KCI Concrete Journal

Korea Concrete Institute (한국콘크리트학회)
권호 표지

Realistic Equivalent Load Methods in Prestressed Concrete Structures

  • Oh, Byung-Hwan (Department of Civil Engineering, Seoul National University) ;
  • Jeon, Se-Jin (Department of Civil Engineering, Seoul National University)
  • Published : 2001.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this state-of-the-art paper is to explore several important methods thor obtaining the equivalent loads in prestressed concrete structures. and to clarify the theoretical basis and implied assumptions of each method. The method devised in this stuffily include the use of curvature of tendon, characteristics of primary moment, self-equilibrium condition and linear segments approximation of tendon. It is shown that equivalent loading system it not uniquely determined depending on the approach adopted to calculate the equivalent loads. Self-equilibrium conditions of the equivalent loading system are carefully discussed. Numerical examples are presented to show the differences among the methods arid results of the approximations in each method explicitly.

Keywords

References

  1. Journal of Structural Engineering v.126 no.2 Structural Modeling of Posttensioned Members Aalami,B.O.
  2. ACI Journal,Proceedings v.60 no.6 Load Balancing Method for Design and Analysis of Prestressed Concrete Structures Lin,T.Y.
  3. PCI Journal v.22 no.2 Shear Component of Prestress by Equivalent Loads Darwin,D.
  4. PCI Journal v.35 no.2 Friction Losses in Prestressed Steel by Equivalent Load Method Keyder,E.
  5. Design of Prestressed Concrete Structures(3rd Edition) Lin,T.Y.;Burns,Ned H.
  6. ACI Structural Journal v.87 no.6 Load Balancing: A Comprehensive Solution to Post-Tensioning Aalami,B.O.
  7. Prestressed Concrete Analysis and Design: Fundamentals Naaman,A.E.
  8. Advanced Engineering Mathematics(7th Edition) Kreyszig,E.
  9. Ph.D.Thesis, Seoul National University A Study on the Static and Dynamic Spatial Behaviour of Prestressed Concrete Bridge Considering Construction Time Steps Kim,W.J.
  10. Journal of Structural Division v.106 no.ST2 Nonlinear Analysis of Prestressed Concrete Frames Kang,Y.J.;Scordelis,A.C.
  11. Journal of Structural Engineering v.109 no.7 Nonlinear Analysis of Prestressed Concrete Slabs Greunen,J.V.;Scordelis,A.C.
  12. Proceedings of the Korean Concrete Institute v.12 no.1 Implication and Rational Application of Equivalent Load Method in Prestressed Concrete Structures Oh,B.H.;Jeon,S.J.