Built-Up Closed-Rib Steel Orthotropic Bridge Decks

A new built-up closed-rib section is proposed that may improve the installation, performance, and durability of orthotropic steel bridge decks. The rib is composed of two partial or whole standard hot-rolled steel sections which are connected by a steel plate. The concept is used to design a built-u...

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Bibliographic Details
Published inCivilEng Vol. 3; no. 4; pp. 960 - 978
Main Authors Natsheh, Sufian H., Menzemer, Craig C.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.12.2022
Subjects
Bridge decks
Bridges
built-up
closed rib
Crack initiation
fatigue
Fatigue strength
finite element
Franklin, Benjamin (1706-1790)
Hot rolling
Hot-rolled steel
Load
Metal fatigue
open rib
Orthotropic bridges
orthotropic deck
Steel bridges
Steel decks
Steel plates
Stress concentration
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Summary:A new built-up closed-rib section is proposed that may improve the installation, performance, and durability of orthotropic steel bridge decks. The rib is composed of two partial or whole standard hot-rolled steel sections which are connected by a steel plate. The concept is used to design a built-up closed-rib replacement for the Benjamin Franklin Bridge deck. In addition, section performance was compared with the actual bulb section as well as a typical trapezoidal section through finite element simulations. The analyses indicate that the built-up section has smaller stress concentration values as compared with the other sections, and hence, improved fatigue resistance is expected. Finally, it is concluded that the built-up rib has potential to be considered in future orthotropic steel deck designs.
ISSN:2673-4109
2673-4109
DOI:10.3390/civileng3040054