Fatigue life analysis of steel–concrete composite bridge considering road surface conditions

Bhetuwal, Utkarsha; Shrestha, Jagat Kumar; Pradhananga, Rojee

doi:10.1007/s41062-021-00730-7

Cited by 3 publications

(3 citation statements)

References 21 publications

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“…The toughness coefficient C and the ductility ratio β are shown in Table 4 [ 17 , 18 ]. Table 4 shows that the steel fiber significantly improves the ductility and toughness of the concrete matrix.…”

Section: Resultsmentioning

confidence: 99%

Test and Detection of Antifreezing and Anticorrosion Performance of Carbon Nanofiber Bridge Concrete

Yang

Wang

2022

International Journal of Analytical Chemistry

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In order to solve the problems of carbon nanotubes, steel fibers, and carbon nanotubes + steel fibers on the compressive strength and impact resistance of concrete, the author proposes a test method for the frost resistance and corrosion resistance of carbon nanofiber bridge concrete. Using carbon nanotubes and steel fibers as reinforcing materials, the effects of carbon nanotubes and steel fibers on the compressive strength and impact resistance of concrete were studied. Experimental results show that incorporating carbon nanotubes and steel fibers can improve the compressive strength of concrete. Compared with the single-doped carbon nanotubes, the single-doped steel fiber has a greater effect on the improvement of the impact resistance of the concrete. The toughness and ductility of carbon nanotubes and steel fiber reinforced concrete are improved again compared with that of single steel fiber reinforced concrete. The effect of adding 1% steel fiber +0.30% carbon nanotubes is the most significant in enhancing the performance of concrete. Conclusion. The synergistic effect of carbon nanotubes and steel fibers is more conducive in complementing each other's advantages and improving the performance of concrete.

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Section: Resultsmentioning

confidence: 99%

Test and Detection of Antifreezing and Anticorrosion Performance of Carbon Nanofiber Bridge Concrete

Yang

Wang

2022

International Journal of Analytical Chemistry

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“…For highway bridges, due to factors such as road surface roughness and expansion joints, fatigue vehicles passing through the bridge at certain speeds will inevitably impact the bridge, and the dynamic effects of vehicle loads accelerate bridge fatigue damage [17]. Previous studies have conducted analyses of bridge fatigue performance based on dynamic response numerical results, including the effects of vehicle speed, axle weight, road surface roughness, and lane configuration on bridge fatigue stress [18][19][20]. These studies indicate that dynamic vehicle loads increase with increasing vehicle weight and worsening road surface roughness, leading to the accumulation of fatigue damage [21,22].…”

Section: Introductionmentioning

confidence: 99%

Fatigue Evaluation of CFST Arch Bridge Based on Vehicle–Bridge Coupling Vibration Analysis

Hu,

Zhou,

Zheng

2024

Buildings

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This study proposes a fatigue life analysis method for long-span CFST arch bridges based on a vehicle–bridge coupled vibration analysis model, which can analyze the structural dynamic effects and the excessive fatigue damage caused by the passage of vehicles. In situ test analysis of bridge dynamic characteristics is carried out, and a numerical model considering the vehicle–bridge coupled system is validated according to the measured vibration modes, frequency, and displacement time history. The results indicate that the proposed vehicle–bridge coupled vibration numerical model can be used to simulate the dynamic response of the bridge under various conditions. The factors of vehicle speed, vehicle weight, and road surface condition are further selected to analyze the vehicle–bridge coupled vibration effect, and it is found that the response time history is more sensitive to the vehicle weight factor. In addition, the fatigue life of suspenders at different positions is compared, which is found to decrease significantly with a reduction in suspender length. Due to damage to the suspender caused by environmental erosion, the cross-sectional area decreases and the stress amplitude changes, resulting in a decrease in the fatigue reliability of the suspender under different conditions.

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“…The contribution of corrugated steel web to the bending strength of steel girders and girders with concrete-filled tubular flanges has been investigated in several previous works [9][10][11]. The shear strength and buckling mode of steel girders with corrugated webs were also investigated in previous studies [12][13][14][15][16][17][18][19]. The implementation of corrugated metal webs in pre-stressed concrete girders can be found in the works of Machimdamrong et al [20] and Jiang [21].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Shear Span on the Behavior of Triangularly Corrugated Web Steel Girders

Abdullah

Almayah

2023

Civ Eng J

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Built-up steel girders have many applications in structural engineering, both in bridges and buildings. Flat web steel girders, which are the traditional choice, involve several weaknesses. Girders with corrugated webs were found to be more effective in their load-carrying capacity and deflection than girders with flat webs. In light of this, an effort is made in this work to examine how the addition of triangular corrugated webs influences the load-bearing capacity and deflection of steel girders. This study aimed to determine whether or not the strength of built-up steel with corrugated webs could be improved. A concentrated midspan load was applied to six simply supported steel beams of varying span-to-depth ratios (1.0, 1.833, and 2.5) and web corrugation amplitudes (30 and 60 mm). An increase in ultimate strength of 15.7% to 35.1% was found for webs with triangular corrugations of 30 mm and from 2% to 29.1% for webs with corrugations of 60 mm. A reduction in deflection of up to 35.3% can be attained when using triangular corrugated webs. It was also found that using webs with 30 mm corrugations was more efficient than using webs with 60 mm corrugations. The effect of corrugation was found to fade when the span-to-depth ratio increased to 2.5. This led to the conclusion that using webs of 30 mm amplitude of triangular corrugation could improve the strength and serviceability of steel girders. Doi: 10.28991/CEJ-2023-09-02-09 Full Text: PDF

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Fatigue life analysis of steel–concrete composite bridge considering road surface conditions

Cited by 3 publications

References 21 publications

Test and Detection of Antifreezing and Anticorrosion Performance of Carbon Nanofiber Bridge Concrete

Test and Detection of Antifreezing and Anticorrosion Performance of Carbon Nanofiber Bridge Concrete

Fatigue Evaluation of CFST Arch Bridge Based on Vehicle–Bridge Coupling Vibration Analysis

The Effect of Shear Span on the Behavior of Triangularly Corrugated Web Steel Girders

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