The document discusses innovative technologies in bridge construction that enhance efficiency, reduce costs, and improve durability, focusing on fast track construction methods. Key advancements include the use of high-performance and self-consolidating concrete, prefabricated components, and high-speed welding technology, all aimed at minimizing traffic disruption and construction time. The implementation of these technologies not only yields faster project completion but also results in safer and more resilient structures.

1. FAST TRACKTECHNOLOGIES
INBRIDGE CONSTRUCTION
PRESENTED BY
SANDYA RANI. KALVAPALLI
(14BC1A0134)
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2. INTRODUCTION
 The bridge projects described illustrate how existing
structural systems can be developed and original design
revised to save costs.
 This was done without sacrificing durability, while
maintaining the quality and elegance prevalent in
successful bridges
 High construction projects encompass the entire range of
planning, design, management, and construction activities
that comprise highway rehabilitation or reconstruction
projects.
 Reconceptualization of the problem during planning phase,
for example, might lead to alternative designs or
approaches to construction that could yield greater benefits
in terms of reduced delay and disruption that could be
achieved through typical approaches to minimizing
contractor lane occupancy
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3. BENEFITS OF
FAST TRACK
CONSTRUCTION
 Reduced construction time
 Minimum traffic disruption
 Durable structures
 Increased safety by decreasing the time that
drivers and workers are exposed in work zone
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4. INNOVATIVETECHNOLOGIES
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5. INNOVATIVE
TECHNOLOGIES
 It is possible to precast column caps, girders and beams
,decks, complete bridge sub- or super structures,
complete bridge spans ,and complete bridges
 Precast concrete work, both shop cast and site cast,
occurs away from traffic
 High performance concrete (HPC), for example, which
increases both the durability and longevity of bridges, is
currently specified for bridge projects
 In addition, self-consolidating concrete (SCC) mixes are
being promoted to cast deck replacements because of
their high quality and durability and because they
develop strength very quickly, limiting the need to close
areas while structural components cure and develop
strength
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6.  In the future, bridges will be finished in less time than in
the past, and they will last much longer than the current
42-year average
 .HPC mixes are becoming common place because they
result in concrete with low permeability and high
durability that is able to quickly develop high strength.
 Pre-stressed and post-tensioned reinforcement is used
currently in almost in all new bridge projects. Segmental
bridges, either precast or cast-in-place, are economical and
quick to construct.
 The ideal method depends on the span, with spans 0 to 150
feet using cast-in –place segmental methods. When
segmental construction is used as the deck of a cable-
stayed bridge, span lengths can be much longer.
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7. HIGH TRAFFIC
BRIDGE BUILT
IN RECORD
TIME
 Design and detailing of a complex 3-span bridge completed
in 4.5 calendar days (approximately 50 man days)
 Bridge on 60-degree skew with super elevation transition
in two directions with a ridgeline
 Contactor redesign of 42.7-meter (140-foot)span 2 Type IV
to use modified BT54 girders (high-performance concrete-
8,500psi)
 164 HP 12x53 steel piles driven 627 cubic meters (820
cubic yards)of concrete poured. Advances in the use of
accelerated bridge construction and high performance steel
(HPS) for bridges.
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8. HIGHPERFORMANCESTEEL
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9. HIGH
PERFORMANCE
STEEL
 HPS is stronger and tougher than conventional
steel. It also offers greater resistance to cracking
 The use of HPS in bridge construction saves money
,gets projects built faster , and results in bridges
that are more durable and last longer
 HPS has also provided a new horizon for steel
bridges in that it opens the door to using more
innovative system. Although the HPS material is
slightly more expensive than conventional steel, a
designer can use less and therefore save overall on
the material cost of the project
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10. SELFCONSOLIDATINGCONCRETE
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11. SELF
CONSOLIDATING
CONCTETE
 The fabricator built footers, abutments, and wing walls off-site
using self-consolidating concrete (SCC), which sped up
fabrication and reduced costs.
 SCC does not require a vibrator, one person worked on each
pour rather than the 3to 5 needed for conventional concrete
 Placement of vertical sections took less than a day
 Each abutment and wing wall section took three quarters of
an hour to grout. The backfill was a well-graded crushed rock
mixture compacted to 98% .The high quality backfill shorten
this task to about one day
 This method of construction substantially decreased the
project duration, cut traffic in and out of the project site by
half , reduced the chances for accidents and eliminated dust,
dirt and noise that the surrounding community otherwise
would have had to endure.
