Shear Performance Evaluation of Reinforced Concrete Piers Subjected to Vehicle Collision

Chen, Lin; Wu, Hao; Liu, Tao

doi:10.1061/(asce)st.1943-541x.0002571

Cited by 40 publications

(23 citation statements)

References 17 publications

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“…Obviously, the equivalent static design forces specified in current codes have not fully considered the diversity of vehicle impact (including vehicle type, mass, and impact velocity, etc.). A number of studies have pointed out that designing with current specifications is not sufficient to ensure the safety of bridge piers (Abdelkarim and Elgawady, 2017; Chen et al, 2020; El-Tawil et al, 2005). Similar conclusions were drawn regarding the equivalent static design force specified in Eurocode 1-Part 1-7 (BSI, 2006a) for building columns subjected to vehicular impact (Al-Thairy and Wang, 2013).…”

Section: Design Methodology For Rc Pier Under Vehicle Collisionmentioning

confidence: 99%

“…or below are vulnerable to the impact by large trucks (tractor-trailer or single-unit trucks), no matter whether the trucks are loaded or not; and the shear failure was found to be the primary failure mode for these columns (AASHTO, 2012). Further, FE simulations have demonstrated that the shear failure is still the primary failure mode for RC columns with a diameter larger than 750 mm (Abdelkarim and Elgawady, 2017; Chen et al, 2020).…”

Section: Structural Demand Of Rc Pier Under Vehicle Collisionmentioning

confidence: 99%

“…Considering that the shear failure is the primary failure mode of RC columns under vehicle collision (Buth et al, 2010; Chen et al, 2020), it seems more important to investigate the dynamic shear capacity of the RC columns. Sharma et al (2012) defined three performance levels (corresponding to four damage levels) for RC columns under vehicular impact, and determined the shear capacity of the columns for each performance level to be the maximum value of the sectional shear force when the corresponding damage features were reached.…”

Section: Damage Assessment Of Rc Pier Under Vehicle Collisionmentioning

confidence: 99%

“…Do et al (2019a, 2019b), respectively, proposed semi-empirical formulas for calculating dynamic shear capacity and sectional force demand (shear and bending moment) of RC columns under vehicle collision based on FE simulations, and finally established a force-based damage assessment method. On the other hand, some researchers employed the ratio of the peak of impact force (or equivalent static force) to the static shear capacity of RC columns to evaluate their damage states (Agrawal et al, 2013; Chen et al, 2020; Gomez and Alipour, 2014; Zhou and Li, 2018). Among them, Chen et al (2020) considered the influence of the axial force increment on the shear capacity of the RC columns under vehicle collision.…”

Section: Damage Assessment Of Rc Pier Under Vehicle Collisionmentioning

confidence: 99%

“…On the other hand, some researchers employed the ratio of the peak of impact force (or equivalent static force) to the static shear capacity of RC columns to evaluate their damage states (Agrawal et al, 2013; Chen et al, 2020; Gomez and Alipour, 2014; Zhou and Li, 2018). Among them, Chen et al (2020) considered the influence of the axial force increment on the shear capacity of the RC columns under vehicle collision. Saini and Shafei (2018) also used this type of ratio to evaluate the vulnerability of concrete-filled steel tubular columns that were simultaneously subjected to corrosion and vehicular impact.…”

Section: Damage Assessment Of Rc Pier Under Vehicle Collisionmentioning

confidence: 99%

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Vehicle collision with bridge piers: A state-of-the-art review

Chen

Liu

2020

Advances in Structural Engineering

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Although the probability of vehicle collision with bridge piers is relatively low, it may cause the pier to fracture and even the entire bridge to collapse, resulting in casualties and huge economic losses. Therefore, bridge piers should be properly designed against vehicle collision. This paper aims to make a state-of-the-art review of the research on vehicle collision with bridge piers, to summarize the achievements and current limitations in this field, and to give some suggestions for future research. It is organized within a framework of performance-based design, which is divided into four types of problems, that is, hazard analysis, structural analysis, damage analysis, and loss analysis. Studies show that reinforced concrete (RC) piers under vehicle impact generally exhibit three damage modes, that is, local damage, shear damage, and flexural damage. When a large truck hits a pier, the engine and container (cargo) may contribute to a two-stage impact characteristic, which has a great influence on the response and damage of the pier. The vehicular impact (force) models and nonlinear response models of RC members under impact loads have been developed respectively, which can be combined to quickly analyze the nonlinear response of RC piers under vehicle impact. Deformation-based methods should be developed to quantify the damage level of RC piers under different damage modes. Current codes still mainly adopt the equivalent static force design method, but some provisions regarding probabilistic (reliability) analysis have appeared. More attention should be paid to the statistical analysis of roadside crashes and vehicle-related parameters in order to obtain a more realistic probabilistic analysis model, and further establish a performance-based design method for RC piers subjected to vehicle collision.

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