NON-SLIP BEARINGS ADD TO M6 HEADACHES

A description is given of the present problems associated with the bridge bearings at Gravelly Hill and other Midland Links structures. The bearings, consisting of three steel plates are designed to slide over each other. Bearing seizure and corrosion are present, the initial coating of molybdenum disulphide being the only lubricant at the steel/steel interface. Additionally there is the failure of the mortar packing beneath the bearings, and a description is given of the measures being undertaken for its replacement. Resin injection is to be used for repairing the cracked concrete bridge deck slabs. Use is being made of silica gel for reduction of corrosion due to moisture where concrete crossheads give way to steel boxes. It is proposed to use the thormajoint bridging system in the reapir work. (TRRL)

Media Info

  • Features: Photos;
  • Pagination: p. 18-20
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00330794
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM