Precast Post-tensioned Concrete Construction (Lecture # 25) – Video

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Precast Post-tensioned Concrete Construction (Lecture # 25) – PDF

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Download Civil Engineering Construction (Lecture # 25) – PDF

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Precast Post-tensioned Concrete Construction (Lecture # 25) – Excerpt

• Prestress – Post Tensioned Concrete
• Engr. Shad Muhammad
• Lecturer
• Department of Civil Engineering
• COMSATS University Islamabad, Sahiwal Campus.
• Lecture # 24 _ Prestress – Pretension Concrete Construction (Summary)
  Table of Content
• History
• Types of Steel Reinforcement
• Deformed Mild Steel Reinforcement
• Forms of Prestressing Steel
• Wires
• Strands
• Tendons
• Cables
• Bars
• Types of Prestressing Steel
• Properties of Prestressing Steel
• Pretension Concrete Construction – Introduction
• Advantages of Prestressing
• Disadvantages of Prestressing
• The comparisons between the RCC and prestressed concrete
• Internal Prestressing
• External Prestressing
• Types of Prestressing
• Methods of Prestressing
• Hydraulic Prestressing
• Mechanical Prestressing
• Electrical Prestressing
• Chemical Prestressing
• Lecture # 25 _ Prestress – Post Tensioned Concrete
  Table of Content
• Prestress – Post Tension Concrete Construction
• Post-tensioning
• Bonded Post-tensioned Concrete
• Un-bonded Post-tensioned Concrete
• Post-tensioning Sequence
• Comparison between the pre tensioning and post tensioning method
• Schematic of Post-tensioning stages
• Anchoring Devices – Strand Tendons Anchorage
• Anchoring Devices – Bar Anchorage
• Jacking and Anchoring with Wedges
• Couplers for Strands
• Grouting Equipment
• Post-tensioned Bridge Girders
• Permanent Post-Tensioned Applications

1. Cast-in-Place Bridges on Falsework
2. Post-Tensioned AASHTO, Bulb-T, and Spliced Girders
3. Precast Segmental Balanced Cantilever Bridges

