Seismic Performance of Precast Prestressed Concrete Bridge Girders Using Field-Cast Ultrahigh-Performance Concrete Connections

Huang, Chao; Song, Jianwei; Zhang, Nasi; Lee, George C.

doi:10.1061/(asce)be.1943-5592.0001416

Cited by 19 publications

(9 citation statements)

References 18 publications

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“…Some ways of improving the performance of shear keys were proposed. Huang et al (2019c) proposed that UHPC connections are suitable for medium/high seismic areas. Dong et al (2019) analyzed the factors affecting the performance of the pre-tensioned bent cap and suggested to use the general, noniterative sectional shear design method to design the section.…”

Section: Prefabricated Bridge Superstructurementioning

confidence: 99%

Review of annual progress of bridge engineering in 2019

Zhao

Yuan

Wei

et al. 2020

ABEN

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Bridge construction is one of the cores of traffic infrastructure construction. To better develop relevant bridge science, this paper introduces the main research progress in China and abroad in 2019 from 13 aspects, including concrete bridges and the high-performance materials, the latest research on steel-concrete composite girders, advances in box girder and cable-supported bridge analysis theories, advance in steel bridges, the theory of bridge evaluation and reinforcement, bridge model tests and new testing techniques, steel bridge fatigue, wind resistance of bridges, vehicle-bridge interactions, progress in seismic design of bridges, bridge hydrodynamics, bridge informatization and intelligent bridge and prefabricated concrete bridge structures.

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Section: Prefabricated Bridge Superstructurementioning

confidence: 99%

Review of annual progress of bridge engineering in 2019

Zhao

Yuan

Wei

et al. 2020

ABEN

View full text Add to dashboard Cite

show abstract

“…Various factors contributing to potential damage were investigated, including fatigue damage (Li 2015) and temperature and humidity (Hussein et al, 2017). Scholars have sought to address this issue by enhancing design aspects, encompassing innovations in hinge joint structures (Alampalli 1998), transverse pre-stressing methods (Porter et al, 2012), and the utilization of ultra-high-performance concrete (Hussein et al, 2019; Huang et al, 2019; Jiang et al, 2020; Semendary 2018), among others.…”

Section: Introductionmentioning

confidence: 99%

Performance monitoring of assembled beam bridges using displacement spectrum similarity measure

Zheng,

Dan,

Zhong

2023

Advances in Structural Engineering

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The assembled beam bridge is a widespread construction, with transverse connections uniting precast beams to jointly support loads. These connections, while crucial, are the most vulnerable elements in such structures. Therefore, the development of an effective index for continuous condition assessment remains the cornerstone of structural health monitoring. The Displacement Spectrum Similarity Measure index, as per ideal conditions in numerical simulations, has shown insensitivity to short-term vehicle loads and sensitivity to transverse connection stiffness. This study extends its scope to address potential real-world interference factors, including measurement errors and deck pavement damage. Specifically, we introduce Gaussian white noise to simulate measurement errors and incorporate additional vehicle loads to emulate the impact of pavement damage. Numerical simulations confirm the robustness of the index against these challenges. Additionally, a real-time index extraction scheme is proposed and implemented on an operational bridge. The results reveal a close alignment between the transverse connection condition assessed by the index and the findings obtained through on-site surveys, thereby substantiating the viability and effectiveness of the index for real-world engineering contexts.

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“…The field-cast UHPC engages discrete connectors both in the deck and on the girder and, through its high sustained tensile capacity, transfers applied forces between the prefabricated components [12,13]. Researches have shown that the field-cast UHPC connections are capable of meeting critical design, construction, and response requirements [14][15][16]. Moreover, the dimensions and complexity of the joint are significantly reduced, and the speed of construction is improved.…”

Section: Introductionmentioning

confidence: 99%

Static and Fatigue Behavior of Rubber-Sleeved Stud Shear Connectors as Part of Field-Cast Ultra-High Performance Concrete Connections

Zhang

2020

Materials

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Field-cast ultra-high performance concrete (UHPC) connections are an innovative and prospective solution for combining full-depth precast concrete decks and steel girders. However, previous studies show that the slip capacity of stud shear connectors embedded in UHPC cannot meet the requirements for ductile connectors by Eurocode 4, which can reduce the resistance of steel and concrete composite members. In this study, the rubber-sleeved stud shear connector, which is a composite of ordinary stud and rubber sleeve, was adopted for the field-cast UHPC connections. Push-out tests were conducted to investigate the static and fatigue behavior of the rubber-sleeved stud shear connector as part of field-cast UHPC connections. Results of static tests showed that the rubber-sleeved stud shear connector has sufficient deformation capacity and its slip capacity is 1.5 times that of the ordinary stud shear connector. Compared to ordinary stud shear connectors, UHPC with high strength and stiffness has a relatively small effect on improving the shear strength and stiffness of rubber-sleeve stud shear connectors. Results of fatigue tests showed that the rubber-sleeved stud shear connector in UHPC has similar fatigue behavior to that in normal strength concrete. Though UHPC improves the restraint to the stud deformation, the influence of rubber sleeves is still decisive in determining the fatigue behavior of rubber-sleeve stud shear connectors. In addition, based on the results of strain gauges at stud roots, it was found that the crack initiation process consumes a small proportion of the fatigue life of rubber-sleeved stud shear connectors, which is about 5%.

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Seismic Performance of Precast Prestressed Concrete Bridge Girders Using Field-Cast Ultrahigh-Performance Concrete Connections

Cited by 19 publications

References 18 publications

Review of annual progress of bridge engineering in 2019

Review of annual progress of bridge engineering in 2019

Performance monitoring of assembled beam bridges using displacement spectrum similarity measure

Static and Fatigue Behavior of Rubber-Sleeved Stud Shear Connectors as Part of Field-Cast Ultra-High Performance Concrete Connections

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