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- W2015156960 abstract "International Journal of Computational Engineering ScienceVol. 02, No. 02, pp. 199-221 (2001) No AccessTOPOLOGY OPTIMIZATION OF BRIDGE TYPE STRUCTURES WITH STRESS AND DISPLACEMENT CONSTRAINTSHONG GUAN, ANDREA Y.-J. CHEN and YEW-CHAYE LOOHONG GUANSchool of Engineering, Griffith University, Gold Coast Campus, PMB50 Gold Coast Mail Center, Queensland 9726, Australia Search for more papers by this author , ANDREA Y.-J. CHENBureau of Reconstruction, Taipei City Government, 1 Shihfu Road, Hsinyi District, Taipei, Taiwan, R.O.C. Search for more papers by this author and YEW-CHAYE LOOSchool of Engineering, Griffith University Gold Coast Campus, PMB50 Gold Coast Mail Center, Queensland 9726, Australia Search for more papers by this author https://doi.org/10.1142/S1465876301000295Cited by:1 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractIn recent years there has been a growing interest worldwide in stress based topology optimization which aims at achieving least weight and more uniformly stressed designs. This paper presents the optimum topology design of arch, tied arch and cable-stayed bridges by means of the evolutionary structural optimization method (ESO). This can be accomplished by employing the evolutionary optimization scheme incorportaing the principal stress criteria, thereby utilizing the available tensile and compressive materials more effectively. In addition to the stress constraint, the displacement constraint is also considered in the optimization process. Two performance index formulae have been proposed for tension- and compression-dominant designs based on the element stresses. They can be used effectively to reflect the variations of the maximum principal stresses and the design volume during the evolutionary process, hence indicating the optimum topology for the final design. The optimum designs of the aforementioned three types of bridges are investigated under various loading conditions. Further, comparisons are made between each individual design for a certain type of bridge and the performance of the design is also examined.Keywords:Topology optimizationtension- and compression-dominant optimum designsstress and displacement constraintsperformance indexbridges FiguresReferencesRelatedDetailsCited By 1Strut-and-tie model of deep beams with web openings - An optimization approachHong Guan10 Mar 2005 | Structural Engineering and Mechanics, Vol. 19, No. 4 Recommended Vol. 02, No. 02 Metrics History KeywordsTopology optimizationtension- and compression-dominant optimum designsstress and displacement constraintsperformance indexbridgesPDF download" @default.
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- W2015156960 title "TOPOLOGY OPTIMIZATION OF BRIDGE TYPE STRUCTURES WITH STRESS AND DISPLACEMENT CONSTRAINTS" @default.
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