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Transcript of PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design...
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PLANNING AND DESIGN PARAMETERSBRIDGE STRUCTURES…
Engr. Ericson MammagFeasibility Study Preparation
CHARM2 Project
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Roads
Bridges
And Culverts
Potable Water System
Communal Irrigation Project
Small Water Impounding Project
General Design Concept X X X X X
Alignment Design – Horizontal and Vertical
X
Hydrology and Drainage X X X X X
Geology and Hydrogeology
O
X
X
O
X
Geotechnical and Foundation Design
X
X
O
X
X
Hydraulic Design O X X X X
Structural Engineering O X O O X
Quantities and Cost X X X X X
Implementation Schedule X X X X X
Environmental Concerns O O O X X
Institutional Requirements O O X X X
Electrical and/or Mechanical Aspects
O
O
O
O
X
X – Critical/essential element of review required O - Necessary but may not be essential
KEY ELEMENTS IN RURAL INFRA Planning & Design
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BRIDGES
• Elements of Bridge Structure
• Bridge and Culverts
• Bridge Nomenclature
• Classification of Bridges by Materials
• Classification of Bridges by Structural
System
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Elements of
Bridge Structure
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BRIDGES
• Width of waterway
and sidewalk
• Clearances
• Railings, Signages
and Safety Devices
• Bridge Location
• Waterways
• Site Data
• Hydrologic Analysis
• Hydraulic Analysis
• Pier Spacing,
Orientation and Type
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Bridge Basic Components
ABUTMENT (part of the substructure)
PIER (part of the substructure)
SUPERSTRUCTURE
DECK
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maximum flood ws level
river cross-section
adjusted flood ws level
bridge girder
bridge
approachbridge
approachclearance, 1.0 m or 1.5 m
original river cross-sectionriver cross-section, general scour
local scour; around
bridge piers
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maximum flood ws level
river cross-section
adjusted flood ws level
bridge girder
bridge
approachbridge
approachclearance, 1.0 m or 1.5 m
original river cross-sectionriver cross-section, general scour
local scour; around
bridge piers
SUPERSTRUCTURE
SUBSTRUCTURE
ABUTMENTPIER
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MS 13.5MS 18
27 KN36 KN
108 KN144 KN
108 KN144 KN
V4.27 m
0.4 W
0.4 W0.4 W0.1 W
0.4 W0.1 W
V = VARIABLE SPACING - 4.20m TO 9.0m INCLUSIVE. SPACING TO BE USED IS THAT WHICH PRODUCES MAXIMUM
STRESSES. CLEARANCE AND
LOAD LANE WIDTH
3.00 m
CURB
1.80 m 0.60 m0.60 m
STANDARD MS TRUCK
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HEIGHT /
SPAN10 20 30 400 50
SPAN LENGTH (M)TYPE
1.5 10L/20
1. RC - SLAB
6 13L/20
2. RC - HOLLOW SLAB
10 20L/15
3. RC - T-BEAM
L/20
30 40
9. SIMPLE BOX GIRDER
20 45
L/17.58. PC T-BEAM (Post)
L/1410 21
4. PC HOLLOW (Pretension)
6 13L/15
5. PC I-BEAM (Pretension)
10 21L/15
6. PC T-BEAM (Pretension)
20 35L/16
7. PC I-BEAM (Post)
APPLICABLE TYPES OF CONCRETE DECK
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L/20
6 13
2. STEEL I-BEAM (Comp.)
L/15
15 40
3. SIMPLE PLATE GIRDER
L/14
25 65
4. CONTINUOUS PLATE GIRDER
L/15
30 60
6. SIMPLE BOX GIRDER
L/16
40 65
7. CONTINUOUS COMP. GIRDER
50 100
L/17.58. CONTINUOUS BOX GIRDER
L/20
50 100
9. SIMPLE TRUSS
0L/20
101. STEEL I-BEAM (Non Comp.)
L/15
20 50
5. SIMPLE COMP. GIRDER
TYPE HEIGHT
/ SPAN10 20 30 40 50 60 70 80 90
SPAN LENGTH (M)
0 100
APPLICABLE TYPES OF STEEL DECK
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Abutment – a substructure which supports the end of a
single span or extreme end of a multi-span
superstructure, and which usually retains or supports
bridge approach embankments/fills.
