1. Hanoi – Hochiminh city railway line Do Vang Bridge’s construction
bridges safety improvement project technology of beam casted on
scaffolding
CONTENTS
CHAPTER I: GENERAL
I: General description
II: Natural conditions of bridge construction area
III: Scope and applicable specification
CHAPTER II: TECHNOLOGY PROCESS
I: Construction sequences
II: Technology steps
1. Production and erection of scaffolding
2. Testing temporary pier and scaffolding
3. Install beam formwork
4. Beam bearing installation
5. Installation of reinforcement, duct and high strength cable
6. Placing concrete for beam
• Concrete mix design
• Concrete materials
• Construction plan layout
• Construction Equipment
• Arrangement manpower
• Concrete mixing
• Provide concrete
• Method for decrease concrete mix temperature
• Pour concrete

2. Hanoi – Hochiminh city railway line Do Vang Bridge’s construction
bridges safety improvement project technology of beam casted on
scaffolding
• Tamping
• Curing
• Emegency occurrences that may happen and resolving method
7. Prestressed cable tension
• Preparation work
• Stressing equipment.
• Prestressed cable tension
8. Grouting the duct
9. Moval of scaffoldings, formworks
CHAPTER III: MATERIAL REGULATIONS
I: General
II: Materials
1. Reinforcement
2. Prestressed anchor
3. Duct
4. Concrete
5. Pumped grout
CHAPTER IV: LABOUR SAFETY
I: Labour safety when frecting and removing scaffolding
II: Labour safety while casting concrete
III: Labour safety while dragging prestress
APPENDIX