slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Rapid Bridge Construction: Prefabricated Substructure Elements PowerPoint Presentation
Download Presentation
Rapid Bridge Construction: Prefabricated Substructure Elements

Loading in 2 Seconds...

play fullscreen
1 / 6

Rapid Bridge Construction: Prefabricated Substructure Elements - PowerPoint PPT Presentation


  • 181 Views
  • Uploaded on

Rapid Bridge Construction: Prefabricated Substructure Elements AASHTO RAC High Value Research Workshop July 27, 2011. Rapid Bridge Construction: Prefabricated Substructure Elements Overview. The use of precast substructure components for bridges offers several potential benefits in Wisconsin

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Rapid Bridge Construction: Prefabricated Substructure Elements


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
    Presentation Transcript
    1. Rapid Bridge Construction: Prefabricated Substructure Elements AASHTO RAC High ValueResearch Workshop July 27, 2011

    2. Rapid Bridge Construction: Prefabricated Substructure ElementsOverview The use of precast substructure components for bridges offers several potential benefits in Wisconsin • Faster bridge construction times • Reduced exposure of workersto safety hazards • Less environmental interference during construction • Fewer weather delays

    3. Rapid Bridge Construction: Prefabricated Substructure ElementsGoals and methods Propose, implement and evaluate a precast substructure system suitable for Wisconsin • After considering several elements, the project focused on abutment panels and caps for piers and piles • WisDOT conducted a pilot program with precast elements on the U.S. 63 bridge over the Rush River

    4. Rapid Bridge Construction: Prefabricated Substructure ElementsFindings On-site time savings were substantial • For a 96-foot span, placing the precast concrete abutment system took only 10½ hours for four workers • A comparable cast-in-place system would have required the same workers two weeks to place Cost was an issue • The need for a high-capacity crane drovecosts higher than expected; investigatorsrecommend lower element weights forfuture projects

    5. Rapid Bridge Construction: Prefabricated Substructure ElementsOutlook Costs should drop and expertise should improve as contractors get more experience with these methods. WisDOT intends to try this technique severaltimes before precastingother substructure elements.

    6. Rapid Bridge Construction: Prefabricated Substructure ElementsFor more information • Wisconsin Highway Research Program project 0092-07-08, Rapid Bridge Construction Technology: Precast Elements for Substructures • http://www.whrp.org/research-areas/structures/structures_0092-07-08.html • Daniel Yehdaniel.yeh@dot.wi.gov(608) 267-6977