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NCHRPNCHRP 1
NCHRP Bridge ResearchNCHRP Bridge Research
Report to
AASHTO Highway Subcommitteeon Bridges and Structures
National Cooperative Highway Research ProgramTransportation Research Board
June 2005
NCHRPNCHRP 2
OverviewOverview
NCHRP ProductsProgram DescriptionFY 2006 ProgramActive ProjectsRecent Reports
NCHRPNCHRP 3
Application of NCHRP BridgeApplication of NCHRP BridgeProductsProducts
2005 Agenda2005 Agenda4 Ballot Items reference 3 NCHRP Projectsor Reports
NCHRP Projects 12-63, 10-38 (Report 469), &24-17 (Report 507)
NCHRPNCHRP 4
Coming NCHRP Bridge ProductsComing NCHRP Bridge Products
NCHRP 12NCHRP 12--5252 –LRFD specifications for the design andconstruction of horizontally curved steel girderbridges.
NCHRPNCHRP 5
Coming NCHRP Bridge ProductsComing NCHRP Bridge Products
NCHRP 12NCHRP 12--5858 (Report 543)(Report 543)Recommended effective slab width ofcomposite steel bridge members.
NCHRP 12NCHRP 12--6161Simplified shear design procedures forconcrete members.
NCHRPNCHRP 6
Coming NCHRP Bridge ProductsComing NCHRP Bridge Products
NCHRP 12NCHRP 12--6262Recommended LRFD live-load distribution-factor design equationsNCHRP 12NCHRP 12--6363Recommend revisions to the legal loads forposting
NCHRPNCHRP 7
Coming NCHRP Bridge ProductsComing NCHRP Bridge Products
NCHRP 12NCHRP 12--5656Extension of LRFD Specifications to 18 ksi forshearNCHRP 12NCHRP 12--6060Extension of LRFD Specifications to 18 ksi fortransfer, development, and splice lengthNCHRP 12NCHRP 12--6464Extension of LRFD Specifications to 18 ksi forflexure and compression
NCHRPNCHRP 8
The National AcademiesThe National Academies
National Academy ofSciencesNational Academy ofEngineeringInstitute of Medicine
National Research Council
The Keck CenterThe Keck Center North
NCHRPNCHRP 9
Overview of NCHRP ProcessOverview of NCHRP Process
Program Selection - AASHTOProgram Funding - FHWA/StatesProgram Administration- NCHRP
NCHRPNCHRP 10
Program SelectionProgram SelectionAASHTOAASHTO
Problem StatementsStanding Committee on ResearchStates Ballot - 2/3 must approve project
Project Panel Members
NCHRPNCHRP 11
0
2
4
6
8
10
12
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96 97 98 99 00 01 02 03 04 05 06
Program Year
Nom
inee
sp
erP
anel
Federal AgencyState AgencyUniversity
Others
NCHRPNCHRP 12
Program FundingProgram FundingFHWAFHWA
States Voluntary Contributions» AASHTO negotiated agreement with
States» 5-1/2% of SPR funds» FHWA administers funds
NCHRPNCHRP 13
Program AdministrationProgram AdministrationNCHRPNCHRP
Set Up Project PanelsDevelop Project Statements (RFP)Contract with Research AgencyProject Surveillance
NCHRPNCHRP 14
FY 2006 ProgramFY 2006 Program
FY 2004 $25,311,000(+ $ 4,600,000 Unfunded Contingencies)
FY 2005 $27,525,000(All Contingencies were funded)
FY 2006FY 2006 $27,615,000$27,615,000(+ $ 4,900,000 Unfunded Contingencies)
NCHRPNCHRP 15
FY 2006 ProgramFY 2006 Program
Continuation Projects– 21 Projects $ 10,275,000– 0 Bridge Related
New Projects– 38 Total $17,340,000– 8 Bridge Interest $ 4,800,000
NCHRPNCHRP 16