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12. PREFABRICATEDDECKPANELS
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13. PREFABRICATED
DECK PANELS
 Sandwich plate system (SPS) is a way to pre fabricated steel
decks for bridges to reduce construction time
 2-inch thick compact polyurethane elastomer core sits
between two steel 1/4-inch-thick steel plates, forming a
sandwich-like deck structure
 Elastomer is injected as a two part liquid into closed cavities
formed by the steel faceplates and perimeter steel bars
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14.  SPS deck is stiffer with reduced deck
curvatures and small panel deflections.
 Supports lighter sub-structure and
improves resistance to earth quakes
 The elastomer transfers shear from one
steel plate to the other, eliminating the
need for fatigue –prone steel-to-steel
welds
 They can assemble deck units with welds
and slip resistant bolted connections for
dynamically loaded structures
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15. PREFABRICATION
ADVANTAGES
 New ways to prefabricate superstructures offer opportunities
for bridge designers and contractors to significantly reduce
construction time
 improve worker safety, lessen environmental impact, and cut
costs
 Prefabrication lessens the time that heavy equipment must
spend on site, reducing adverse effects on the environment
 Using prefabricated bridge elements and systems relieves
constructability pressures.
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16. HIGHSPEEDWELDINGTECHNOLOGY
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17. HIGHSPEEDWELDINGTECHNOLOGY
 High-speed laser welding technology is
revolutionizing lightweight metal structures.
 Recently developed to modernize U.S. Navy
shipbuilding, laser-fabricated components will find
their way into bridge construction where high-
strength, lightweight, and corrosion resistant
characteristics are a premium.
 Engineered applications include hollow-core steel
Sandwich panel systems for re-decking load limited
bridges and rapid-deployment superstructure
replacements
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18. GSSI’BRIDGESCAN
GEOPHYSICAL SURVEY SYSTEM INC
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19. GSSI’S
BRIDGE SCAN
SYSTEM
 GSSI’s Bridge scan system performs non destructive bridge
deck condition assessment, and provides concrete cover
depth on new construction.
 Using ground penetrating radar, the system produces
quantifiable data to accurately estimate repair costs with
demonstrated correlation with conventional acoustical
techniques.
 Results are available as Color-coded contour maps easily
identifying areas of deterioration.
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20. HYBRID
SUPERSTRUCTURE
BENIFITS
 Prefabricated
 High strength
 Low weight
 High Resistance to corrosion
 Low Life-Cycle Costs
 Versatility
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21.  HYBRID BRIDGE
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22. CONCLUSION
 Identify innovative, time-reducing design concepts and
construction technologies, including design configurations,
materials, construction equipment's, design and construction
sequences, repair methods, automated systems, modularization
and preassembly.
 Examine the effects on project performance of various
approaches to traffic control measures (e.g., complete closure
with short-term detour vs. partial closure with longer duration
)
 Develop mechanisms for evaluating project site operations
plans, addressing such factors as field organization structures;
optimal work calendar and day ;number of concurrent work
locations; number, size, and makeup of crews; and equipment
selection.
 Benchmark schedule performance for highway construction
projects, taking account of type and size of project and
associated causal and enabling factors. Information on effects of
user delays should be included.
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23. REFERENCE’S
 Deitz, D.H. (1998), “GFRP Reinforced Concrete Bridge
Decks,” Ph.D. Thesis, University of Kentucky, Lexington,
USA.
 Construction Industry Institute, Concepts and Methods of
Schedule Compression. Publication. 6-7, Austin, Texas,
November 1998.
 EI-Diraby, T.E., System for Evaluating Bridge Construction
Plans. Dissertation, University of Texas at Austin, May 1997.
 Carr, R.I.1997.Engineering and Construction Management:
Leadership and Opportunity, ASCE Journal of Construction
Management, September.pp.292-296.
 Construction Industry Institute, Concepts and Methods of
Schedule Compression .Publication. 6-7, Austin, Texas,
November 1988
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24. THANK YOU
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