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In This Issue
https://asbi-assoc.org/wp-content/uploads/2023/07/Box-Girder-Segments-PCIASBIEnglish.pdf
The Perspective on page 6 highlights efficiency in concrete segmental box-girder design and fabrication. This is a link
to the AASHTO-PCI-ASBI Segmental Box Girder Standards for Span-by-Span and Balanced Cantilever Construction. The
use of standardized shapes could open the door for precast concrete segmental superstructures to be an economical
option for more projects.
https://rosap.ntl.bts.gov/view/dot/68881/dot_68881_DS1.pdf
This is a link to download the University of Nebraska–Lincoln report
Truck Platooning Effects on Girder Bridges: Phase II –
Service. The Professor’s Perspective on page 38 is the fourth article in a series dedicated to investigating the statistical
reliability indices that should be used to accommodate truck platoons.
https://www.pci.org/PCI/PCI/Project_Resources/Project_Profile/Project_Profile_Details.aspx?ID=23546
The project to widen River Road over Harrods Creek Bridge, which is mentioned in the Focus article about Palmer
Engineering on page 14, won the PCI Design Award for best rehabilitated bridge in 2011. Palmer Engineering served as
specialty engineer for this challenging project to widen an existing one-lane bridge to two lanes while preserving the
historic character of the original span across Harrods Creek. This link includes the PCI Design Award profile of the project,
with additional photos and an overview video about the bridge..
https://www.youtube.com/watch?v=uWxwBzTEgEA
A video showing the construction progress of the Mount Vernon Viaduct replacement is available at this link from
the San Bernardino County Transportation Authority. The new structure, which spans over 3rd Street, four Metrolink
regional rail lines, and 18 Burlington Northern Santa Fe railroad lines, is featured in the Project article on page 23.
The project team chose precast, prestressed concrete girders for this project based on their efficiency and an outstanding span-to-depth ratio.
https://nationalconcretebridge.org/seminars
The Perspective on page 10 discusses the ethical implications of the normalization of deviance. The article is derived from
ethics lessons shared by the author in the National Concrete Bridge Council’s (NCBC’s) Concrete Bridge Seminar: Concepts
for Extending Spans. This is a link to NCBC’s upcoming seminars.
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