Open or spill-through abutment
Close abutment
Wingwall (of sufficient length to retain roadway embankment to the
required extent and to provide erosion protection)
Bridge Sub-structure
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Bridge Sub-structure
Abutment types• On pile bent (RC Flat slab, RCDG or RCBG and when the pile exposure
above the natural ground is not more than 2 meters.
• On two-columns (spill-thru type – unstable river banks, fill at approach is
more than three meters high, or when foundation is of the spread footing
type)
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Abutment
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APPLICABLE TYPE OF ABUTMENT
3
ABUTMENT - 1 DIAPHRAGM TYPE
4
GRAVITY SEAT TYPEABUTMENT - 2
TYPE
0 10 20 30
HEIGHT ( m ) REMARKS
10RETAINING WALL SEAT TYPEABUTMENT - 7
15
SEMI GRAVITY SEAT TYPEABUTMENT - 3
4 6
10BUTTRESSED SEAT TYPEABUTMENT - 5
15
10 20
BOX SEAT TYPEABUTMENT - 6
10
INVERSE T SEAT TYPEABUTMENT - 4
6
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PIERS – transmit the load of the superstructure tothe foundation material and provide intermediatesupports between abutments
TYPES OF PIERS piers on solid shaft
piers with two (2) columns
piers with single column (T-bent)
piers on pile bent (for short-span bridges; maximum height of pier bentshall be 4.00 meters from the river bed to the top of the bridge seat; forgreater heights, piers on two columns should be used)
Bridge Sub-structure
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0 15
PIER - 1 COLUMN TYPE
155
PIER - 2 RIGID FRAME TYPE (1-STOREY)
15 25
PIER - 3 RIGID FRAME TYPE (2-STOREY)
10 30
PIER - 4 WALL TYPE
25 40PIER - 5 WALL TYPE (1-SECTION)
TYPE
0 10 20 30 40
HEIGHT ( m ) REMARKS
0 4H
PILE BENTPIER - 0
APPLICABLE TYPES OF PIER
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Bridge Sub-structure FOUNDATIONS
The type of foundation to be used are dictated by:
a) height of superstructure and;
b) characteristic of the foundation soil at the bridge site.
Piling shall be considered when footings
cannot, at a reasonable expense, be
founded on rock or other solid foundation
material. When erosion and excessive
scouring is expected in the spread
footings, piles should be used as
protection against scour.
pier
footing
general scour
local scour
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Local Scour Due to Streamflow
Behavior in Deep Water
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Bridge Sub-structure PILE FOUNDATIONS
Types of Piles• Timber
• Concrete Piles (pre-cast)
• Concrete Piles (cast-in-
place)
• Steel Piles (H-piles, tubular
piles)
• Composite concrete piles
• Prestressed piles
Penetration depths (General
requirements)
Three (3.0) meters or 10 ft in hard
cohesive or dense granular
material
Six (6.0) meters or 20 feet in soft
cohesive or loose granular
material
Unless refusal is encountered,
one-third (1/3) of the pile length
should be embedded.