NCHRP Bridge FundingNCHRP Bridge Funding
$0
$1
$2
$3
$4
$5
$6
1994
1996
1998
2000
2002
2004
2006
NCHRPNCHRP 17
FY 2006 ProgramFY 2006 ProgramNew ProjectsNew Projects
•• 1010--7070 Fatigue Testing for CantileverTraffic Signal and Sign StructureConnection Details $800,000 (Your #1Priority)
•• 1010--7171 Evaluation of CIP ReinforcedJoints for Full-Depth Precast ConcreteBridge Decks $750,000 (#4 Priority ofEvaluation Panel)
NCHRPNCHRP 18
FY 2006 ProgramFY 2006 ProgramNew ProjectsNew Projects
•• 1010--7272 Bridge Deck TestingSpecification $500,000 (Your #3 Priority)
•• 1212--7575 Behavior and Design ofConcrete Girders Strengthened in Shearwith CFRP Laminates $500,000 (Your #6Priority)
NCHRPNCHRP 19
FY 2006 ProgramFY 2006 ProgramNew ProjectsNew Projects
•• 1212--7676 Assessment of Truck Traffic onHighway Bridges $400,000 (Medium Priority)
•• 2424--3030 Improving the Lateral Capacityof Highway Bridge Foundations in WeakSoils $500,000 (Your #4Priority)
NCHRPNCHRP 20
FY 2006 ProgramFY 2006 ProgramNew ProjectsNew Projects
•• Your #2 PriorityYour #2 Priority Guidelines and Detailsfor Converting Jointed to JointlessBridges
•• Your #5 Priority was a 2005Your #5 Priority was a 2005Contingency initiated as 12Contingency initiated as 12--7474Development of a Precast Bent CapSystem for Seismic Regions
NCHRPNCHRP 21
FY 2006 ProgramFY 2006 ProgramNew ProjectsNew Projects
•• 2424--2828 Reliability of Metal Loss &Service-Life Estimates for Metal-Tensioned Systems in GeotechnicalApplications $600,000
•• 2424--2929 Effects of Fractured orDegradable Rock on Pier Scour atBridges $750,000
NCHRPNCHRP 22
2020--07 Research for the07 Research for theAASHTO Standing CommitteeAASHTO Standing Committee
on Highwayson Highways$1,000,000 FY 2006 FundingAASHTO Highway Committee or
Subcommittees of SCOH can requestTask funding
20-07 panel selects tasks biannually Informally appointed Task panels
NCHRPNCHRP 23
2020--05 Synthesis05 Synthesis
Managed Within TRB, but outsideNCHRP
$1,200,000 FY 2006 FundsTopics selected by 20-05 panel Informally appointed topic panels
NCHRPNCHRP 24
Grand ChallengesGrand Challenges1. EXTENDING SERVICE LIFE2. OPTIMIZING STRUCTURAL SYSTEMS3. ACCELERATING BRIDGE
CONSTRUCTION4. ADVANCING THE AASHTO
SPECIFICATIONS5. MONITORING BRIDGE CONDITION6. CONTRIBUTING TO NATIONAL POLICY7. MANAGING KNOWLEDGE
NCHRPNCHRP 25
The Riemann HypothesisThe Riemann Hypothesis
The German mathematician G.F.B.Riemann (1826-1866) observed that thefrequency of prime numbers is related tothe behavior of the function
ζ(s) = 1 + 1/2s + 1/3s + 1/4s + ...called the Riemann Zeta function.The Riemann hypothesis asserts that allnontrivial solutions of the equation
ζ(s) = 0have real part equal to ½.
NCHRPNCHRP 26
46 Projects of Interest
>$21,900,000
Active ProjectsActive Projects
NCHRPNCHRP 27
Recent ReportsRecent Reports
534534 Guidelines for Inspectionand Strength Evaluations ofSuspension Bridge Parallel-WireCables
543543 Effective Slab Width forComposite Steel Bridge Members
NCHRPNCHRP 28
Web SitesWeb Sites
NCHRPNCHRP
WWW4.nas.edu/trb/crp.nsfWWW4.nas.edu/trb/crp.nsf
TRBTRB
trb.orgtrb.org