JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 42
bridge
AASHTO-approved composite
bridge system ready for USA roll-out
By
Design guidelines for corrosion-resistant bridge construction
were published in January 2013 by the American Association
of State Highway and Transportation Officials (AASHTO). These
LRFD (Load and Resistance Factor Design) guide specifications
present provisions for the design of pre-engineered arch tubes
for use as structural components in bridges.
Ken Sweeney
President and Chief Engineer
Advanced Infrastructure Technologies
T
his innovative structural design
allows safe, resilient bridge
construction and represents a
cost-effective alternative to pre-cast
or steel bridge designs.
The AASHTO guide is available in
print form or downloadable online
from the AASHTO bookstore.
Lightweight and highly durable
Advanced Infrastructure Technologies (AIT Bridges) is the supplier
of these longer-lasting, lower maintenance bridges. This bridge design
uses a small volume of fibre-reinforced material to encase concrete,
adding durability to the structure
while providing a permanent protective shell to keep out harmful chemicals and environmental elements.
Lightweight and highly durable,
these composite arches create a
structurally sound, long-lasting arch
bridge which is expected to exceed
the service life of a conventional
bridge.
The product was first used in 2008
by MaineDOT. The 11.60-m span
Royal River Bridge in Auburn, Maine
was named as a finalist in the 2011
ACEC Grand Conceptor Awards
alongside the iconic Hoover Dam
Bypass. There are 14 bridges in service using this advanced material for
the structural members.
This innovative construction technique uses custom-designed hollow
composite arches that are filled with
concrete on-site to serve as the main
structural supports of a bridge. The
customized arches start as a fabric
sleeve, typically 305 or 380 mm
in diameter, which is then formed
into the required arch shape using a
patented resin infusion process. Installation is simple. The lightweight
arches are carried into place, secured
into the new bridge foundation, and
then covered with a composite decking material. Finally, the arches are
filled with concrete using a standard
self-consolidating mix. The structure
is topped with compacted soil and
the roadway can be placed.
AIT Bridges' custom-designed arches
Clear span, natural bottom preserves/improves environment, a smarter alternative to boxes and pipes
42 jec composites magazine / No85 November - December 2013
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013
Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013
Cover
Edito
Point of view: bespoke equipment
Contents
Agenda of Events
COMPANY & BUSINESS In Brief
APPLICATIONS
Large parts
Skateboard
Second life
Truck
Pipe
MARKET Process
FEATURE CONSTRUCTION
Roofing
PFRP house
Sandwich panels
GFRP grid
Gelcoat
Windows
Bridge
RESEARCH & DEVELOPMENT
Cure monitoring
Design
TECHNOLOGY & INNOVATIONS
NDC
Simulation
CBeam
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Cover
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 2
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Edito
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Point of view: bespoke equipment
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 5
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Contents
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 7
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 9
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - COMPANY & BUSINESS In Brief
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 11
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Large parts
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 13
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Skateboard
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 15
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Second life
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 17
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Truck
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 19
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Pipe
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 21
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 22
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - MARKET Process
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 24
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 25
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 26
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 27
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Roofing
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 29
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 30
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - PFRP house
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 32
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Sandwich panels
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 34
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 35
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - GFRP grid
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 37
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Gelcoat
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 39
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Windows
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 41
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Bridge
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 43
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 44
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Cure monitoring
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 46
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 47
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Design
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 49
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 50
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 51
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - NDC
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 53
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Simulation
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 55
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - CBeam
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - Index
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - In the world
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 59
JEC COMPOSITES MAGAZINE - Issue #85 - November/December 2013 - 60
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