Accelerated Bridge Construction

Azizinamini, Atorod

doi:10.1061/(asce)be.1943-5592.0001643

Cited by 11 publications

(3 citation statements)

References 20 publications

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“…[bh + (α E − 1)A s ]x c = 1 2 bh 2 + (α E − 1)A s h 0 ⇒ x c = 1 2 bh 2 +(α E −1)A s h 0 bh+(α E −1)A s (4)…”

Section: Calculation Of Flexural Strengthunclassified

“…The steel-concrete composite girder bridge takes full advantage of steel and concrete. Under the background of bridge industrialization, steel-concrete composite girder bridges have broad application prospects in small and medium-span spans [1]. However, the problem of low crack resistance of precast bridge deck joints has always been a key problem of durability [2].…”

Section: Introductionmentioning

confidence: 99%

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Flexural Behavior of Prefabricated RC Bridge Deck with Different Joint Materials

et al. 2023

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This study investigated the flexural behavior of prefabricated RC bridge decks with different joint materials, normal strength concrete or UHPC (normal strength concrete for RC deck, while UHPC means ultra-high performance concrete). A total of three specimens were tested and subjected to four-point bending loads. The load–deflection curve, strain curve, load–crack width curve, and failure mode were analyzed. Numerical models with cohesive models were built and verified with test results to explore the force-transferring mechanism. The results show that UHPC effectively improved the crack strength, flexural strength, and failure mode. Compared with the joint with normal-strength concrete, the crack strength and flexural strength increased by 66.7% and 6%, respectively. The failure mode of the specimen with UHPC as joint material changed from a concentrated cracking failure of the joint to a multi-crack development failure. The behavior of the specimen with UHPC as joint material was similar to the monolithically cast specimen. In addition, the application of the current design method was evaluated and compared with test results.

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“…[bh + (α E − 1)A s ]x c = 1 2 bh 2 + (α E − 1)A s h 0 ⇒ x c = 1 2 bh 2 +(α E −1)A s h 0 bh+(α E −1)A s (4)…”

Section: Calculation Of Flexural Strengthunclassified

Section: Introductionmentioning

confidence: 99%

Flexural Behavior of Prefabricated RC Bridge Deck with Different Joint Materials

et al. 2023

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“…Since the 1970s, assembled beam bridges have gained global prominence due to their inherent advantages, which include structural simplicity, constructional convenience, high industrialization, and cost-effectiveness (Azizinamini 2020; Zhang and Alam 2020). The assembly process for the superstructure of these bridges typically encompasses several key steps: the on-site erection of precast beams, the casting of crucial transverse connections like hinge joints and diaphragms, and the subsequent addition of deck pavement and accompanying accessories.…”

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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Effect of interfacial treatments on wet joints performance in steel-UHTCC composite bridge decks

Wang,

Li,

Tong

et al. 2024

Engineering Structures

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Accelerated Bridge Construction

Cited by 11 publications

References 20 publications

Flexural Behavior of Prefabricated RC Bridge Deck with Different Joint Materials

Flexural Behavior of Prefabricated RC Bridge Deck with Different Joint Materials

Performance monitoring of assembled beam bridges using displacement spectrum similarity measure

Effect of interfacial treatments on wet joints performance in steel-UHTCC composite bridge decks

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