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Optimisation of suspended-deck bridge design: a case study.

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Title: Optimisation of suspended-deck bridge design: a case study.
Authors: Mascolo, Ida1 (AUTHOR), Modano, Mariano2 (AUTHOR) mariano.modano@unina.it
Source: Australian Journal of Structural Engineering. Jul2020, Vol. 21 Issue 3, p244-253. 10p. 1 Color Photograph, 7 Diagrams, 3 Charts, 2 Graphs.
Subjects: Bridge design & construction, Cable-stayed bridges, Stress concentration, Mathematical analysis, Linear statistical models, Arches
Abstract: The study deals with the optimum suspended-deck bridge (i.e. suspension, cable-stayed and tied-arch bridges) design through cable adjustment. An easy linear analysis procedure is proposed based on the Force Equilibrium Method. It includes a preliminary identification of the objective function through a mathematical Sensitivity Analysis (SA) and an optimisation procedure based on the Influence Matrix Method (IMM). It neglects time-dependent effects and geometric nonlinearities. In spite of its simplicity, the proposed approach has proven to be good and functional and, on account of its straightforward physical meaning, also suitable to practising engineers. It aims to obtain an optimal moment distribution on the deck with a reasonable increment in the cable forces. An optimal distribution of stress in the cables can also be pursued. The proposed procedure is rather general and can be applied to both the design and the construction stages. The Gravina Bridge in Matera, Italy, is used as a model to illustrate the method and its applicability to practical engineering problems. [ABSTRACT FROM AUTHOR]
Copyright of Australian Journal of Structural Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 144655099
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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IllustrationInfo
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  Data: Optimisation of suspended-deck bridge design: a case study.
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  Data: <searchLink fieldCode="AR" term="%22Mascolo%2C+Ida%22">Mascolo, Ida</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Modano%2C+Mariano%22">Modano, Mariano</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> mariano.modano@unina.it</i>
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  Data: <searchLink fieldCode="JN" term="%22Australian+Journal+of+Structural+Engineering%22">Australian Journal of Structural Engineering</searchLink>. Jul2020, Vol. 21 Issue 3, p244-253. 10p. 1 Color Photograph, 7 Diagrams, 3 Charts, 2 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Bridge+design+%26+construction%22">Bridge design & construction</searchLink><br /><searchLink fieldCode="DE" term="%22Cable-stayed+bridges%22">Cable-stayed bridges</searchLink><br /><searchLink fieldCode="DE" term="%22Stress+concentration%22">Stress concentration</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+analysis%22">Mathematical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Linear+statistical+models%22">Linear statistical models</searchLink><br /><searchLink fieldCode="DE" term="%22Arches%22">Arches</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The study deals with the optimum suspended-deck bridge (i.e. suspension, cable-stayed and tied-arch bridges) design through cable adjustment. An easy linear analysis procedure is proposed based on the Force Equilibrium Method. It includes a preliminary identification of the objective function through a mathematical Sensitivity Analysis (SA) and an optimisation procedure based on the Influence Matrix Method (IMM). It neglects time-dependent effects and geometric nonlinearities. In spite of its simplicity, the proposed approach has proven to be good and functional and, on account of its straightforward physical meaning, also suitable to practising engineers. It aims to obtain an optimal moment distribution on the deck with a reasonable increment in the cable forces. An optimal distribution of stress in the cables can also be pursued. The proposed procedure is rather general and can be applied to both the design and the construction stages. The Gravina Bridge in Matera, Italy, is used as a model to illustrate the method and its applicability to practical engineering problems. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Australian Journal of Structural Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1080/13287982.2020.1778433
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      – Code: eng
        Text: English
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        PageCount: 10
        StartPage: 244
    Subjects:
      – SubjectFull: Bridge design & construction
        Type: general
      – SubjectFull: Cable-stayed bridges
        Type: general
      – SubjectFull: Stress concentration
        Type: general
      – SubjectFull: Mathematical analysis
        Type: general
      – SubjectFull: Linear statistical models
        Type: general
      – SubjectFull: Arches
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      – TitleFull: Optimisation of suspended-deck bridge design: a case study.
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            NameFull: Mascolo, Ida
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              M: 07
              Text: Jul2020
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              Y: 2020
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