2023
DOI: 10.3390/app13084877
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Pavement Strategy Optimization of Cable-Stayed Bridges against the Negative Reaction Risks of Auxiliary Piers

Abstract: Because the adjustment of the stay cable tension and girder counterweight is limited at the operation stage it is a difficult problem to control the negative reaction risk of the auxiliary pier (NRRAP) caused by multisource construction uncertainties and traffic growth. This paper proposes a pavement strategy optimization to control the NRRAP by adjusting the pavement thickness. The pavement strategy optimization is formulated as a reliability-constrained, multiobjective optimization problem, which is resolved… Show more

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Cited by 2 publications
(4 citation statements)
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“…The components are prefabricated an the factory and transported to the site using large-scale transport equipment f assembly. The pre-embedded holes, steel bars or specific connecting devices a at the assembly interfaces between the capping beams and piers to realize the This technology can greatly promote ABC, but there are still the following p this project: (1) The standard size of the prefabricated capping beam is 42.3 overall weight is 700 t. The lifting weight is more than 200 t even if it is divide segments for assembly and the requirements for the trafficability of large-sca routes and the hoisting capacity of the equipment are extremely high. (2) The ber of assembly interfaces will bring the problems of the high demand of asse racy, complex connection details and the low reliability of the connection qua small number of superstructures and the low degree of standardization will As shown in Figure 3, for the P-ACB scheme, the superstructure generally adopts a prefabricated box girder or T-shape girder and the superstructure adopts precast-assembled concrete capping beams and piers.…”
Section: Overall Scheme Comparisonmentioning
confidence: 99%
See 2 more Smart Citations
“…The components are prefabricated an the factory and transported to the site using large-scale transport equipment f assembly. The pre-embedded holes, steel bars or specific connecting devices a at the assembly interfaces between the capping beams and piers to realize the This technology can greatly promote ABC, but there are still the following p this project: (1) The standard size of the prefabricated capping beam is 42.3 overall weight is 700 t. The lifting weight is more than 200 t even if it is divide segments for assembly and the requirements for the trafficability of large-sca routes and the hoisting capacity of the equipment are extremely high. (2) The ber of assembly interfaces will bring the problems of the high demand of asse racy, complex connection details and the low reliability of the connection qua small number of superstructures and the low degree of standardization will As shown in Figure 3, for the P-ACB scheme, the superstructure generally adopts a prefabricated box girder or T-shape girder and the superstructure adopts precast-assembled concrete capping beams and piers.…”
Section: Overall Scheme Comparisonmentioning
confidence: 99%
“…The pre-embedded holes, steel bars or specific connecting devices are designed at the assembly interfaces between the capping beams and piers to realize the connection. This technology can greatly promote ABC, but there are still the following problems for this project: (1) The standard size of the prefabricated capping beam is 42.3 m and the overall weight is 700 t. The lifting weight is more than 200 t even if it is divided into three segments for assembly and the requirements for the trafficability of large-scale transport routes and the hoisting capacity of the equipment are extremely high. (2) The large number of assembly interfaces will bring the problems of the high demand of assembly accuracy, complex connection details and the low reliability of the connection quality.…”
Section: Overall Scheme Comparisonmentioning
confidence: 99%
See 1 more Smart Citation
“…Displacement loading is applied in the FEM [25], the same as the loading method in the push-out test, i.e., downward displacement is imposed on the top surface of the specimen, and the concrete on the ground restrains the other degree of freedom for displacement. Specimen HS-MS is taken as a standard specimen, and the simulated testing result of HS-MS is compared with the actual measured results of HS14 in the push-out test, to verify the validity of the simulation method and the accuracy of the testing results.…”
Section: Loading and Algorithmmentioning
confidence: 99%