FHWA Geotech/Substructure: ABC

Transcription

1 FHWA Geotech/Substructure: ABC Efficiency through technology and collaboration Benjamin Beerman, PE Federal Highway Atlanta, GA (404)

2 What are some of the trends in ABC specific to Geotech/Substructures?

3 PBES PBES: Pile Lagging Conventional Paradigm Shift old practices PBES: Grouted Couplers PBES: Pile Pockets

4 Foundation/Substructure work under a separate phase

5 Video Link

6 Walls

7 Walls

8 Straddle Cap

9 Abutments: New or Existing?

10 GRS-IBS

11 GRS-IBS

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18 GRS-IBS

19 GRS-IBS

20 CIP w/ T-wall

21 T-Wall

22 Ontario: Hwy 401 Cornwall Center Rd. Overpass (4/2015) GRS

23 SPMT Example

24 SPMT Example

25 SPMT Example

26 SPMT Example

27 GRS good!

28 Sleeper Slabs no?

29 SPMT Example (surcharge) I-80 State Street to 1300 East

30 Lateral Loads occur: Bid-Well Demolition Landing Wind Devils are in the details

31 Fixity and lateral stability is provided Much Better!

32 WVDOH: Basnettville 2016 Layout!

33 PBES/ABC

34 PBES/ABC

35 PBES/ABC

36 PBES/ABC

37 PBES/ABC

38 PBES/ABC $2.4M $2.1 $1.5 $1.43M

39 PBES/ABC

40 PBES/ABC

41 Cassion Shells Tappan Zee: $4Billion

42 Other Example

43 Boeing Bridge

44 Boeing Bridge

45 Boeing Bridge

46 Lake Bridges (KYDOT) 30 dia x 1 x 210 ft 72 dia x 2 x 180 ft ~500,000 ft-lb, 80 Ton

47 ~60% less material no rebar cage no rebar fabrication no on-site crew no rebar lift CFST

48 Re-Use Foundations Milton Madison ~$30-50M SR30 over Bessemer Avenue District 11, 57 hours

49 Re-Use Foundations Re-Use & ABC compliment one another!!! Benefits: Alignment Studies NEPA / Environmental Right-of-Way Utility MOT

50 Chapter 1- Introduction Bridge Foundation Reuse Best Practice Guideline (~ end of summer 17) Chapter 2- Reuse Decision Model Chapter 3- Evaluation of Existing Foundations / Substructure Chapter 4- Foundations / Substructure Strengthening In Progress Chapter 5- Case Histories Contact: Frank Jalinoos, FHWA R&D (202) ; frank.jalinoos@dot.gov For more information, visit

51 Increased use of separate stage construction -- under/adjacent/around, different strategies Changes in structural elements -- GeoGrid (SPMTs/Approach Slabs) -- Straddle cap ~40 -- CFST Changes in construction equipment -- larger/different hammers Changes in practices -- Foundation/Substructure re-use Summary

52 State of the Industry Updates

53 2014 AASHTO HSCOBS Strategic Plan Program Objective No. 5 of 8: Accelerated Bridge Delivery and Construction

54 12-98: Guidelines for PBES Tolerances and Dynamic Effects of Bridge Moves : Development of an ABC Design and Construction Specification : System Performance of ABC Connection in Moderate-to-High Seismic Regions

55 ABC Subcommittee Reorganization AFF10 General Structures parent committee AFF10(3) Subcommittee for ABC AFF00 Design Section (parent) AFH00 Construction Section AFF00(2) Joint Subcommittee for ABC

56 Meeting & Workshop materials is posted

57 New Publications

58 FHWA Tech Notes 58 infrastructure/structures/14084/index.cfm

59 FHWA - Tech Notes

60 ars/ DispForm.aspx?ID=1269

61 Monthly ABC Webinars: 78 th webinar to date! Thursday May18, :00 to 2:00 p.m. EST VADOTs High Performance Concrete Link Slabs & Overlay 61

62 Project Examples use PBES/ABC - Project Summary - Contract Plans - Specifications - Bid Tabs - Schedule - Pictures

63 170 Technical Papers 9 four hour workshops: -Geo Tools for ABC -LWC, part 1 & 2 -DB & CMGC procurement -Lateral Slide Overview -LRFD concrete & steel -GRS-IBS

64 What is good for our customers is good for all of us, ABC Demonstrates: good government/ good stewardship Garners and fosters public/political support for transportation programs Positive message of our contracting and engineering community Better product: safer, less risk, better quality, better use of our time/resources

65 U.S.A. is the Global Leader No other country has completed more ABC projects in terms of Volume Diversity Complexity Effectiveness

66 Thank You! FHWA Benjamin Beerman, P.E.