Building Better Box Beam Bridges
of 61
-
Upload
sudathiptangwongchai -
Category
Documents
-
view
21 -
download
0
description
Building Better Box Beam Bridges
Transcript of Building Better Box Beam Bridges
-
5/25/2018 Building Better Box Beam Bridges
1/61
Building BetterBox Beam Bridges
-
5/25/2018 Building Better Box Beam Bridges
2/61
-
5/25/2018 Building Better Box Beam Bridges
3/61
Report Focus
1. Describe the state ofthe practice.
2. Report on lessonslearned.
3. Provide guidelines forbetter performance.
-
5/25/2018 Building Better Box Beam Bridges
4/61
Issues
Leaking Joints
Reflective DeckCracking
-
5/25/2018 Building Better Box Beam Bridges
5/61
AdjacentMember
Bridges
-
5/25/2018 Building Better Box Beam Bridges
6/61
AASHTO Box Beams
AASHTO Slab Beams
Types of Sections
-
5/25/2018 Building Better Box Beam Bridges
7/61
Box Beams
Slab Beams
Types of Sections
-
5/25/2018 Building Better Box Beam Bridges
8/61Double Tees
Deck Bulb Tees
Types of Sections
-
5/25/2018 Building Better Box Beam Bridges
9/61
50,000 adjacent box bridges
(more than 8%)
9,000 spread box bridges
60 Years
Box Beam Bridges
-
5/25/2018 Building Better Box Beam Bridges
10/61
Spread Box Beam Bridges
NOT considered adjacent member bridges
-
5/25/2018 Building Better Box Beam Bridges
11/61
Non-Composite Superstructure
-
5/25/2018 Building Better Box Beam Bridges
12/61
Non-Composite Superstructure
-
5/25/2018 Building Better Box Beam Bridges
13/61
Non-Composite Superstructure
-
5/25/2018 Building Better Box Beam Bridges
14/61
Non-Composite Superstructure
-
5/25/2018 Building Better Box Beam Bridges
15/61
Non-Composite Superstructure
-
5/25/2018 Building Better Box Beam Bridges
16/61
Composite Superstructure
-
5/25/2018 Building Better Box Beam Bridges
17/61
Composite Superstructure
-
5/25/2018 Building Better Box Beam Bridges
18/61
Composite Superstructure
-
5/25/2018 Building Better Box Beam Bridges
19/61
Continuity
-
5/25/2018 Building Better Box Beam Bridges
20/61
Continuity
-
5/25/2018 Building Better Box Beam Bridges
21/61
LongitudinalJoints
-
5/25/2018 Building Better Box Beam Bridges
22/61
Shear Key Partial Depth
-
5/25/2018 Building Better Box Beam Bridges
23/61
Shear Key Full Depth
-
5/25/2018 Building Better Box Beam Bridges
24/61
Shear Key - TxDOT
-
5/25/2018 Building Better Box Beam Bridges
25/61
Shear Key - TxDOT
-
5/25/2018 Building Better Box Beam Bridges
26/61
Transverse Tie Rods
-
5/25/2018 Building Better Box Beam Bridges
27/61
Transverse Tie Rods
-
5/25/2018 Building Better Box Beam Bridges
28/61
Transverse Tie Rods
-
5/25/2018 Building Better Box Beam Bridges
29/61
Design
-
5/25/2018 Building Better Box Beam Bridges
30/61
Non-Composite
Vs.
Composite
Design
-
5/25/2018 Building Better Box Beam Bridges
31/61
Design
-
5/25/2018 Building Better Box Beam Bridges
32/61
Structural Overlay
OR
Sufficiently connected to act as a unit
EQUALS
Better Distribution between Beams
Live Load Distribution per AASHTO LRFD
-
5/25/2018 Building Better Box Beam Bridges
33/61
Live Load Distribution per AASHTO LRFD
-
5/25/2018 Building Better Box Beam Bridges
34/61
Shear Transfer Joints
Vs.
