• Like
  • Save
Masonry Arches
Upcoming SlideShare
Loading in...5
×
Uploaded on

Michael J. Cuddy, PE, TranSystems

Michael J. Cuddy, PE, TranSystems

More in: Technology , Business
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
525
On Slideshare
0
From Embeds
0
Number of Embeds
2

Actions

Shares
Downloads
0
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide
  • Good morning.My name is Peter Berg from PennDOT District 6-0 and today I am presenting with co-author Michael Cuddy from TranSystems on Cost Effective Design and Rehabilitation of Masonry Arch Bridges or as could be said “The Next 100 Years”(next slide)
  • Stone arch bridge technology represents the earliest existent bridge type in the Commonwealth. Remaining examples in the five county Philadelphia area date from 1697 through the mid-twentieth century, and represent the largest collection of stone arch bridges in the Commonwealth and one of the largest in the nation.Masonry arch bridges are comprised of courses of stone or masonry units constructed to transmit loads to the supports mainly by axial compressive forces through the arch barrel. The spandrel walls act as retaining walls to support the earth fill which carries the roadway. (next slide)
  • Like numerous other bridge types, water infiltration is the primary cause of deterioration of these structures. With this water infiltration and seasonal freeze / thaw cycles, the resulting defects are embodied by displaced sections…(next slide)
  • (next slide)
  • (next slide)
  • …and if left if left unchecked, the displaced sections can lead to a total or partial collapse.(next slide)
  • (next slide)
  • Missing stones…(next slide)
  • (next slide)
  • Broken stones…(next slide)
  • Stone masonry deterioration or blow outs…(next slide)
  • Missing or lost mortar…(next slide)
  • And again water infiltration through the mortar joints with development of efflorescence.(next slide)
  • Vegetation growth.(next slide)
  • (next slide)
  • And of course collision damage…(next slide)

