Assessing the response and fragility of concrete bridges under multi-hazard effect of vessel impact and corrosion

Fan, Wei; Sun, Yang; Yang, Cancan; Sun, Wenjuan; He, Yang

doi:10.1016/j.engstruct.2020.111279

Cited by 43 publications

(17 citation statements)

References 47 publications

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“…The peculiarity of this structure was that during its construction, all fourteen VTK-33u beams of The data analysis given in Table 2 shows that the bending moments in beams No. 1,2,3,4,11,12,13 in superstructure No. 1, after laying the overhead slab and asphalt pavement, have an insignificant value and there is a deflection in beam No.…”

Section: Methodsmentioning

confidence: 99%

“…The following types of activities have been performed [2][3][4][5][6][7][8] during the highway overpass survey: • familiarization with the project documentation in terms of construction solution adopted in the project and as-built documents for construction; • control measurements of the bridge supporting foundations are taken in the form of load distribution structures, supported by drilled piers with a diameter of 1500 mm. The abutment foundations are also taken in the form of load distribution structures, supported by drilled piers of a diameter of 1500 mm.…”

Section: Introductionmentioning

confidence: 99%

“…kN is the truck load; l = 32.4 m -calculated beam span; E b = 352 . 10 5 kN/m 2 -beam concrete modulus of elasticity; I red = 0.1875 m4 -inertia moment of the cross section in the middle of the beam.Its behavior as a part of the superstructure should be taken into account when determining the deflection…”

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confidence: 99%

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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: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Jalairov¹,

Kumar²,

Kassymkanova³

et al. 2022

Komunikácie

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“…Fan (2020) developed a novel fragility assessment framework for reinforced concrete (RC) bridges under vessel collision with the corrosion-induced structural deterioration being considered and further studied finite element (FE) modeling approaches considering the reinforcement bondslip effects. e test results verify that bridges can be resilient to both episodic (vessel collision) and chronic (structural deterioration) hazards [18]. Lin (2021) proposed a framework for the performance assessment of reinforced concrete (RC) bridge piers under vehicle collision incorporating risk.…”

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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“…Fu et al [ 11 ] developed a life-cycle fragility assessment method to establish the time-dependent seismic fragility curves of an illustrative cable-stayed bridge at the component and system levels. Fan et al [ 12 ] established a fragility analysis framework for RC bridge structures subjected to the multi-hazard effect of vessel collisions and corrosion. Meanwhile, the modeling and analysis of the time-dependent seismic fragility due to the corrosion effects of RC bridges has received significant attention [ 13 , 14 , 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Time-Dependent Seismic Fragility of Typical Concrete Girder Bridges under Chloride-Induced Corrosion

et al. 2022

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Recent studies highlighted the importance of the combined effects of prestress loss and corrosion deterioration for concrete girder bridge structures when the effect of damage on the performance level is estimated. The multi-deterioration mechanisms connected with chloride erosion include the cross-sectional area loss of longitudinal bars and stirrups, the reduction in the ductility, the decrease in the strength of steels and the strength loss of concrete in RC columns. For the corroded RC columns and corroded elastomeric bridge bearings, analytical models of the material degradation phenomena were employed for performing the probabilistic seismic performance analysis, which could obtain the system seismic fragility of aging bridges by considering the failure functionality of multiple correlated components (e.g., columns, bearings). The combined effects of prestress loss and cracking were also considered when developing time-dependent system seismic fragility functions. Here, a typical multi-span reinforced concrete girder bridge was used as a case study for studying the time-variant seismic performance. The results revealed the importance of the joint effects of the multi-deterioration mechanisms when modeling the time-dependent seismic fragility of aging bridge systems, as well as the significance of considering the combined effects of prestress loss and cracking.

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Assessing the response and fragility of concrete bridges under multi-hazard effect of vessel impact and corrosion

Cited by 43 publications

References 47 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

Vessel‐Bridge Collision Reliability Assessment Based on Structural Dynamic Analysis

Time-Dependent Seismic Fragility of Typical Concrete Girder Bridges under Chloride-Induced Corrosion

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