3. Reservoir 1
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Transcript of 3. Reservoir 1
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Concrete Reservoirs(Every Tank is Unique)
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Date Title 2
Garden Home
5th Street Reservoir
Waluga Reservoir #2
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5th Street Lebanon
Date Title 3
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5th Street Lebanon
Date Title 4
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Waluga Reservoir #2
Date Title 5
OBECs OFFICE
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Waluga Reservoir #2
Date Title 6
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Garden Home
Date Title 7
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Garden Home
Date Title 8
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Reservoir Facts
5th StreetType: Prestressed
Height: 45
Diameter: 124
Volume: 4MG
Roof Type: Flat Slab
Seismic: 0.67g
Bid Cost: $1.9M
Waluga #2Type: Prestressed
Height: 36
Diameter: 131
Volume: 3.5MG
Roof Type: Dome
Seismic: 0.98g
Bid Cost: $2.0M
Garden HomeType: Prestressed
Height: 37-5
Diameter: 89-4
Volume: 1.75MG
Roof Type: Flat Slab
Seismic: 0.97g
Bid Cost: ~$1.8M
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Why Prestressed Concrete?
1
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Reservoir Options
Fiberglass
Steel
Concrete
Bolted
Welded
Cast-in-Place
Prestressed
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Bolted Steel
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Welded Steel
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Cast-in-Place Concrete
Date Title 14
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Prestressed Concrete
Date Title 15
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Types of Prestressed TanksPrestressed
Wire Wrapped Post Tensioned
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Types of Prestressed Tanks
Type I Type II Type III Type IV D115
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Advantages of Prestressed
Low Initial Cost* No Coating Requirements Low Maintenance Long Life Good Water Tightness Good Seismic Performance
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Reservoir Type by Size
0
0.5
1
1.5
2
2.5
3
3.5
44+
C
a
p
a
c
i
t
y
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M
G
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Pre-stressed Cost EfficiencyC
a
p
a
c
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M
G
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D/H Ratio
0
2
4
6
8
10
1 1.5 2 2.5 3 3.5 4
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5th Street
4 Million Gallons of Storage Alternatives Study Cost/Maintenance
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WR2
3.5 Million Gallons WR1 - Concrete Cost / Maintenance
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Garden Home
Replacing 2 Steel Tanks Existing Site 1.75 Million Gallons Owner Preference
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Structural Design Considerations
2
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Design Considerations
Structural Considerations Design Criteria Floor/Foundation Roof Type Seismic Detailing Construction Staging
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Non-Structural Design Considerations
3
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Design Considerations
Non-Structural Considerations Tank Mixing Aesthetics Piping Instrumentation Bidding/Schedule Public Involvement
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5th Street Lebanon
4
Site Layout Piping Alternate Bidding
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5th Street Lebanon (Site Layout)
Date Title 29
2MG
New 2MG Tank #2
New 4MGTank
New 2MG Tank #1
New 4MGTank
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5th Street Lebanon (Piping)
Date Title 30
2MG
New 4MGTank
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5th Street Lebanon
Alternative Bidding:D115 vs D110 Type 1
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Waluga Reservoir 2
5
Foundation Roof Type Site Constraints Public Involvement*
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WR2 (Foundation)
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WR2 (Dome Roof)
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WR2 (Site Constraints)
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Garden Home
6
Seismic Detailing Aesthetics Tank Mixing
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Garden Home (Seismic)
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Garden Home (Seismic)
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Garden Home (Seismic)
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Garden Home (Seismic)
Cable Specs
Diameter = 0.6Spacing = 4-ftStrand/bundle = 10
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Garden Home (Seismic)
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Garden Home (Aesthetics)
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Garden Home
Date Title 43
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Garden Home (Tank Mixing)
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Garden Home (Tank Mixing)
Passive vs. Active Mixing
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Conclusions
Strong Partnerships Collaboration leads to Innovation Every tank is unique