IT'S ALL IN THE BRACING

Boston, Massachusetts, engineers used an unusual T-panel wall system with a structural steel web to expand a subway station without damaging nearby historic buildings. Boston's T-panel system is unique in that it uses a structural steel truss as its web. Site limitations require the stem of the T to lean into the excavation; a portion of the stems in the west entrance will be removed when the project is complete. By using steel instead of reinforced concrete for the web, it will be easier for the engineers to remove those portions. The more slender and discrete elements of the truss also afford more room for the workers to construct the platform and the mezzanine framing. The support that the T-panel system provides minimizes impact to the unreinforced subway tunnel and surrounding buildings.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Kirmani, M
  • Highfill, S
  • Chen, G
• Publication Date: 1999-3

Language

• English

Media Info

• Features: Figures; Photos;
• Pagination: p. 40-43
• Serial:
  • Civil Engineering
  • Volume: 69
  • Issue Number: 3
  • Publisher: American Society of Civil Engineers
  • ISSN: 0885-7024
  • Serial URL: http://www.pubs.asce.org/ceonline/newce/html

Subject/Index Terms

• TRT Terms: Construction; Excavations; Foundation engineering; Historic preservation; Structural steel; Subway stations; T beams; Trusses; Tunneling; Walls; Webbing
• Geographic Terms: Boston (Massachusetts)
• Subject Areas: Bridges and other structures; Construction; History; Maintenance and Preservation; Public Transportation;

Filing Info

• Accession Number: 00762816
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 20 1999 12:00AM