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0-
10F-1 SPREAD FOUNDATION
0.5 - 0.8
20 60
F-4 STEEL PIPE PILE
1.0 - 1.510 30
F-6 EARTH AUGER
TYPE APPLICABLE
DIAMETER
(m)10 20 30 40 50 60 70 80 90
DEPTH (m)
0 100
0.35 - 0.5
12 40
F-3 PC PILE
30
1.0 - 1.2
10 30
F-5 CAST IN PLACE W/ CASING
40
1.0 - 1.225 60
F-7 REVERSE CIRCULATION DRILL
90
0.3 - 0.5
6F-2 RC PILE
2515
APPLICABLE TYPES OF FOUNDATION
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Bridges – DATA REQUIREMENTS
Field Survey Information• Reconnaissance Survey
• Preliminary and Topographic
Survey
• Final Location Survey
Traffic Data• Traffic Count/Survey
• Loadometer
Sub-surface Data• Borings
• Samplings
Hydrologic/Hydraulic Data• Low Flow
• Flood Flow
• Sediment Charge
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Bridges – DATA REQUIREMENTS
Loads• Dead Load
• Live Load
• Impact or dynamic effect of live load
• Wind load
• Seismic loading
• Thermal stresses (crack control for structures)
• Hydraulic stresses (on sub-structures/piles)
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Typical Design Values
ANGLES OF REPOSE
Earth, Loam
Dry Sand
Moist Sand
Wet Sand
Compact Earth
Gravel
Cinders
Coke
30 to 40
25 to 40
30 to 45
Angle
(degrees)
30 to 45
25 to 35
30 to 45
15 to 30
35 to 40
MATERIAL
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Typical Design Values
TYPICAL VALUES - Bearing Capacities
MATERIAL
(kPa) (kip/ft2) (kPa) (kip/ft2)
Alluvial Soils 47.88 1.00 95.76 2.00
Clays 95.76 2.00 383.04 8.00
Sand, confined 95.76 2.00 383.04 8.00
Gravel 191.52 4.00 383.04 8.00
Cemented Sand and Gravel 478.80 10.00 957.60 20.00
Rock 478.80 10.00
Minimum Value Maximum Value
Safe Bearing Capacity
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BRIDGE BEARINGS (metal type)
Rotation
Motion
Bearing
H
V
Transmit Superstructure Loads
Check for bent or loose anchor bolts
C.L. Slotted Hole
Longitudinal Movement
Check sliding surface for corrosion and freedom of movement.
Also, check for complete contact.
C.L. Anchor Bolt/Masonry PL
Masonry PL
Sole PL
Sliding Plate Bearing Checklist Items
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BRIDGE BEARINGS (elastomeric type)
Check for excessive bulging, splitting or
tearing
Longitudinal Movement
Check for Uniform
Thickness
Bearing Seat
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• Straight reach of the river
• Steady river flow without serious whirls and cross currents
• Narrowest possible channel with permanent banks; banks
high enough to contain expected maximum flood flows
• Rock or hard strata, resistant to erosion close to the river
bed
• Economical and practicable approaches (sufficient sight
distance, no difficult curves, free from natural obstacles,
easy-to-acquire right-of-way)
• Absence or minimal river diversion works or care-of-water
during construction
• Minimal river training works
Bridge Locations
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Bridge Geometrics
Alignment
Normal, perpendicular to the banks of the waterway
Skewed, having an angle of less than 90 degrees
from the bank of the river or creek
Span of Bridges
Odd number of spans to avoid pier at the center of
river or creek
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No. of Bridge Girders – No. of Lanes
No. of Lanes Minimum Width of Roadway
Minimum no. of Girders
1 lane 4.0 meters 3 girders
2 lanes 6.70 meters 4 girders (rural)
2 lanes 7.30 meters 4 girders (urban)
More than 2 lanes variable Not less than 6 girders
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Length of Bridge
Top of Roadway
Bottom of Girder
Maximum Flood Level
Ordinary Flood Level
TOTAL LENGTH OF BRIDGE REQUIRED
FACE OF BACKWALL
BACKWALLBACKWALL
Clearance
1.5 m for streams
with debris
1.0 m for streams
without debris
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Type of Bridges
Materials UsedTimber Bridge
Concrete – reinforced
concrete, pre-stressed
concrete
Steel Bridge
UsageTemporary
Permanent
System of Design
Simple spans
Continuous spans
Cantilever span
Suspension Bridge
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Timber trestle bridge,6.00 meters
Concrete Bridge• Reinforced concrete pre-cast
slab or reinforced flat slab
shall be 6.00 meters
• Reinforced Concrete Deck
Girder (RCDG) – span shall
be 8.00 to 12.00 meters
• Reinforced Concrete Box
Girder – span shall be from
22.00 m to 30.00 meters
Pre-stressed concrete
• Channel beams, 11 to 13.40
meters
• Tee-beams, 15.80 to 18.90
meters
• I-beams, 9.00 to 42.68 meters
• Box Girders, span over 30.00
meters
Recommended Limits of Superstructures
for Simple Span Bridges
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Steel Bridges
• Composite I-Beam, Span from 15 m to 30 m
• Steel Plate Girder, Span from 20 m to 50 m
• Bailey Bridge, Span from 9.0 m to 30 m
• Steel Truss, Span from 36.50 to 128 m
Suspension Bridge, span from 73 m & over
Recommended Limits of Superstructures
for Simple Span Bridges
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Predicted Flood Level at
50 year return period
Normal Water Level
General Scour
= 4m
Local Scour
= 4m
6m
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Sample Bent RCDGBridge
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Abutment
Abutmen
t
•Distance between piers = 15.0 m
•Range of Pier Heights = max 4.0 m
