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CONDITION APPRAISAL ANDREMEDIAL TREATMENT
CIRIA Research Project RP692
MASONRY AND BRICK ARCH BRIDGES:
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Dr. John Perry (Project Director)
Mr. Leo McKibbins (Project Manager)Dr. Carlos Sicilia (Co-author)
Professor Clive Melbourne (Co-author)
Mr. Sion !al"er (Co-author)
CONDITION APPRAISAL AND
REMEDIAL TREATMENT
MASONRY AND BRICK ARCH BRIDGES:
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The problem:The problem:
Masonry arch bridge construction long abandoned in the UKMasonry arch bridge construction long abandoned in the UK UK transport network dependent on masonry and brick archesUK transport network dependent on masonry and brick arches
Subjected to ever increasing traffic levels, speeds and loadsSubjected to ever increasing traffic levels, speeds and loads
re!uently "##$ years oldre!uently "##$ years old
Some are damaged or have simply deteriorated graduallySome are damaged or have simply deteriorated gradually
NEED FOR MAINTENANCE, REPAIR AND STRENGTHENING
NEED FOR BEST PRACTICE GUIDANCE
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UK %nfrastructureUK %nfrastructure
Key elements of UK transport infrastructure:Key elements of UK transport infrastructure:
&etwork 'ail&etwork 'ail
(ondon Underground (imited(ondon Underground (imited
)ritish *aterways)ritish *aterways
+ighways gency+ighways gency
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)ritish *aterways)ritish *aterways
canals circa "-##.scanals circa "-##.s
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&etwork 'ail&etwork 'ail
railways circa "-/#.srailways circa "-/#.s
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(ondon(ondon
UndergroundUnderground
underground circaunderground circa
"0##.s"0##.s
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+ighways gency+ighways gency
motorways and trunkmotorways and trunk
roads circa "01#.sroads circa "01#.s
onwardsonwards
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canals circa "-##.scanals circa "-##.s
railways circa "-/#.srailways circa "-/#.s
underground circa "0##.sunderground circa "0##.s
motorways and trunk roadsmotorways and trunk roads
circa "01#.s onwardscirca "01#.s onwards
UK infrastructureUK infrastructure
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Magnitude of the problem:Magnitude of the problem:
Masonry and brick arches comprise:Masonry and brick arches comprise:
2#3 of UK bridge stock 4largest single group52#3 of UK bridge stock 4largest single group5
2#,### arch highway bridges2#,### arch highway bridges
66,### railway arch spans66,### railway arch spans
7ery high proportion of )ritish *aterways8 assets7ery high proportion of )ritish *aterways8 assets
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To presentTo present best practice guidancebest practice guidance
To facilitate knowledge sharingTo facilitate knowledge sharing
To provide an enabling documentTo provide an enabling document
To have national applicationTo have national application
To recommend maintenance strategiesTo recommend maintenance strategies
representing best value for moneyrepresenting best value for money
To provide impartial assessment and adviceTo provide impartial assessment and advice
9urpose of the 9roject9urpose of the 9roject
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Main User roupsMain User roups
The report should provide guidance for:The report should provide guidance for:
;lients 4asset owners and operators5 in railways,;lients 4asset owners and operators5 in railways,
road and canals infrastructuresroad and canals infrastructures
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pproachpproach
sset Managementsset Management StructuralStructural )ehaviour)ehaviourof masonry and brick archof masonry and brick arch
bridgesbridges
(oss of bridge performance(oss of bridge performance
;ondition appraisal and assessment of capacity;ondition appraisal and assessment of capacity
9reventative, remedial and strengthening measures9reventative, remedial and strengthening measures
MonitoringMonitoring
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MethodMethod
(iterature review(iterature review
;onsultation;onsultation
;ase histories;ase histories
ssessment of informationssessment of information
;onclusions and reporting;onclusions and reporting
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The ;onsultation 9rocessThe ;onsultation 9rocess
%nvolve individuals and organisations with e=perience%nvolve individuals and organisations with e=perienceand e=pertise in brick and masonry arch bridges>and e=pertise in brick and masonry arch bridges>
;ontribution of knowledge, user8s perspective, views on;ontribution of knowledge, user8s perspective, views on
content and material for inclusion 4e>g> case?studies5>content and material for inclusion 4e>g> case?studies5>
