ULTIMATE CAPACITY ANALYSIS OF BRIDGES WITH DETERIORATED CONNECTIONS OR MEMBERS

Inspection of old bridges often reveals structural deterioration due to damage and corrosion. These conditions should be accounted for in the reassessment of the structure. Linear global analysis may give too conservative estimates for the structural capacity, whereas nonlinear global analyses that account for possible redistribution of member forces may show that the bridge in the deteriorate condition has sufficient capacity. In the present study, two bridges are analysed by means of a nonlinear 3D frame finite element (FE) program. One bridge represents a railway bridge of trusswork type. The other is a cable stayed suspension bridge with a trusswork bridge deck. Different scenarios of deterioration are analysed, both regarding connections and members. Bolted connection characterized by first yield and fully plastic behaviour are accounted for by stress resultant joint models. (A) For the covering abstract see IRRD 882313.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 361-9

Subject/Index Terms

Filing Info

  • Accession Number: 00729476
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-419-21210-8
  • Files: ITRD
  • Created Date: Dec 26 1996 12:00AM