Bent Bridge
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Bridges & Culverts
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APPLICABLE TYPES OF CULVERTS
Type Length Width/Span
Diameter
Height/
Diameter
RCPC 1000mm 300-2400mm
300-2400mm
RCBC 3 Barrels 600-3000mm
600-3000mm
RC Elliptical
3 Barrels 3000mm minor
3000mm major
Corrugated
Metal
3000mm/ unit
18000mm 8000mm
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Corrugated Metal Culvert
BOTTOM PLATE
E
F
D
B
CA
CORNER PLATE
SPRINGLINE
HORIZONTAL SPAN OF TOP ARCTOP OF CORNER
PLATE
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CMC Image
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RCBC
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Multi-Barrel
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Multi-Barrel Traffic Slab
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Circular Metal Culvert
![Page 48: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/48.jpg)
Timber Culvert
![Page 49: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/49.jpg)
CMC Image
![Page 50: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/50.jpg)
Twin-Barrel Multi-Purpose
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RCBC Apron
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RCBC Energy Dissipator
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CMC Interior View
![Page 54: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/54.jpg)
CMC Wingwall
![Page 55: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/55.jpg)
Timber Culvert
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Arch Bridge/Culvert?
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Bridge Nomenclature
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General Bridge Nomenclature
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Pier Nomenclature
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Hammerhead
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Pier Nomenclature
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Tied Column
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Pier Nomenclature
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Pile Bent
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Solid Pier
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Arch Bridge Nomenclature
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Arch Masonry
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Truss Nomenclature
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Bearing Nomenclature
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Cracks Nomenclature
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Abutment Components
BACKWALL
CAP BEAM
FOOTING
COLUMN
FOOTING
COLUMN
COLUMN
FOOTING
FLOATING WINGWALL
BRIDGE SEATBACKWALL
CAP BEAM
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Abutment Components
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Classification of Bridges by Materials
Timber
Concrete
Steel
Masonry
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Bailey Bridge w/o Running Board
![Page 75: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/75.jpg)
Glue Laminated Bridge
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Concrete (RCDG) Bridge
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Concrete Arch Bridge
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Steel Girder Bridge
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Steel Truss Girder Bridge
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Steel Arch Bridge
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Steel Truss Through Bridge
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Suspension Bridge
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Special Steel Bridge
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Classification of Bridges by Structural Systems
Slab/T-Beam
Deck Girder
Through Bridge
Multi-Span
Continuous Splan
Arch Bridge
Rigid Frame
Tied Arch Bridge
Suspension
Cable Stayed
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Slab/T-Beam Bridge
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Concrete Slab Bridge
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Concrete T-Beam Bridge
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Deck Girder Bridge
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I-Girder Bridge
![Page 90: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/90.jpg)
Box Girders
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Through Bridge
![Page 92: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/92.jpg)
Steel Truss Through Bridge
![Page 93: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/93.jpg)
Timber Through Bridge
![Page 94: PLANNING AND DESIGN PARAMETERS - QUEJA @Workqueja.yolasite.com/resources/Planning and Design Parameters... · planning and design parameters bridge structures ... substructure abutment](https://reader033.fdocuments.us/reader033/viewer/2022052917/5ac8dfef7f8b9a40728d1e44/html5/thumbnails/94.jpg)
Multi-Span Simple Bridge
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Multi-Span w/Column Bents
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Multi-Span Concrete
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Multi-Span
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End of Presentation