3.1 Typical Features of Precast Cantilever Segments

3.2 Cantilever Tendons

3.3 Continuity Tendons in End Spans

3.4 In-Span Hinges in Balanced Cantilever Construction

4. Cast-in-Place Segmental Balanced Cantilever Bridges
5. Precast Segmental Span-by-Span Bridges

5.1 External Tendons

5.2 Tendons that are Partially External and Partially Internal

6. Transverse Post-Tensioning of Superstructures

6.1 Transverse Top Slab Post-Tensioning

6.2 Transverse Top Slab Post-Tensioning

6.3 Vertical Post-Tensioning in Diaphragms

6.4 Transverse Post-Tensioning in Deviator Ribs of Precast Segments

6.5 Vertical Post-Tensioning in Webs

7. Post-Tensioning of Substructures

7.1 Hammerhead Piers

7.2 Straddle Bents

7.3 Cantilever Piers

7.4 Precast Piers

7.5 Precast Segmental Box Section Arches

• Prestressed Girder Making
• Case Study: Hangzhou Bay Bridge
• Prestress – Post Tension Concrete Construction
  Pre-tensioned Concrete
• Prestress – Post Tension Concrete Construction
  Pre-tensioned Concrete
• Prestress – Post Tension Concrete Construction
  Post-tensioning
• Prestress – Post Tension Concrete Construction
  Post-tensioning
• Prestress – Post Tension Concrete Construction
  Post-tensioning
• Prestress – Post Tension Concrete Construction
  Bonded Post-tensioned Concrete
• Prestress – Post Tension Concrete Construction
  Bonded Post-tensioned Concrete
• Prestress – Post Tension Concrete Construction
  Un-bonded Post-tensioned Concrete
• Prestress – Post Tension Concrete Construction
  Un-bonded Post-tensioned Concrete
• Prestress – Post Tension Concrete Construction
  Post-tensioning Sequence
• Prestress – Post Tension Concrete Construction
  comparison between the pre tensioning and post tensioning method
• Prestress – Post Tension Concrete Construction
  Schematic of Post-tensioning stages
• Prestress – Post Tension Concrete Construction
  Anchoring Devices – Strand Tendons Anchorage
• Prestress – Post Tension Concrete Construction
  Anchoring Devices – Bar Anchorage
• Prestress – Post Tension Concrete Construction
  Anchoring Devices – Bar Anchorage
• Prestress – Post Tension Concrete Construction
  Jacking and Anchoring with Wedges
• Prestress – Post Tension Concrete Construction
  Couplers for Strands
• Prestress – Post Tension Concrete Construction
  Grouting Equipment
• Prestress – Post Tension Concrete Construction
  Post-tensioned Bridge Girders
  (1) Fabrication of reinforcement
• Prestress – Post Tension Concrete Construction
  Post-tensioned Bridge Girders
  (2) Placement of tendons
• Prestress – Post Tension Concrete Construction
  Post-tensioned Bridge Girders
  (3) Stretching and anchoring of tendons
• Prestress – Post Tension Concrete Construction
  Post-tensioned Bridge Girders
  (4) Reinforcement cage for box girder
• Prestress – Post Tension Concrete Construction
  Post-tensioned Bridge Girders
  (5) Formwork for box girder
• Prestress – Post Tension Concrete Construction
  Post-tensioned Bridge Girders
  (6) Post-tensioning of box girder
• Prestress – Post Tension Concrete Construction
  Post-tensioned Bridge Girders
  (7) Transporting of box girder
• Prestress – Post Tension Concrete Construction
  Post-tensioned Bridge Girders
  (8) Completed bridge
• Precast Concrete Construction
  Precast Concrete in Bridges
• Precast Concrete Construction
  Precast Concrete in Bridges
• Precast Concrete Construction
  Types of Bridges
• Precast Concrete Construction
  Advantages
• Precast Concrete Construction
  Precast Bridge Construction
• Precast Concrete Construction
  Prestressed Girders
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  1. Cast-in-Place Bridges on Falsework
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  1. Cast-in-Place Bridges on Falsework
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  2. Post-Tensioned AASHTO, Bulb-T, and Spliced Girders
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  2. Post-Tensioned AASHTO, Bulb-T, and Spliced Girders
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  2. Post-Tensioned AASHTO, Bulb-T, and Spliced Girders
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  3. Precast Segmental Balanced Cantilever Bridges
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  3. Precast Segmental Balanced Cantilever Bridges
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  3. Precast Segmental Balanced Cantilever Bridges
  3.1 Typical Features of Precast Cantilever Segments
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  3. Precast Segmental Balanced Cantilever Bridges
  3.2 Cantilever Tendons
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  3. Precast Segmental Balanced Cantilever Bridges
  3.2 Cantilever Tendons
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  3. Precast Segmental Balanced Cantilever Bridges
  3.2 Cantilever Tendons
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  3. Precast Segmental Balanced Cantilever Bridges
  3.2 Cantilever Tendons
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  3. Precast Segmental Balanced Cantilever Bridges
  3.3 Continuity Tendons in End Spans
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  3. Precast Segmental Balanced Cantilever Bridges
  3.4 In-Span Hinges in Balanced Cantilever Construction
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  4. Cast-in-Place Segmental Balanced Cantilever Bridges
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  4. Cast-in-Place Segmental Balanced Cantilever Bridges
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  5. Precast Segmental Span-by-Span Bridges
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  5. Precast Segmental Span-by-Span Bridges
  5.1 External Tendons
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  5. Precast Segmental Span-by-Span Bridges
  5.1 External Tendons
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  5. Precast Segmental Span-by-Span Bridges
  5.2 Tendons that are Partially External and Partially Internal
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  6. Transverse Post-Tensioning of Superstructures
  6.1 Transverse Top Slab Post-Tensioning
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  6. Transverse Post-Tensioning of Superstructures
  6.2 Transverse Top Slab Post-Tensioning
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  6. Transverse Post-Tensioning of Superstructures
  6.3 Vertical Post-Tensioning in Diaphragms
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  6. Transverse Post-Tensioning of Superstructures
  6.4 Transverse Post-Tensioning in Deviator Ribs of Precast Segments
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  6. Transverse Post-Tensioning of Superstructures
  6.5 Vertical Post-Tensioning in Webs
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  7. Post-Tensioning of Substructures
  7.1 Hammerhead Piers
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  7. Post-Tensioning of Substructures
  7.2 Straddle Bents
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  7. Post-Tensioning of Substructures
  7.3 Cantilever Piers
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  7. Post-Tensioning of Substructures
  7.4 Precast Piers
• Precast Concrete Construction
  Permanent Post-Tensioned Applications
  7. Post-Tensioning of Substructures
  7.5 Precast Segmental Box Section Arches
• Precast Concrete Construction
  Prestressed Girder Making
• Precast Concrete Construction
  Prestressed Girder Making
• Precast Concrete Construction
  Prestressed Girder Making
• Precast Concrete Construction
  Prestressed Girder Making
• Precast Concrete Construction
  Prestressed Girder Making
• Precast Concrete Construction
  Prestressed Girder Making
• Precast Concrete Construction
  Prestressed Girder Making
• Precast Concrete Construction
  Care To Take
• Precast Concrete Construction
  Case Study: Hangzhou Bay Bridge
• Precast Concrete Construction
  Case Study: Hangzhou Bay Bridge
• Precast Concrete Construction
  Case Study: Hangzhou Bay Bridge
• Thank-you for Listening!

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 (Shad)

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