Dynamic Ship-bridge Collision Risk Decision Method Based on Time-Dependent AASHTO Model

Peng, Keke

doi:10.1007/s40030-020-00506-9

Cited by 10 publications

(10 citation statements)

References 11 publications

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“…A spatial correlation analysis method for near-collision clusters with local traffic characteristics was proposed [20]. Introducing the time factor, Peng (2021) provided an improved risk decision method for vesselbridge collision based on AASHTO model, which can be applied to the risk assessment of vessel-bridge collisions during bridge design and service stages [21]. Based on the response surface theory and finite element (FE) model results, Fan (2021) established a typical four-span continuous reinforced concrete (RC) bridge surrogate model.…”

Section: Review Of Vessel-bridge Collision Reliability Analysismentioning

confidence: 99%

Vessel‐Bridge Collision Reliability Assessment Based on Structural Dynamic Analysis

Ren

Wang

2021

Advances in Civil Engineering

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Reliability analysis of vessel-bridge collision plays an important role in the construction of inland bridges. In this paper, a new method is proposed based on structural dynamic analysis. The random characteristics of three factors—impact angle, deadweight tonnage of vessels, and impact velocity—are considered. This method combines the method of moments with nonlinear dynamic finite element analysis, which can enhance the efficiency of calculating failure probability.

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Section: Review Of Vessel-bridge Collision Reliability Analysismentioning

confidence: 99%

Vessel‐Bridge Collision Reliability Assessment Based on Structural Dynamic Analysis

Ren

Wang

2021

Advances in Civil Engineering

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“…Typical upward and downward navigation velocities of various representative vessels are obtained by investigating vessel flow [15]. e AASHTO [16] specification adopts the broken line form shown in Figure 2 for the distribution of vessel collision velocity.…”

Section: Probability Model Of Collision Velocitymentioning

confidence: 99%

Research on Bridge Structure Reliability Evaluation due to Vessels Collison Based on a Statistical Moment Method

Liu

Zhu

2021

Advances in Materials Science and Engineering

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Damage to bridge structures caused by vessel collision is a risk for bridges crossing water traffic routes. Therefore, safety around vessel collision of existing and planned bridges is one of the key technical problems that must be solved by engineering technicians and bridge managers. In the evaluation of the reliability of the bridge structure, the two aspects of vessel-bridge collision force and structural resistance need to be considered. As there are many influencing parameters, the performance function is difficult to express by explicit function. This paper combines the moment method theory of structural reliability with finite element analysis and proposes a statistical moment method based on finite element analysis for the calculation of vessel-bridge collision reliability, which solves the structural reliability problem with a nonlinear implicit performance function. According to the probability model based on current velocity, vessel velocity, and vessel collision tonnage, the estimate points in the standard normal space are converted into estimate points in the original state space through the Rosenblatt reverse transform. According to the estimate points in the original state space and the simplified dynamic load model of vessel-bridge collision, the sample time-history curve of random vessel-bridge collision force is generated, the dynamic response of the bridge structure and the structural resistance of the bridge are calculated by establishing a finite element model, and the failure probability and reliability index of the bridge structure is calculated according to the fourth-moment method. The statistical moment based on the finite element analysis is based on the finite element analysis and the moment method theory of structural reliability. The statistical moment of the limited performance function is calculated through a quite small amount of confirmatory finite element analysis, and the structural reliability index and failure probability are obtained. The method can be widely used in existing finite element analysis programs, greatly reducing the number of finite element analyses needed and improving the efficiency of structural reliability analysis.

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“…e ship collision accident in Guangdong Jiujiang Bridge caused 200 m collapse and 8 people died. In the Ningbo Jintang Bridge, both bridge and ship were severely damaged by ship collision and 4 people were lost in this accident [6]. Most of the above situations were caused by ships hitting bridge piers.…”

Section: Introductionmentioning

confidence: 99%

Safety Assessment of Ship Collision with Piers under the Protection of Anti‐Collision Floating Box Based on BIM Technology

Chen

Cheng

Zhao

et al. 2022

Advances in Civil Engineering

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In order to research the force state of the piers subjected to a ship collision under the protection of floating anti-collision facilities, this study uses nonlinear spring connections to simulate the impact of ship damping and incidental water quality in the collision area. BIM technology is used to realize a safety evaluation method for the anti-collision floating box protection when the ship is colliding with piers. Established a BIM-based parametric preprocessing model for ships, piers, and anti-collision facilities, and opened the interface with ABAQUS longitudinally. After realizing the parameter adjustment of the BIM model, the visual parameter adjustment can be realized without destroying the boundary conditions, load conditions, and meshing. Taking a rigid frame bridge as an example, the most disadvantage position of the bridge pier under ship collision is determined by the parameterization method. At the same time, multi-condition analysis was carried out on the ship impacting the pier anti-collision floating box at different angles, different tonnages, and different speeds. Finally, the analysis results are traced back to the BIM model, achieving the unified integration of BIM model information and finite element analysis results and the purpose of visual analysis of any working conditions. The results show that the use of BIM parameterization technology to achieve linkage with the finite element preprocessing model can improve the efficiency of multi-condition sensitivity analysis and achieve the purpose of visual dynamic adjustment. The safety assessment analysis of the pier under the protection of the anti-collision pontoon on the pier under various working conditions shows that the anti-collision pontoon effectively reduces the hazard of the ship colliding with the pier, and the impact force gradually increases with the change from the oblique collision to the frontal collision. The peak impact force increases with the weight of the ship and shows a nonlinear relationship, such that the peak value of impact force increases with the speed increase, and the speed and the peak values of impact force show basically a linear relationship.

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Dynamic Ship-bridge Collision Risk Decision Method Based on Time-Dependent AASHTO Model

Cited by 10 publications

References 11 publications

Vessel‐Bridge Collision Reliability Assessment Based on Structural Dynamic Analysis

Vessel‐Bridge Collision Reliability Assessment Based on Structural Dynamic Analysis

Research on Bridge Structure Reliability Evaluation due to Vessels Collison Based on a Statistical Moment Method

Safety Assessment of Ship Collision with Piers under the Protection of Anti‐Collision Floating Box Based on BIM Technology

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