CIVE 527 Tutorial Assignment 1
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CIVE 527
INFRASTRUCTURE;
RENOVATION AND
PRESERVATION
TUTORIAL: ASSIGNMENT 1
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CONDITION ASSESSMENT
Condition Assessment: An examination of a
structure for the purpose of identifying and
defining areas of distress
But how exactly do we go about doing
this?!
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THE BASICS
For More Details, Consult “Condition Assessment”
module of CIVE 527 course notes
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PRELIMINARY ASSESSMENT &
EVALUATION
• Before you can make informed decisions, you require
CONTEXT
• Need as much history as you can get your hands on!
• Review of previous documents/literature available
• History of intervention/maintenance
• Design plans
• Drawings
• Design criteria,
• Soil Investigations
• as-built drawing
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PUBLIC INFRASTRUCTURE
OWNERSHIP
• Ownership of infrastructure depends on how exactly it is used and who is using it (Jurisdiction)
• FEDERAL: Société Les Ponts Jacques Cartier et Champlain Inc.
• PROVINCIAL
• Ministère des Transports du Québec National Highways(Primary)
• Regional Highways: (Secondary)
• MUNICIPAL
• Divided between the 19 boroughs and the municipal council
• ARTERIES: City of Montreal
• Local Roads: Borough
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INVENTORY
• Majority of Infrastructure built in the ‘60s and ‘70s
• 40+ years of potential deterioration across almost 30,000 km of roadworks
• CITY OF MONTREAL in particular responsible for:
• 27 bridges*
• 41 footbridges
• 21 noise barrier walls
• 14 tunnels (vehicles and pedestrian)
• 213 retaining walls*
• 15 snow deposits
• 22 other types of structures (stairs, culverts, etc)
*LIST OF ONGOING WORK FOUND AT*
http://carte.quebec511.gouv.qc.ca/en/Default.aspx?idreg=6
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Distribution of deterioration ratings for the City of Montreal’s transportationInfrastructure, 2014.
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INSPECTION REPORTS
• City of Montreal uses qualitative criteria to determine
severity of rating
• Structural and non-structural components evaluated
based on visible signs of deterioration
• Total “deterioration rating” is summed up over all
observed issues and a single score is given to the
infrastructure
• This score is used to compare and prioritise intervention
& monitoring across entire inventory
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GLOBAL CRITERIA USED
Deterioration
RatingState General Characteristics
0 to 8 Good
Materials: None of the elements show important signs
of deterioration
Structural behaviour: The majority of elements are
functional
8 to 25Deteriorated
Materials: A small number of elements show signs of
deterioration
Structural behaviour: A small number of elements are
partially functional
25 to 40 Mediocre
Materials: Elements show signs of deterioration
Structural behaviour: Some of the structural elements
are partially functional
40 to 80 Deficient
Materials: A few of the elements are deficient
Structural behaviour: A few of the structural elements
are non-functional
80 + Critical
Materials: Many of the elements are deficient
Structural behaviour: A few of the structural elements
are non-functional (short term intervention if necessary,
complete or partial closing)
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INSPECTION REPORT
DETAILS
• All infrastructure is composed of a combination of different elements, both structural and non-structural
• Priorities- Which elements are the worst? Scale of 1 to 6
• Damage rating (E)
• A: Isolated Damage (One or two spots)
• B: Repetitive Damage (In several places)
• C: Generalized
• Material Rating (M)
• Behavioral Defects (C)
• 1- Not performing as designed
• 6- Perfect functioning
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VISUAL INSPECTION
• Most important part of preliminary assessment
• Structural Modification
o Previous Repair work visible?
• Material Deterioration
• Structural Member degradation
• Missing cover, braces missing, etc
• Foundation or settlement problems
• Cracking Staining, Crumbling
• Missing Members?
• Obvious Damage
• TAKE PICTURES!!!
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ASSIGNMENT 1 RUBRIC
1. Description of building /2
2. Description of loading and performance criteria considered /2
3. Description of preliminary evaluation process /2
4. Discussion of preliminary findings /2
5. Recommendations concerning the need for particular actions /2
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DESCRIPTION OF
BUILDING
• Who owns it?
• How is it used/what function does it serve
• Where is it located?
• Whose jurisdiction does it fall under (Federal, provincial,
municipal, borough?)
• What is the building composed of?
• Identify ALL major & minor structural components
• MAJOR- Beams, slabs, columns, retaining walls,
foundations,
• Parapets, sidewalks, drainage systems…
• Identify materials used in construction
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DESCRIPTION OF
PERFORMANCE AND LOADING
CRITERIA
• How is this structure used (High priority or low priority)
• Heavy Trucks
• Weight Restrictions?
• Pedestrian use?
• Lane restrictions?
• Thoroughfare vs lightly used structure
• What kinds of conditions is the structure exposed to?
• Near industrial output (acid rains?)
• Car exhaust (CO2)?
• De-Icing salts (Chlorides)
• Extreme water runoff (Erosion/ Freeze Thaw)?
• Vandalism/Accidents? (Structural Defects)
• Fires?
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DESCRIPTION OF
PRELIMINARY
EVALUATION PROCESS
What steps did your group take while carrying out
the preliminary evaluation process?
• Prior records consulted?
• Site inspection?
• Other investigation means?
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DISCUSSION OF
PRELIMINARY FINDINGS
What are your first impressions of the structure in question?
• General condition assessment?
• Any particular elements or components that stand out?
• Concerning or laudable observations?
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ASSIGNMENT 1 DUE DATE
• October 8th @ 6 PM
• Submission via MyCourses
• 1 Submission per group
• Word Count < 400 (10-15 PowerPoint Slides)
• PDF or PPT file