CREEP ANALYSIS OF HYBRID INTEGRAL BRIDGES

A state-of-the-art three-dimensional (3-D) model is developed and utilized for nonlinear creep analysis of composite (steel stringer-concrete slab) integral bridges. The results of the analysis are evaluated and compared with results of an equivalent two-dimensional (2-D) linear creep analysis. The rate of creep method and the age-adjusted effective modulus method are employed for the 3-D and the 2-D analysis, respectively. Two typical structural systems are analyzed: a single-span bridge (15.24 m) and a two-span bridge (2 x 34.75 m). Changes of stress with time at critical points of the bridges are shown and comparisons of the 2-D and the 3-D analyses are included. Evaluation of the results with respect to the behavior of integral bridges is presented.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 147-154
  • Monograph Title: Steel, concrete, and wood bridges
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00711802
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 25 1995 12:00AM