Reinforced concrete bridge structures under barge impacts: FE modeling, dynamic behaviors, and UHPFRC-based strengthening

Fan, Wei; Shen, Dongjie; Huang, Xu; Sun, Yang

doi:10.1016/j.oceaneng.2020.108116

Cited by 44 publications

(6 citation statements)

References 40 publications

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“…The static tests of the overpass were conducted in accordance with the work program in three stages [19][20][21]. The values analysis of the deflection increments during the loading and unloading at the first, second and third stages of the static tests testified to the elastic behavior of the VTK-33u beams of a length of 33.0 m.…”

Section: Resultsmentioning

confidence: 99%

Ensuring Operational Reliability of Overpass On "Almaty-Kapshagai" Highway Section in Kazakhstan

Jalairov¹,

Kumar²,

Kassymkanova³

et al. 2022

Komunikácie

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The article presents results of the overpass condition survey, technical survey, static tests and assessment of the structure operational reliability, a doubledecker overpass on Almaty-Kapshagai highway section in Kazakhstan. Technical survey determined the dimensions of the overpass, the camber of reinforced concrete superstructures main beams and checked the values of the overpass roadway actual transverse and longitudinal slopes. The calculation and analytical assessment of the overpass load-bearing structures, for the strength of the bending moment, are performed. Static tests of the overpass split beam superstructure of a length of 33.0m were conducted. Trucks loaded with ballast were accepted as a test load.

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Section: Resultsmentioning

confidence: 99%

Ensuring Operational Reliability of Overpass On "Almaty-Kapshagai" Highway Section in Kazakhstan

Jalairov¹,

Kumar²,

Kassymkanova³

et al. 2022

Komunikácie

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“…As the computer becomes more efficient and gains more progress in accuracy, HPFEM technology was introduced for the calculation of the impact force by barge-bridge collision. HPFEM is a reliable method to calculate the impact force between barge and bridge [3][4][5][6][7][8][9] but costs plentiful computer resources and time and requires strong analysis capability. Under this background, a simplified dynamic load method was conceived [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Method for Predicting Barge Impact Force Based on Nonlinear Spring Stiffness

Shao

Zhan

Song

et al. 2022

Shock and Vibration

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Accurate prediction of barge impact force contributes greatly to the research of the soundness of the bridge under barge impact. Toward this end, the calculation method of barge impact force caused by ship-bridge collision is investigated in this study. Firstly, a comparative analysis for different energy conversion relationships is conducted via the high-precision finite element method (HPFEM) and the coupled vessel impact analysis (CVIA). A construction method of nonlinear spring stiffness (NSS) is proposed therefrom. Secondly, a high-precision finite element model is developed to simulate the barge-bridge collision under different barge masses and impact velocities. NSS under each condition is obtained, and the influences of barge mass and impact velocity on NSS are further discussed. An NSS model considering the effects of impact mass and impact velocity is proposed. Lastly, based on the NSS model, a prediction method of barge impact force is introduced. The results show that the impact mass has little influence on the peak value of NSS; however, the impact mass and impact velocity have a great influence on the tail of the NSS curve. According to the characteristics of NSS, four key control points can be extracted and NSS is simplified into a polyline model. The NSS model of the barge is obtained by nonlinear response surface fitting. The impact force can be predicted by combining the simplified NSS model and the proposed method in this study. The proposed method in this paper does not consider the pier stiffness; hence, it can be combined with NSS to quickly estimate the impact force, which can provide a design basis for the impact force in ship-bridge collision design. The rigid wall and a continuous rigid frame bridge impacted by the barge are studied; the results show that the proposed method can reasonably estimate the impact force.

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“…During the past two decades, several FE numerical studies have been performed to investigate the impact load from barge impacts and the factors affecting it, such as speed, pier column shape and width, vessel weight, and bow stiffness (e.g., [ 3 , 9 – 20 ]) The main focus of these studies was to propose and validate a simplified model to predict the magnitude of the impact load. The most versatile studies were performed by a research group at the University of Florida, in which they used the experimental impact tests at St. George Island Causeway Bridge to calibrate and validate FE numerical models for the barge impact problem developed in LS-DYNA software ( 9 , 10 ).…”

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confidence: 99%

“…The ship bow was modeled using the elastic-plastic model (MAT_PLASTIC_KINEMATIC) in LS-DYNA, the ship body was modeled using the rigid material model (MAT_RIGID), the ship rigid wall was modeled using the rigid material model (MAT_RIGID), the concrete and the steel of the bridge structure were modeled using the linear elastic material model (MAT_ELASTIC), and the surrounding soil was modeled using spring elements. Fan et al ( 17 ) developed FE models to simulate the barge impact on a four-span continuous girder bridge. The bridge columns were simulated using eight-node solid elements with single-point interaction and the bridge girders and piles were simulated using beam elements.…”

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confidence: 99%

Numerical Simulation of a Barge Impact on Bridges with Different Configurations of Pile Group Foundations

Abu-Farsakh

Souri²,

Voyiadjis

2023

Transportation Research Record: Journal of the Transportation R

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Three-dimensional finite element dynamic analyses were conducted to evaluate the effect of barge impact of different speeds on the lateral performance of three pile group (PG) configurations (vertical, battered, mixed) in terms of peak lateral displacement, peak shear force, lateral stiffness of PGs, and contribution of piles and pier columns to the total resisting force. The concrete material was modeled using the Concrete Damaged Plasticity model. The clay behavior was described using the Modified Cam Clay model; while the sand was modeled using the Drucker Prager model. The results showed that the vertical PG had the lowest lateral stiffness; while the battered and mixed PGs had closely larger stiffness, which allowed the development of larger impact force and pile cap displacement in vertical PG as compared to other PGs. The results of shear force showed that the foundation contributed up to 82% of the total lateral force in battered and mixed PGs. The results also showed that in vertical PG, the first row had slightly higher percentage of lateral force compared to other rows; while in battered PG, the load percentage was evenly distributed between rows. A contrast performance was observed for mixed PG. The results of bending moment (BM) showed that the piles in vertical PG had notably higher BM than the piles in other PGs due to larger pile cap displacement. In all PGs, the piles in the edge column had higher BM ratio, with the leading row (L) had the highest BM ratio (69–72%) in all PGs.

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Reinforced concrete bridge structures under barge impacts: FE modeling, dynamic behaviors, and UHPFRC-based strengthening

Cited by 44 publications

References 40 publications

Ensuring Operational Reliability of Overpass On "Almaty-Kapshagai" Highway Section in Kazakhstan

Ensuring Operational Reliability of Overpass On "Almaty-Kapshagai" Highway Section in Kazakhstan

Method for Predicting Barge Impact Force Based on Nonlinear Spring Stiffness

Numerical Simulation of a Barge Impact on Bridges with Different Configurations of Pile Group Foundations

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