Low-Temperature Performance and Evaluation Index of Gussasphalt for Steel Bridge Decks

Ye, Hongyu; Wang, Xuancang; Fang, Naren; Su, Zhongming

doi:10.1155/2019/2951412

Cited by 6 publications

(2 citation statements)

References 22 publications

(25 reference statements)

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“…The axle load conversion method for a bridge deck pavement system based on fatigue equivalence is as follows: BZZ-100 (horizontal force coefficient f is taken as 0.15) is used as the standard axle load based on bond shear fatigue axle load conversion [34]. The maximum interlaminar shear stress ratio with different axle loads is defined [35] in Equation 7:…”

Section: Axle Load Conversion Methods Based On Shear Fatigue Damagementioning

confidence: 99%

Study on Fatigue Characteristics and Interlayer Design Method of Waterproof Cohesive Bridge Deck Layer

Fang

Wang

et al. 2019

Applied Sciences

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Shear fatigue damage to the waterproof cohesive layer has not received enough attention in bridge deck pavement design. Meanwhile, there is less theoretical basis for the design of a waterproof cohesive layer. In this study, direct shear and shear fatigue tests were used to compare the shear strength and fatigue performance of waterproof adhesive materials under different disposal schemes for a cement slab surface, bonding materials, and spreading schemes, and the recommended optimal dosage of waterproof adhesive material for the bridge deck is given. Based on the shear fatigue tests results of indoor waterproof adhesive materials, an equation for prediction fatigue at 15 °C was established and temperature correction was applied. Based on these results, we propose a waterproof cohesive layer design method for bridge deck pavement with interlayer shear damage as the design index. The life expectancy of the shear damage between the decks was calculated for a real bridge deck. These results provide scientific guidance for design of a waterproof cohesive layer in a bridge deck, which can effectively extend the service life of a bridge deck.

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Section: Axle Load Conversion Methods Based On Shear Fatigue Damagementioning

confidence: 99%

Study on Fatigue Characteristics and Interlayer Design Method of Waterproof Cohesive Bridge Deck Layer

Fang

Wang

et al. 2019

Applied Sciences

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“…The fatigue life of three types of asphalt pavement structures was calculated according to the Chinese specifications [27,28].…”

Section: Verification By the Fatigue Lifementioning

confidence: 99%

Evaluation of the Coordination of Structural Layers in the Design of Asphalt Pavement

Fang

Wang

et al. 2020

Applied Sciences

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The purpose of asphalt pavement structural design is to get a materially-coordinated and structurally-durable product, and a pavement structure with good road performance by combining the structural layer materials reasonably. However, due to lack of a rational evaluation index on the parameter combinations of structural layer materials, the structural layer materials are poor in terms of coordination, have low efficiency, and the actual use period is much lower than the designed working life. Therefore, it is very important to conduct research evaluating the coordination of the structural layer materials. In this study, the sensitivity of mechanical parameters and equivalent envelope area are proposed as new indexes to evaluate the coordination of material design of asphalt pavement structure layers. Software is developed to calculate the equivalent envelope area that can quantitatively evaluate the coordination among different layers and visualize the mechanical transfer behavior of each structural layer. Based on the equivalent envelope area index, this study incorporates two new steps in the design of pavements, namely the structural form comparison and optimization, and proposes a new structural design process. Finally, the rationality and reliability of the equivalent envelope area index are verified by presenting fatigue life calculation and field verification in a test road. The results propose a clear evaluation index of the coordination of material design of each structural layer, which makes the structural design of the asphalt pavement more scientific and reasonable.

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A systematic review of steel bridge deck pavement in China

Chen¹,

Zhao²,

Qian³

et al. 2023

Journal of Road Engineering

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Low-Temperature Performance and Evaluation Index of Gussasphalt for Steel Bridge Decks

Cited by 6 publications

References 22 publications

Study on Fatigue Characteristics and Interlayer Design Method of Waterproof Cohesive Bridge Deck Layer

Study on Fatigue Characteristics and Interlayer Design Method of Waterproof Cohesive Bridge Deck Layer

Evaluation of the Coordination of Structural Layers in the Design of Asphalt Pavement

A systematic review of steel bridge deck pavement in China

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