Abstract
The design of a cast-in-place, post-tensioned concrete, multi-cell box girder bridge under combined torsion, shear, and flexure is presented in this example. The bridge covers three spans of different lengths, supported by two abutments and two bents; its cross-section consists of three 12 ft (3.7 m) lanes, two 10 ft (3.0 m) shoulders, and two concrete barriers. The detailed procedure for the design based on ACI 318-14 is presented, and a comparison is done with the design results for: AASHTO LRFD 2017, EN 1992-1-1:2004, and MC-2010. With this example, the authors illustrate the differences between provisions of the aforementioned codes for design of torsional effects, outlining the different theories and approaches used for each of these.
Original language | English |
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Title of host publication | Examples for the Design of Reinforced and Prestressed Concrete Members Under Torsion |
Editors | Eva Lantsoght, Gary Greene, Abdeldjelil Belarbi |
Publisher | American Concrete Institute |
Pages | 149-167 |
Number of pages | 19 |
Volume | SP-344 |
ISBN (Print) | 978-1-64195-114-2 |
Publication status | Published - 2020 |
Event | ACI Virtual Concrete Convention - Virtual conference Duration: 25 Oct 2020 → 29 Oct 2020 https://www.concrete.org/events/conventions/currentconvention.aspx |
Publication series
Name | ACI Special Publication |
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Publisher | ACI |
ISSN (Print) | 0193-2527 |
Conference
Conference | ACI Virtual Concrete Convention |
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Period | 25/10/20 → 29/10/20 |
Internet address |
Bibliographical note
Accepted Author ManuscriptKeywords
- box girder bridges
- prestressed concrete
- shear
- torsion