SIMPLIFIED TRUSS MODEL FOR EXTERNALLY PRESTRESSED CONCRETE BEAMS

• SIVALEEPUNTH Chunyakom

  Dept. of Civil Eng., Tokyo Institute of Technology

• NIWA Junichiro

  Dept. of Civil Eng., Tokyo Institute of Technology

• DIEP Bui Khac

  Dept. of Science and Technology, Ministry of Transport

• TAMURA Satoshi

  Material Handling Machinery Design Department Steel Structure & Material Handling Machinery Factory, Mitsui Engineering & Shipbuilding Co., Ltd.

• HAMADA Yuzuru

  Research and Development Center, DPS Bridge Works Co., Ltd.

抄録

The parametric study using FEM and the experiment of T-beams prestressed with external tendons have been performed to investigate the factors thought to influence on the shear mechanism of externally prestressed concrete beams. The effects of prestressing force and stirrup can be observed as important factors to the failure mechanism. The simplified truss model, having a small number of degrees of freedom, has been modified and proposed by adapting the formulation to predict the angle of concentrated stress flow and the thickness of diagonal compression members for evaluating the shear carrying capacity of externally prestressed concrete beams. The predicted results show the good agreement with experimental results.

収録刊行物

• 土木学会論文集Ｅ

  土木学会論文集Ｅ 63 (4), 562-574, 2007

  公益社団法人 土木学会

キーワード

• simplified truss model
• shear carrying capacity
• externally prestressed concrete beams
• inclination of concentrated stress flow
• thickness of diagonal compression members

詳細情報

• CRID: 1390282680229915264
• NII論文ID: 130004943129
• DOI: 10.2208/jsceje.63.562
• ISSN: 18806066
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可