Optimized Transverse–Longitudinal Hybrid Construction for Sustainable Design of Welded Steel Plate Girders
Autor(en): |
Iván Negrin
Moacir Kripka Víctor Yepes |
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Medium: | Fachartikel |
Sprache(n): | Englisch |
Veröffentlicht in: | Advances in Civil Engineering, Januar 2024, v. 2024 |
Seite(n): | 1-19 |
DOI: | 10.1155/2024/5561712 |
Abstrakt: |
I-section girders with different types of steel in the flanges and web (fyf > fyw, respectively) are known as transverse hybrid girders. These have proven to be more economical than their homogeneous counterparts. However, the use of hybrid configurations in the longitudinal direction of the element has yet to be studied. This paper uses optimization techniques to explore the possibility of constructing transverse and longitudinally hybrid (TLH) steel girders. The optimization objective is to minimize the manufacturing cost, including seven activities besides the material cost. The geometrically double symmetric I-girder design subjected to a uniform transverse load is performed using Eurocode 3 specifications. Nine case studies are implemented, varying the element span (L) and the applied load. The results show that establishing various configurations along the length of the element is beneficial. The optimum number of transition points is six, meaning the girder will have four configurations, i.e., one central and three others symmetrically distributed toward each half of the element. The optimum position for the first transition would be at |
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Datenseite - Reference-ID
10786134 - Veröffentlicht am:
20.06.2024 - Geändert am:
20.06.2024