Accelerated Bridge Construction Examples We have been using ABC - - PowerPoint PPT Presentation

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Accelerated Bridge Construction Examples We have been using ABC - - PowerPoint PPT Presentation

Aug 25, 2022 496 likes •725 views

Accelerated Bridge Construction Examples We have been using ABC methods to build bridges since 2007 on approximately 25 projects. We used this approach in response to Tropical Storm Irene The following slides show some examples of

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SLIDE 1

Accelerated Bridge Construction Examples

  • We have been using ABC methods to build bridges since

2007 on approximately 25 projects.

  • We used this approach in response to Tropical Storm Irene
  • The following slides show some examples of past projects
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SLIDE 2

Accelerated Bridge Construction

Driven steel piles with precast concrete cap for abutment

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SLIDE 3

Accelerated Bridge Construction

The first of three Precast Concrete Caps being placed

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SLIDE 4

Accelerated Bridge Construction

Precast concrete Abutment in place and ready for Superstructure

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SLIDE 5

Accelerated Bridge Construction

Precast Concrete NEXT Beam lifted into place

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SLIDE 6

Accelerated Bridge Construction

The second NEXT Beam being placed

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SLIDE 7

Accelerated Bridge Construction

Three NEXT Beams in place with the final unit ready

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SLIDE 8

Accelerated Bridge Construction

Precast Bridge Unit (PBU) delivered to site

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SLIDE 9

Accelerated Bridge Construction

Precast Bridge Unit (PBU) lifted onto abutments

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SLIDE 10

Accelerated Bridge Construction

Precast Bridge Units (PBUs) connected together

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SLIDE 11

Rigid Frame Examples

  • Generally arch shapes and flat-top frames are both allowed
  • There are many different configurations available
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SLIDE 12

Rigid Frames

Site is dewatered and excavated for footing

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SLIDE 13

Rigid Frames

Precast footing section lifted into position

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SLIDE 14

Rigid Frames

Footing components are connected together

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SLIDE 15

Rigid Frames

Abutment is backfilled and compacted

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SLIDE 16

Rigid Frames

Precast frame is lifted into position on the abutment

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SLIDE 17

Rigid Frames

More sections added – Note dewatering pipe

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SLIDE 18

Rigid Frames

Top of frame is waterproofed

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SLIDE 19

Rigid Frames

Gravel roadway surface is placed over frame section

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SLIDE 20

Rigid Frames

Side view of frame with guardrail attached

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SLIDE 21

Building Bridges pre-1995