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1
Major Issues on Bridge III
Bridge Design
Super Structure
R.C Girder
1'-8"
5'-3"
0'-7"
1" Ø-12 Nos
SECTION A-A SECTION B-B SECTION C-C
4'-0"
1'-0"DETAIL OF MID DIAPHRAM
Design strength of concrete=3000-psi (Cylinder)Yield strength of Re-bar =40000-psiCover Thickness = 1.5"Min splice length=44ØAlternative bar splice bet. L/5 to L/4 from the end.
Dead Load Camber of 3/4"at Mid-span.
NOTE;
5/8" Ø-18" c/c
3/4" Ø Side bars
3/8" Ø-9" c/c
1" Ø-34 Nos
5/8" Ø 4-1/2" c/c1/2" Ø 6" c/c 1" cover
1'-8"
5'-3"
0'-7"
1" Ø-15 Nos5/8" Ø-18" c/c
3/4" Ø Side bars
3/8" Ø-6" c/c
1" Ø-31 Nos
5/8" Ø 4-1/2" c/c1/2" Ø 6" c/c 1" cover
1" Spacer Bar 1" Spacer Bar1" Spacer Bar
5'-3"
0'-7"
1" Ø-19 Nos5/8" Ø-18" c/c
3/4" Ø Side bars
3/8" Ø-6" c/c
1" Ø-27 Nos
5/8" Ø 4-1/2" c/c1/2" Ø 6" c/c 1" cover
1" Spacer Bar
1'-8"
1" Ø-3 Nos
3/4" Ø Side bars
Ø 14" Stirrup1" Ø-3 Nos
3'-0"
1'-0"DETAIL OF END DIAPHRAM
1" Ø-3 Nos
3/4" Ø Side barsØ 14" Stirrup
1" Ø-3 Nos
2
Major Issues on Bridge III
Bridge Design
Super Structure
P.C Girder
3
Major Issues on Bridge III
Bridge Design
Super Structure
Slab
4
Major Issues on Bridge III
Bridge Design
Super Structure
Steel Truss , Cable Stayed , Suspension
Invite the international open tender for Material including design.
ADB
Construction
Foundation Work by Bored Machines
Construction of Bridge
Steel Truss Erection made by (3) Nos. of erection Towers and 5 Nos; of Mast Cranes simultaneously
Completion of Main Bridge
8
Major Issues on Bridge III
Bridge Design
Super Structure
Steel Truss
9
Major Issues on Bridge III
Bridge Design
Super Structure
Cable Stayed Bridge
10
Major Issues on Bridge III
Bridge Design
Super Structure
Suspension Bridge
Some bridges in Myanmar Uru Bridge Maezar Bridge
Myitthar Bridge (Kalaywa) Chindwin Bridge (Monywa)
Master Plan for Arterial Road Network Development in Myanmar
14
Establishment and operation of technical standards IV
Bridge Design
Standard Specifications for Highway Bridges For the Loading assumptions
- adopted by The American Association of State Highway and Transportation Officials (AASHTO)
- HS - 25 (125%of HS – 20 of AASHTO Highway Loadings) - Single heavy vehicle load of 75 t at 10m apart.
15
Expected Technical supports from Japan V
Challenges in Bridge sector
Bridge Maintenance and Management System is urgently needed for our
existing bridges over 20 Years Service life.
16
Conclusion VI
Our practice is not high technique
Trying improve the technical knowledge
Wish promote the information related to
Advanced Technology to enhance Road and
Bridge sectors
17