nchrp bridge researchnchrp bridge researchctgttp.edu.free.fr/trungweb/tc tk cau 22 tcn 272 - 05/giai...
TRANSCRIPT
![Page 1: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/1.jpg)
NCHRPNCHRP 1
NCHRP Bridge ResearchNCHRP Bridge Research
Report to
AASHTO Highway Subcommitteeon Bridges and Structures
National Cooperative Highway Research ProgramTransportation Research Board
June 2005
![Page 2: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/2.jpg)
NCHRPNCHRP 2
OverviewOverview
NCHRP ProductsProgram DescriptionFY 2006 ProgramActive ProjectsRecent Reports
![Page 3: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/3.jpg)
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)
![Page 4: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/4.jpg)
NCHRPNCHRP 4
Coming NCHRP Bridge ProductsComing NCHRP Bridge Products
NCHRP 12NCHRP 12--5252 –LRFD specifications for the design andconstruction of horizontally curved steel girderbridges.
![Page 5: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/5.jpg)
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.
![Page 6: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/6.jpg)
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
![Page 7: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/7.jpg)
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
![Page 8: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/8.jpg)
NCHRPNCHRP 8
The National AcademiesThe National Academies
National Academy ofSciencesNational Academy ofEngineeringInstitute of Medicine
National Research Council
The Keck CenterThe Keck Center North
![Page 9: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/9.jpg)
NCHRPNCHRP 9
Overview of NCHRP ProcessOverview of NCHRP Process
Program Selection - AASHTOProgram Funding - FHWA/StatesProgram Administration- NCHRP
![Page 10: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/10.jpg)
NCHRPNCHRP 10
Program SelectionProgram SelectionAASHTOAASHTO
Problem StatementsStanding Committee on ResearchStates Ballot - 2/3 must approve project
Project Panel Members
![Page 11: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/11.jpg)
NCHRPNCHRP 11
0
2
4
6
8
10
12
14
16
18
96 97 98 99 00 01 02 03 04 05 06
Program Year
Nom
inee
sp
erP
anel
Federal AgencyState AgencyUniversity
Others
![Page 12: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/12.jpg)
NCHRPNCHRP 12
Program FundingProgram FundingFHWAFHWA
States Voluntary Contributions» AASHTO negotiated agreement with
States» 5-1/2% of SPR funds» FHWA administers funds
![Page 13: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/13.jpg)
NCHRPNCHRP 13
Program AdministrationProgram AdministrationNCHRPNCHRP
Set Up Project PanelsDevelop Project Statements (RFP)Contract with Research AgencyProject Surveillance
![Page 14: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/14.jpg)
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)
![Page 15: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/15.jpg)
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
![Page 16: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/16.jpg)
NCHRPNCHRP 16
NCHRP Bridge FundingNCHRP Bridge Funding
$0
$1
$2
$3
$4
$5
$6
1994
1996
1998
2000
2002
2004
2006
![Page 17: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/17.jpg)
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)
![Page 18: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/18.jpg)
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)
![Page 19: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/19.jpg)
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)
![Page 20: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/20.jpg)
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
![Page 21: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/21.jpg)
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
![Page 22: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/22.jpg)
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
![Page 23: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/23.jpg)
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
![Page 24: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/24.jpg)
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
![Page 25: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/25.jpg)
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.
![Page 26: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/26.jpg)
NCHRPNCHRP 26
46 Projects of Interest
>$21,900,000
Active ProjectsActive Projects
![Page 27: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/27.jpg)
NCHRPNCHRP 27
Recent ReportsRecent Reports
534534 Guidelines for Inspectionand Strength Evaluations ofSuspension Bridge Parallel-WireCables
543543 Effective Slab Width forComposite Steel Bridge Members
![Page 28: NCHRP Bridge ResearchNCHRP Bridge Researchctgttp.edu.free.fr/TRUNGWEB/TC TK Cau 22 TCN 272 - 05/Giai thich... · NCHRP 1 NCHRP Bridge ResearchNCHRP Bridge Research Report to AASHTO](https://reader034.vdocument.in/reader034/viewer/2022051600/5a854dd97f8b9a001c8c3af7/html5/thumbnails/28.jpg)
NCHRPNCHRP 28
Web SitesWeb Sites
NCHRPNCHRP
WWW4.nas.edu/trb/crp.nsfWWW4.nas.edu/trb/crp.nsf
TRBTRB
trb.orgtrb.org