REFURBISHMENT OF SPENCER RIVER BRIDGE, NORTHAMPTON

A detailed account is given of the widening and strengthening of the spencer river bridge carried out as part of the improvement of the east-west route into northampton. The existing bridge, built in the 1880'S, comprised three blue brick arches each with a clear span of 9.12m and width of 10.35m. A detailed description is given of the survey carried out to assess the condition of the bridge and the analysis methods used including mexe, elastic analysis and graphical analysis. Remedial measures were found to be necessary to prolong the life of the bridge and summaries are given of the six options examined. Lining the existing arches with pre-cast concrete segmental units was the solution chosen and details are given of the construction methods and computer programs used. The widening structure also used pre-cast segmental units. A gap of 50mm separated it from the existing structure and all in-situ concrete was faced in blue brick-work to match the original bridge. Details are given of the procedures involved in the design of the widening structure and of the sequence of operations necessary to ensure maintenance of two-way traffic during construction. (TRRL)

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  • Corporate Authors:

    INSTITUTION OF HIGHWAYS & TRANSPORTATION

    6 ENDSLEIGH STREET
    LONDON,   United Kingdom  WC1H 0DZ
  • Authors:
    • Hughes, R T
    • Rafferty, M M
  • Publication Date: 1988-6

Media Info

  • Pagination: p. 27-33
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00493255
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS, ATRI
  • Created Date: May 31 1990 12:00AM