Stretching span capability of prestressed concrete bridges under AASHTO LRFD

Yohchia F. Chen, Alex Aswad

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


A general refined analysis procedure for predicting the vehicular live load distribution on simply supported bridge girders is described. Load and Resistance Factor Design (LRFD) distribution factor formulas for flexure are carefully reviewed for modern prestressed concrete bridges made of I-girders or spread box girders with larger span-to-depth ratios. LRFD's results are compared with those obtained from the refined analysis method. Design recommendations are offered.

Original languageEnglish (US)
Pages (from-to)112-120
Number of pages9
JournalJournal of Bridge Engineering
Issue number3
StatePublished - Jan 1 1996

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction


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