Shear-Flexure Transfer Joints
Sufficiently connected to act as a unit
Transverse Connection per AASHTO LRFD
-
5/25/2018 Building Better Box Beam Bridges
35/61
Transverse prestress amount
determined by strip method
or two-dimensional analysis
shall not be less than 0.25 ksi
through the key.
Transverse Connection per AASHTO LRFD
-
5/25/2018 Building Better Box Beam Bridges
36/61
Bearings
B i
-
5/25/2018 Building Better Box Beam Bridges
37/61
Bearings
-
5/25/2018 Building Better Box Beam Bridges
38/61
Inspection andMaintenance
Mi hi St d
-
5/25/2018 Building Better Box Beam Bridges
39/61
Michigan Study
Mi hi St d
-
5/25/2018 Building Better Box Beam Bridges
40/61
Michigan Study
Mi hi St d
-
5/25/2018 Building Better Box Beam Bridges
41/61
Michigan Inspection Handbook
Michigan Study
Mi hi St d
-
5/25/2018 Building Better Box Beam Bridges
42/61
Michigan Study
-
5/25/2018 Building Better Box Beam Bridges
43/61
Survey ofCurrent
Practice
D t C ll ti
-
5/25/2018 Building Better Box Beam Bridges
44/61
Data Collection
D t C ll ti
-
5/25/2018 Building Better Box Beam Bridges
45/61
A. General
B. Deck Slabs and Overlays
C. Box Beam ConstructionD. Keyways
E. Prestressing
F. Bearings
G. Experience
Data Collection
Q ti i R
-
5/25/2018 Building Better Box Beam Bridges
46/61
Questionnaire Response
-
5/25/2018 Building Better Box Beam Bridges
47/61
Case StudiesSummary
Case St dies
-
5/25/2018 Building Better Box Beam Bridges
48/61
TxDOT 9-Day Bridge
Colorado Weekend Bridge
Ohio 19-Day Box Girder Bridge BNSF Railway over Route 160,
Springfield, MO
MoDOT Route 100 over I-44,Gray Summit, MO
Case Studies
Route 100 over I 44
-
5/25/2018 Building Better Box Beam Bridges
49/61
Original Bridge
Route 100 over I-44
Route 100 over I 44
-
5/25/2018 Building Better Box Beam Bridges
50/61
Original Steel Design Layout
Route 100 over I-44
Route 100 over I 44
-
5/25/2018 Building Better Box Beam Bridges
51/61
VE ProposalAdjacent Box Beams
Route 100 over I-44
Route 100 over I 44
-
5/25/2018 Building Better Box Beam Bridges
52/61
Route 100 over I-44
BNSF over Route 160
-
5/25/2018 Building Better Box Beam Bridges
53/61
BNSF over Route 160
BNSF over Route 160
-
5/25/2018 Building Better Box Beam Bridges
54/61
BNSF over Route 160
-
5/25/2018 Building Better Box Beam Bridges
55/61
Conclusions
Conclusions
-
5/25/2018 Building Better Box Beam Bridges
56/61
Minimize Longitudinal Cracking
Water Penetration
De-Icing Chemicals
Ensure Long-Term Performance
Conclusions
Conclusions
-
5/25/2018 Building Better Box Beam Bridges
57/61
Larger Shear Keys, Full Depth
Increased Post-Tensioning Force
Composite Reinforced Concrete Deck
Design
Conclusions
Conclusions
-
5/25/2018 Building Better Box Beam Bridges
58/61
Minimize Skew if Possible
Three or Four Point Bearing System
Increase Concrete Cover
Design
Conclusions
Conclusions
-
5/25/2018 Building Better Box Beam Bridges
59/61
Use Polystyrene Forms for Voids
Properly Anchor Voids
Use of High Performance Concrete,Corrosion Inhibitors
Fabrication
Conclusions
Conclusions
-
5/25/2018 Building Better Box Beam Bridges
60/61
Sandblast Shear Keys ImmediatelyPrior to Grouting
Use Non-Shrink Epoxy Grout
PT Layout and Sequence
Construction
Conclusions
-
5/25/2018 Building Better Box Beam Bridges
61/61
