Structures Functional Group

Technical Committee 8– Concrete Structures & Foundations

This committee is responsible for the development and publication of recommended practices and information relating to:

  • General specifications for all types of concrete, reinforced concrete, pre or post-tensioned concrete used in railway structures except concrete cross ties or concrete switch ties.
  • Design, construction and maintenance of railway structures, foundations and footings utilizing any form of concrete.
  • Retaining walls of any material.
  • Tunnel lining of any material.
  • Piling of any material.
  • Crib walls of any material.
  • Water proofing of any material.
  • Pier protection of any material.
  • Subsurface investigation of any material.

Chair

Paul B. Michiels, PE

Structural Practice Leader - Rail/Industrial

Wilson & Company, Inc.

Email: paul.michiels@wilsonco.com

Vice Chair

Damian Wallner, PE

Senior Manager of Structures Design

Union Pacific

Email: dgwallne@up.com

Secretary

Lisa Hoekenga, PE, SE

Director- Rail Bridges & Structures

Michael Baker International

Email: lisa.hoekenga@mbakerintl.com
Portland, Maine Meeting – October 4 and 5, 2018
We toured the Sarah Mildred Long Lift Bridge, which spans the Piscataqua River between Portsmouth, New Hampshire, and Kittery, Maine.
Pueblo, Colorado Meeting - May 2 and 3, 2019
We met at the Transportation Technology Center, Inc. (TTCI) and toured the Facility for Accelerated Service Testing (FAST) tracks.

Subcommittees and Current Assignments

Subcommittee 1:

C1-2: Review and update Part 2 – Reinforced Concrete Design and associated Commentary. Ongoing assignment.

A2-21-01: Part 2 Updates per Reaffirmation Review. Ongoing assignment.
D1-1-11: Address design of deep beam requirements, torsion requirements, strut and tie modeling and anchoring dowels into concrete to be included in Part 2. Ongoing assignment.

C1-16: Review and update Part 16 - Design and Construction of Reinforced Concrete Box Culverts and associated Commentary. Ongoing assignment.

A16-21-01: Part 16 Updates per Reaffirmation Review. Ongoing assignment.

C1-17: Review and update Part 17 – Prestressed Concrete and associated Commentary. Ongoing assignment. Ongoing assignment.

A17-21-01: Part 17 Updates per Reaffirmation Review. Ongoing assignment.

C1-19: Review and update Part 19 – Rating of Existing Concrete Bridges and associated Commentary. Ongoing assignment.

A19-23-01: Part 19 Update to Load Rating. Ongoing assignment.

C1-26: Review and update Part 2 - Recommendations for the Design of Segmental Bridges. Ongoing assignment.

A26-1-07: Update Part 26 - Segmental Bridge Construction. Ongoing assignment.

C1-27: Review and update Part 27 – Concrete Slab Track and associated Commentary. Ongoing assignment.

D1-1-15: Direct Fixation Manual Material. Ongoing assignment.

Subcommittee 2:
C2-04: Review and Update Part 4-Pile Foundations, Ongoing assignment

  • A04-23-02 Update Section 4.4. Pile Structural Design
    • LB08-23-13 Letter Ballot Submitted to Committee 8 for Review and Comment, 4/2024

C2-20: Review and update Part 20 - Flexible Sheet Pile Bulkheads. 

  • A20-18-01: New Part 20: includes revisions to Part 5, 6, 7, and 28(in conjunction with SC4)
    • This assignment will be combined with review and update of Part 28 - Temporary Structures for Construction (in conjunction with SC-4) and be developed into new Part 20- Earth Retention Systems. Rework of Parts 5, 6 and 7 will also be conducted. Ongoing through 2026.

Subcommittee 3:

D3-2-19: (LB 08-24-05) - Develop section 1.28 Mass Concrete.

A29-20-01: (LB 08-20-09) - Revise Sections 29.18, 29.14.4 to cover ballast mats.

A29-20-02: (LB 08-21-03) – Reorganization of Part 29.

Subcommittee 4:
C4-28: Continuing Assignment Part 28, Temporary Structures for Construction. Review of Part 28, and Comparison of Parts 28 and 20. Review for discrepancies between these two Parts (in conjunction with SC-2, assignment C2-20).

  • Will be reviewed for discrepancies between it and Part 20, “Flexible Sheet Pile Bulkheads” once revisions to Part 20 have been completed. The revised Part 20 has not been completed, so no progress to report at this time.

C4-23: Continuing Assignment Part 23, Pier Protection Systems at Spans over Navigable Streams. Review revisions supplied by Subcommittee 1.

  • Work is ongoing

D4-1-21: Update Section 14.5 Repair Methods

  • Update and edits complete - will be balloted as LB 08-21-08

D4-1-22: Update Section 14.4.9 Fiber Reinforced Polymers (FRP Composites)

D4-1-18: Comparison of Parts 14 and 21 with Work Provided by Committee 10 (including Committee 42).

  • Comparisons of Handbook of Conventional Maintenance Practices for Railroad Bridges with Part 14 and part 21 is complete.  Currently waiting on C10 for feedback.

C4-23-18: Scour Protection for Maintenance of Concrete Structures. 

  • Work is ongoing

C4-1-19: Review of ACI 546.2R-10 Guide to Underwater Repair of Concrete

  • Work is ongoing

C4-x-19: Review of Chapter 8 References for Replacement with Newer Versions.

  • Work is ongoing - Specific assignments will be determined by the specific Part as applicable during review.