking column (PRC)-supported bridges, are comprehensively reviewed and their pros and cons are discussed. For the completeness of the paper, the performances of the PSCs under multiple dynamic hazards, namely impact and blast loadings here are also briefly summarized at the end of this paper.

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Dynamic response of precast segmental bridge columns under heavy truck impact

Zhang

Fan

et al. 2023

Front. Struct. Civ. Eng.

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Dynamic response analysis of bridge precast segment piers under vehicle collision

Cited by 18 publications

References 40 publications

Performance analysis of the ultra high performance concrete composite beam subjected to impact loads

Performance analysis of the ultra high performance concrete composite beam subjected to impact loads

State-of-the-art review of the seismic performance of precast segmental columns

Dynamic response of precast segmental bridge columns under heavy truck impact

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