X hits on this document

13 views

0 shares

0 downloads

0 comments

5 / 6

Bridge Falsework Forum October 15, 2007 Page 5 of 6

4. 6. 4. Solutions suggested

  • 5.

    GROUP DSCUSSION

    • 5. 1.

      Caltrans needs to send out information on incidents – None of us wants to duplicate a mistake. Industry needs to know what happened so they can prevent re-occurrence. Caltrans is moving toward doing this in a way that will avoid legal issues.

5.

2.

Risk – what is the acceptable level of risk? What is acceptable? How do we mitigate the risk?

5.

3. Seems like most of the past incidents all revolve around human error and common sense. How do we legislate common sense? Most of the problems seem to be individual human performance, not specs or procedures related.

6.

WINCHES FOR FALSEWORK REMOVAL

6. 6. 6.

  • 1.

    Traffic window limitations

  • 2.

    Operation cannot be reasonably done otherwise

  • 3.

    Does not encroach upon the vertical and horizontal traffic clearances

7.

Winches – Advisory Team Recommendations

7. 7. 7.

7.

7.

  • 1.

    Redundant systems may be required

  • 2.

    Use High Strength rods or strands and winches.

  • 3.

    High strength rods or strands

      • 7. 3. 1.

        Requires redundant system

      • 7. 3. 2.

        Requires use of new strand

  • 4.

    Winches only

      • 7. 4. 1.

        Safety factor (5:1)

      • 7. 4. 2.

        Certification – Winches are to be tested and certified on a regular basis

      • 7. 4. 3.

        Inspection of critical elements (NDT)

  • 5.

    Implementation – (Possibly by CCO.) Specs may be re-written.

      • 7. 5. 1.

        Provide additional direction to field staff as to what’s allowable.

      • 7. 5. 2.

        Update Falsework Manual

  • 8.

    DISCUSSION / COMMENTS ON WINCHING FROM THE GROUP.

    • 8. 1.

      Redundancy – Where to you cap the redundancy.

Meeting notes

11/21/07

Document info
Document views13
Page views13
Page last viewedThu Dec 08 14:49:49 UTC 2016
Pages6
Paragraphs180
Words1913

Comments