Field measurement and practical design of a lightweight composite bridge deck

Pei, Bida; Li, Lifeng; Shao, Xudong; Wang, Lianhua; Yan, Zhang

doi:10.1016/j.jcsr.2018.05.005

Cited by 25 publications

(8 citation statements)

References 3 publications

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“…Steel-UHPC composite bridge decks have been widely applied in bridge engineering in recent years [1][2][3][4][5]. The UHPC structural layer can significantly improve the overall stiffness of steel bridge decks while ensuring their lightweight and high-strength advantages, thereby effectively improving the fatigue performance of the steel bridge deck [6,7].…”

Section: Introductionmentioning

confidence: 99%

Study of Fatigue Performance of Ultra-Short Stud Connectors in Ultra-High Performance Concrete

An,

Wang,

Zhuang

et al. 2024

Buildings

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Steel–UHPC composite bridge decking made of ultra-high performance concrete (UHPC) has been progressively employed to reinforce historic steel bridges. The coordinated force and deformation between the steel deck and UHPC are therefore greatly influenced by the shear stud connectors at the shear interface. Four fatigue push-out specimens of ultra-short studs with an aspect ratio of 1.84 in UHPC were examined to investigate the fatigue properties of ultra-short studs with an aspect ratio below 2.0 utilized in UHPC reinforcing aged steel bridges. The test results indicated that three failure modes—fracture surface at stud shank, fracture surface at steel flange, and fracture surface at stud cap—were noted for ultra-short studs in UHPC under various load ranges. The fatigue life decreased from 1287.3 × 104 to 24.4 × 104 as the shear stress range of the stud increased from 88.2 MPa to 158.8 MPa. The UHPC can ensure that the failure mode of the specimens was stud shank failure. Based on the test and literature results, a fatigue strength design S–N curve for short studs in UHPC was proposed, and calculation models for stiffness degradation and plastic slip accumulation of short studs in UHPC were established. The employment of ultra-short studs in the field of UHPC reinforcing aging steel bridges can be supported by the research findings.

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Section: Introductionmentioning

confidence: 99%

Study of Fatigue Performance of Ultra-Short Stud Connectors in Ultra-High Performance Concrete

An,

Wang,

Zhuang

et al. 2024

Buildings

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“…Field measurements were conducted on the Fengxi Bridge to examine the effects of a UHPC layer on the stress of the composite bridge deck. e UHPC layer resulted in a substantial decrease in the stresses of the rib-to-deck welds and the rib splice welds [7]. Wang et al [8] conducted a fatigue test of a basalt fiber-reinforced polymer (BFRP) shell-concrete composite bridge deck with prestressed BFRP strips.…”

Section: Introductionmentioning

confidence: 99%

Parameter Optimization and Bending Performance Analysis of a Corrugated Steel Plate-UHPC Composite Bridge Deck with PZ Shear Connectors

Wang

Zheng

Hou

et al. 2022

Advances in Materials Science and Engineering

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Composite bridge decks consisting of steel plates and concrete are used to minimize fatigue cracking and damage of asphalt pavement of orthotropic steel bridge decks subjected to wheel loads. This paper presents a methodology to optimize the parameters and mechanical performance of a corrugated steel plate-ultrahigh-performance concrete (UHPC) composite bridge deck with panel zone (PZ) shear connectors using the improved non-dominated sorting genetic algorithm (NSGA-II). A 3-D finite element model is established in ANSYS Workbench software to conduct numerical parameter analysis, and ABAQUS software is used to analyze the optimized model’s mechanical performance. The results show a significant improvement in the mechanical performance of the optimized composite bridge deck, with a 27.66% decrease in the maximum stress in the UHPC layer. The vertical displacement of the optimized composite bridge deck increases sharply when the load reaches 90% of the ultimate load, and a significant change in the strain is caused by the sliding displacement between the UHPC layer and steel plate. The bottom part of the corrugation yields first in the middle span, followed by failures of the ribs. In addition, as the tensile stress increases, damage occurs first in the UHPC layer near the PZ shear connectors in the shear bending area and the bottom in the bending area, expanding significantly to the entire bending and loading areas. The results indicate that the parameter optimization of the corrugated steel plate-UHPC composite bridge deck using NSGA-II improves the structure’s bending performance.

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“…When the cover thickness is large or the reinforcement ratio is reduced, the cracking stress is significantly reduced. Zhang et al [ 16 , 17 , 18 , 19 ] studied the fatigue performance in the longitudinal direction of LWCD experimentally and theoretically. The results showed that the use of a thin UHPFRC (45–50 mm) layer could decrease the fatigue stress in OSD by 30–80% and the LWCD has favorable fatigue performances in the longitudinal direction.…”

Section: Introductionmentioning

confidence: 99%

Study on Static and Fatigue Behaviors of Steel-UHPFRC Composite Deck Structure

et al. 2022

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Ultra-high-performance fiber-reinforced cementitious composite (UHPFRC) is used in orthotropic steel deck (OSD) to form a lightweight composite deck structure (LWCD), which is expected to solve the problems of fatigue cracking of traditional steel deck and pavement damage. This paper aims to study the influence of key design parameters on longitudinal bending and transverse fatigue performance, as well as the ultimate bearing capacity calculation theory of the LWCD. A local finite-element (FE) model was built to evaluate the vehicle-induced stress ranges of six typical fatigue-prone details. In total, eight negative bending tests on steel-UHPFRC composite beams and one fatigue test on a steel-UHPFRC composite plate were conducted to investigate the longitudinal bending performance and the transverse flexural fatigue behavior of the LWCD, respectively. The results show that adding a 60-mm UHPFRC layer can significantly reduce the stress amplitude of six typical fatigue details by 44.8% to 90%. The failure mode of the longitudinal bending tests is the U-rib buckle and all UHPFRC layers exhibit multiple cracking behaviors when the specimens failed. The longitudinal cracking stresses of the specimens are between 20.0 MPa to 27.3 MPa. The reinforcement ratio and cover thickness have a great influence on the cracking stress. While the ultimate bearing capacity of specimens with different parameters has little difference. The calculation method of the ultimate bearing capacity of a steel-UHPFRC composite structure is proposed. When the strain at the bottom of the u-rib is taken as 1.2 times the design yield strain, the calculated results are in good agreement with the experimental results. No fatigue failure was observed after 66.12 million fatigue cycles under the design load, highlighting the favorable fatigue resistance of the proposed LWCD.

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Field measurement and practical design of a lightweight composite bridge deck

Cited by 25 publications

References 3 publications

Study of Fatigue Performance of Ultra-Short Stud Connectors in Ultra-High Performance Concrete

Study of Fatigue Performance of Ultra-Short Stud Connectors in Ultra-High Performance Concrete

Parameter Optimization and Bending Performance Analysis of a Corrugated Steel Plate-UHPC Composite Bridge Deck with PZ Shear Connectors

Study on Static and Fatigue Behaviors of Steel-UHPFRC Composite Deck Structure

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