;onsultation *orkshop;onsultation *orkshop
@uestionnaires 4available on ;%'% website5@uestionnaires 4available on ;%'% website5
Angoing consultation 4'910B Steering roup,Angoing consultation 4'910B Steering roup,correspondence and interviews with individuals5correspondence and interviews with individuals5
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sset Managementsset Management
*hat are the performance re!uirements for masonry and*hat are the performance re!uirements for masonry andbrick arch bridgesDbrick arch bridgesD
re they likely to change in futureDre they likely to change in futureD
+ow are masonry and brick arch bridge assets currently+ow are masonry and brick arch bridge assets currently
managedDmanagedD
*hat are the main issues of concern for ownersEmanagers*hat are the main issues of concern for ownersEmanagers
of these structuresDof these structuresD
*hat are the key issues to be dealt with in the reportD*hat are the key issues to be dealt with in the reportD
*hat guidance should be given as to best practice in asset*hat guidance should be given as to best practice in asset
managementDmanagementD
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;ondition ppraisal and ssessment;ondition ppraisal and ssessment
+ow is bridge condition currently appraisedD+ow is bridge condition currently appraisedD
*hat are the re!uirements for routine and special*hat are the re!uirements for routine and special
investigationsDinvestigationsD
*hat are the causes of loss of performance and how can*hat are the causes of loss of performance and how can
their effects be assessedDtheir effects be assessedD
*hat are the principal structural assessment methodsD*hat are the principal structural assessment methodsD
*hat are the main considerations in their useD*hat are the main considerations in their useD
*hat key issues should be considered in the reportD*hat key issues should be considered in the reportD
*hat guidance should be given as to best practiceD*hat guidance should be given as to best practiceD
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Maintenance and 'epairMaintenance and 'epair
*hat are the principal factors in the selection and design*hat are the principal factors in the selection and design
of remedial worksDof remedial worksD
+ow can future maintenance re!uirements best be+ow can future maintenance re!uirements best be
assessedDassessedD *hich strategies and techni!ues have proven effective,*hich strategies and techni!ues have proven effective,
and which ineffective, in the pastDand which ineffective, in the pastD
*hat key issues should be addressed in this reportD*hat key issues should be addressed in this reportD
*hat guidance should be given as to best practice in this*hat guidance should be given as to best practice in this
areaDareaD
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The utureThe uture
*hat is the outlook for masonry and brick arch bridges in*hat is the outlook for masonry and brick arch bridges inthe futureDthe futureD
*hat areas would benefit from improved knowledge and*hat areas would benefit from improved knowledge and
e=perienceDe=perienceD
re there any promising new developments in the areasre there any promising new developments in the areas
discussedDdiscussedD
*hat lessons have been learned from our e=perience with*hat lessons have been learned from our e=perience with
these structures to dateDthese structures to dateD +ow can we best ensure the long?term serviceability of+ow can we best ensure the long?term serviceability of
these bridges as part of our transport infrastructureDthese bridges as part of our transport infrastructureD
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9roducing the report:9roducing the report:
what happens nowDwhat happens nowD
Angoing consultation processAngoing consultation process
%ssue and return of @uestionnaires%ssue and return of @uestionnaires
Firect consultation via correspondence andEorFirect consultation via correspondence andEor
interviewsinterviews
ll contributions gratefully receivedll contributions gratefully received
)enefit of advice, knowledge, e=perience)enefit of advice, knowledge, e=perience
;ase?studies illustrating good or poor practice;ase?studies illustrating good or poor practice
9hotographs, diagrams, illustrations9hotographs, diagrams, illustrations
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;losing 9oints;losing 9oints
Thank you for your contribution todayGThank you for your contribution todayG
9lease visit the ;%'% website and complete and9lease visit the ;%'% website and complete andreturn a @uestionnairereturn a @uestionnaire
ny further contributions to the report, ideas orny further contributions to the report, ideas ordiscussion of its content, should be directed todiscussion of its content, should be directed to(eo McKibbins 4Mott MacFonald5(eo McKibbins 4Mott MacFonald5