Transcript

  • 1. Michael J. Cuddy, PE – TranSystemsJuly 16, 2012
  • 2. Stone Arch Bridge Components Source: Commonwealth of Pennsylvania, 1986 Preservation Combination2 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 3. Displaced Sections Preservation Combination3 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 4. Displaced Sections Preservation Combination4 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 5. Displaced Sections Preservation Combination5 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 6. Collapsed Spandrel Wall Preservation Combination6 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 7. Longitudinal Cracks Preservation Combination7 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 8. Missing Stones Preservation Combination8 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 9. Missing Stones Preservation Combination9 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 10. Broken Stones Preservation Combination10 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 11. Stone Deterioration Preservation Combination11 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 12. Missing Mortar Preservation Combination12 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 13. Water Infiltration Preservation Combination13 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 14. Vegetation Growth Preservation Combination14 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 15. Vegetation Growth Preservation Combination15 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 16. Collision Damage Preservation Combination16 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 17. CASE STUDIES Preservation Combination17 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 18. Stenton Avenue Bridge (S.R. 3003) over Wissahickon Creek Whitemarsh Township, Montgomery County Setting The bridge carries a 2 lane road over a stream in a rural setting with pasture land and forest at three quadrants of the bridge. The fourth quadrant includes a large ca. 1960 dwelling. Bridge Description Built in 1914 Total length of 168 feet as measured from end to end of wingwalls 2-Span Masonry Arch Bridge (clear spans of 30’ and 26’) comprised of rubble-coursed field stone spandrel walls and parapets with concrete capstones that continue across the wingwalls. The voussoirs of the arch rings are partially parged. The intrados are parged, and concrete toe walls have been placed. Preservation Combination18 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 19. Aerial View Showing Project Setting •Erdenheim Farm Showing Project Setting Aerial View •Fort Washington State Park •Wissahickon Trail Preservation Combination19 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 20. Stenton Avenue Masonry Arch Rehabilitation Completion Date: 2010 Cost: $1,050,000 Designer: TranSystems Owner: PennDOT District 6- 0 Preservation Combination20 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 21. Stenton Avenue Bridge Average daily traffic: 9,774 vehicles per day. Important transportation link. Critical Condition due to masonry superstructure condition with several Priority “0” and “1” recommendations requiring timely repairs. Preservation Combination21 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 22. Existing Structure Large sections of bulging spandrel walls. Preservation Combination22 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 23. Structure Was in Critical Condition Sections of the masonry walls exhibited cracks, bulges and missing or displaced stones. The structure was classified as Structurally Deficient. Preservation Combination23 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 24. Heavy Efflorescence on Intrados Coating Overall, the barrels were in good condition and suitable for reuse in the rehabilitated structure. Preservation Combination24 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 25. Substandard Bridge Railings •Existing roadway width (20’-10”) was determined to be adequate for traffic volumes. •Masonry barriers inadequate height and strength. •Substandard guiderail connections. Preservation Combination25 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 26. How Significant Issues Were Resolved Replace earth fill with lightweight concrete fill. Reconstruct stone masonry parapets with reinforced concrete cores and full width moment slab. Repoint masonry as needed. Scour repair and protection. Preservation Combination26 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 27. Typical Section Reinforced concrete moment slab constructed on the new lightweight concrete fill and existing arch barrel. Preservation Combination27 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 28. Temporary Support of Arches Arch “centering”, constructed of a timber and pipe scaffolding system, installed to stabilize the arches during rehabilitation. The existing bituminous pavement, earth fill, masonry parapets and deteriorated sections of the spandrel walls were removed. Preservation Combination28 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 29. Utility Replacement Since the utilities would ultimately be encased in the concrete fill, carrier pipes were installed that would permit the smaller diameter utility pipes to be installed after the bridge rehabilitation. Preservation Combination29 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 30. Removal of Earth Fill Concrete fill was placed over pier and abutments to stabilize the structure during masonry reconstruction. Preservation Combination30 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 31. Replaced Earth Fill With Lightweight Concrete Fill Deteriorated sections of the spandrel walls were reconstructed and concrete fill was placed up to sub-grade level of the new reinforced concrete moment slab. Preservation Combination31 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 32. Finished Concrete Moment Slab Full width reinforced concrete moment slab with integral concrete barriers was constructed on the concrete fill. The barriers were faced with stone and finished with an integral concrete capstone for aesthetics. Preservation Combination32 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 33. Typical Slab/Parapet with Reinforcement Detail Preservation Combination33 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 34. Concrete Core Barrier Stone facing was also provided on the fascia. Preservation Combination34 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 35. Repointing of Masonry Repointing was performed in accordance with the PennDOT Stone Arch Bridge Maintenance Manual and NPS Standards. Preservation Combination35 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 36. Finished Roadway Section •A bituminous wearing surface was added to the concrete moment slab to provide the appearance of the original structure. •Note increased parapet height and improved guiderail attachments. Preservation Combination36 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 37. Finished Bridge Preservation Combination37 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 38. Edges Mill Road Bridge (S.R. 4015) over a Branch of Beaver Creek Caln Township, Chester County Setting The bridge carries a 2 lane road over a stream in a rural setting. Bridge Description Built in 1916 Total length of approximately 180’ feet as measured from end to end of wingwalls 3-Span Masonry Arch Bridge (clear spans of 24’-7, 24’-8 & 24’-2) comprised of rubble-coursed field stone spandrel walls and parapets with concrete capstones that continue across the wingwalls. The intrados of each span has been parged. Preservation Combination38 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 39. Roadway View of Existing Bridge Preservation Combination39 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 40. Existing South Elevation Preservation Combination40 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 41. Longitudinal Crack in Arch Barrel Preservation Combination41 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 42. Resetting Ringstones Preservation Combination42 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 43. Resetting Ringstones Preservation Combination43 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 44. Resetting Ringstones Preservation Combination44 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 45. Bridge Plaque Preservation Combination45 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 46. Partial Width Moment Slab Preservation Combination46 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 47. Grand Opening Preservation Combination47 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 48. North Elevation – Complete Bridge Preservation Combination48 TRBADC50 / Preservation Partnerships / ByWays to the Past
  • 49. Lessons Learned/Conclusions Through the development of a streamlined repair methodology, PennDOT District 6-0 has been able to efficiently and cost effectively rehabilitate it’s structurally deficient masonry arch bridges. Over the past 2 years, construction contracts for over 25 masonry arches, have been let employing these procedures. Preservation Combination49 TRBADC50 / Preservation Partnerships / ByWays to the Past