Full-scale experimental and numerical investigation on the ductility, plastic redistribution, and redundancy of deteriorated concrete bridges

Wang, Xiaoming; Mao, Xiangyuan; Frangopol, Dan M.; Dong, You; Wang, Huan; Pei, Tao; Qi, Zezhong; Tang, Shengpeng

doi:10.1016/j.engstruct.2021.111930

Cited by 8 publications

(4 citation statements)

References 61 publications

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“…The peculiarity of this structure was that during its construction, all fourteen VTK-33u beams of The data analysis given in Table 2 shows that the bending moments in beams No. 1,2,3,4,11,12,13 in superstructure No. 1, after laying the overhead slab and asphalt pavement, have an insignificant value and there is a deflection in beam No.…”

Section: Methodsmentioning

confidence: 99%

Ensuring Operational Reliability of Overpass On "Almaty-Kapshagai" Highway Section in Kazakhstan

Jalairov¹,

Kumar²,

Kassymkanova³

et al. 2022

Komunikácie

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The article presents results of the overpass condition survey, technical survey, static tests and assessment of the structure operational reliability, a doubledecker overpass on Almaty-Kapshagai highway section in Kazakhstan. Technical survey determined the dimensions of the overpass, the camber of reinforced concrete superstructures main beams and checked the values of the overpass roadway actual transverse and longitudinal slopes. The calculation and analytical assessment of the overpass load-bearing structures, for the strength of the bending moment, are performed. Static tests of the overpass split beam superstructure of a length of 33.0m were conducted. Trucks loaded with ballast were accepted as a test load.

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Section: Methodsmentioning

confidence: 99%

Ensuring Operational Reliability of Overpass On "Almaty-Kapshagai" Highway Section in Kazakhstan

Jalairov¹,

Kumar²,

Kassymkanova³

et al. 2022

Komunikácie

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“…In addition, the dense-girder arrangement increases the transverse force-transmission paths of the structural system and improves the redundancy and robustness of the system when dealing with extreme loads or disaster situations [40]. When local members fail, the stress of the structure be can easily redistributed due to the strong composite bridge deck and girder-end crossbeams and the further spread of damage can be significantly limited by using alternate transmission paths to distribute the loads to other H-shaped girders.…”

Section: Dense-girder-h-shape Composite Girdermentioning

confidence: 99%

Accelerated Bridge Construction Case: A Novel Low-Carbon and Assembled Composite Bridge Scheme

Kang,

Xu,

et al. 2024

Buildings

Self Cite

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Modern bridge construction towards a higher degree of low carbonization and assembly has been the general trend, while developing and broadening the low-carbon and assembled-oriented Accelerated Bridge Construction (ABC) technology can better realize the trade-offs between construction quality, efficiency, cost and sustainability. In the current mainstream ABC technologies such as precast-assembled concrete bridge and assembled steel bridge schemes, it is difficult to achieve an excellent balance between the above multicriterion trade-offs. To this end, this paper proposes a novel low-carbon and assembled composite bridge scheme as an innovative case of ABC technology based on a 26.7 km-length urban viaduct project in China with urgent environmental protection and assembly demands. Construction sustainability, the comprehensive economy and low-carbon performance are well balanced by the collaborative application of new steel–concrete composite structures, the rapid assembly interface design and low-carbon material technologies. The proposed scheme has been applied to a completed real-scale bridge, and the whole construction process only experienced 105 days of effective time, accompanied with slight environmental interference and construction noise and a small amount of labor and equipment input. In addition, the safety of the bridge, the rationality of the design concept and the calculation method have been verified by the static and dynamic loading tests of the real-scale bridge.

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“…At present, inspections and safety diagnoses are regularly performed for the maintenance of bridges, and the load-carrying capacity of bridges is evaluated to identify their performance degradation and level of deterioration [12][13][14]. In general, the vehicle loading test is conducted to evaluate the load-carrying capacity of a bridge [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Estimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test

et al. 2021

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Maintenance of bridges in use is essential and measuring the live load distribution factor (LLDF) of a bridge to examine bridge integrity and safety is important. A vehicle loading test has been used to measure the LLDF of a bridge. To carry this out on a bridge in use, traffic control is required because loading must be performed at designated positions using vehicles whose details are known. This makes it difficult to measure LLDF. This study proposed a method of estimating the LLDF of a bridge using the vertical displacement response caused by traveling vehicles under ambient vibration conditions in the absence of vehicle control. Since the displacement response measured from a bridge included both static and dynamic components, the static component required for the estimation of LLDF was extracted using empirical mode decomposition (EMD). The vehicle loading and ambient vibration tests were conducted to verify the validity of the proposed method. It was confirmed that the proposed method can effectively estimate the LLDF of a bridge if the vehicle type and driving lane on the bridge are identified in the ambient vibration test.

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Full-scale experimental and numerical investigation on the ductility, plastic redistribution, and redundancy of deteriorated concrete bridges

Cited by 8 publications

References 61 publications

Ensuring Operational Reliability of Overpass On "Almaty-Kapshagai" Highway Section in Kazakhstan

Ensuring Operational Reliability of Overpass On "Almaty-Kapshagai" Highway Section in Kazakhstan

Accelerated Bridge Construction Case: A Novel Low-Carbon and Assembled Composite Bridge Scheme

Estimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test

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