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    Investigation of Cracks Observed on a Skewed Bridge Constructed Using Self-Propelled Modular Transporters

    Source: Journal of Performance of Constructed Facilities:;2020:;Volume ( 034 ):;issue: 005
    Author:
    Chnar Solae
    ,
    Mi G. Chorzepa
    ,
    Stephan A. Durham
    ,
    S. Sonny Kim
    DOI: 10.1061/(ASCE)CF.1943-5509.0001510
    Publisher: ASCE
    Abstract: This study investigates full-depth deck cracks observed on a skewed bridge, which was constructed using self-propelled modular transporters (SPMTs). To investigate the causes, three main factors associated with structural design, material design, and construction are reviewed. Specifically, the bridge performance under thermal and construction loading is investigated by conducting a nonlinear finite-element analysis. The analysis parameters include bridge deck geometry, boundary conditions, bearing details, and skew angles. The loading conditions mainly include thermal and differential deck movements induced during an SPMT move. The results are compared to a crack map created from two site visits. It is concluded that skewed decks are more susceptible to cracking than straight decks due to an asymmetric expansion and contraction. Additionally, semi-integral abutment designs in a skewed bridge increase the extent of cracking in the skewed corners of the abutment ends. It is recommended that a semi-integral abutment design be carefully considered when designing a skewed bridge and that bearing and expansion joint details need careful attention for accelerated bridge construction.
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      Investigation of Cracks Observed on a Skewed Bridge Constructed Using Self-Propelled Modular Transporters

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4268240
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    • Journal of Performance of Constructed Facilities

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    contributor authorChnar Solae
    contributor authorMi G. Chorzepa
    contributor authorStephan A. Durham
    contributor authorS. Sonny Kim
    date accessioned2022-01-30T21:27:41Z
    date available2022-01-30T21:27:41Z
    date issued10/1/2020 12:00:00 AM
    identifier other%28ASCE%29CF.1943-5509.0001510.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4268240
    description abstractThis study investigates full-depth deck cracks observed on a skewed bridge, which was constructed using self-propelled modular transporters (SPMTs). To investigate the causes, three main factors associated with structural design, material design, and construction are reviewed. Specifically, the bridge performance under thermal and construction loading is investigated by conducting a nonlinear finite-element analysis. The analysis parameters include bridge deck geometry, boundary conditions, bearing details, and skew angles. The loading conditions mainly include thermal and differential deck movements induced during an SPMT move. The results are compared to a crack map created from two site visits. It is concluded that skewed decks are more susceptible to cracking than straight decks due to an asymmetric expansion and contraction. Additionally, semi-integral abutment designs in a skewed bridge increase the extent of cracking in the skewed corners of the abutment ends. It is recommended that a semi-integral abutment design be carefully considered when designing a skewed bridge and that bearing and expansion joint details need careful attention for accelerated bridge construction.
    publisherASCE
    titleInvestigation of Cracks Observed on a Skewed Bridge Constructed Using Self-Propelled Modular Transporters
    typeJournal Paper
    journal volume34
    journal issue5
    journal titleJournal of Performance of Constructed Facilities
    identifier doi10.1061/(ASCE)CF.1943-5509.0001510
    page12
    treeJournal of Performance of Constructed Facilities:;2020:;Volume ( 034 ):;issue: 005
    contenttypeFulltext
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