Step by Step Post-Tensioning: Influence of the Friction Losses

In this paper the influence of the friction losses upon the multiple step post-tensioning procedure is analysed. The result of the study is an analytical solution which shows that, in the case of significant friction resistance, during the post-tensioning steps only a share of the total length of the tendons is really stretched. This fact reflects significantly on the distribution of the axial force and of the elongation along the cables. The comparison of theoretical values predicted for friction coefficients with experimental data provided by the post-tensioning of the cables of a large clinker silos shows a satisfying agreement. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10168664
• Authors:
  • LENZI, M
  • ZOLI, F
• Publication Date: 2007-2

Language

• English

Media Info

• Pagination: 79-85
• Serial:
  • STRUCTURAL ENGINEERING INTERNATIONAL
  • Volume: 17
  • Issue Number: 1
  • Publisher: International Association for Bridge and Structural Engineering
  • ISSN: 1016-8664

Subject/Index Terms

• TRT Terms: Axis; Cables; Coefficient of friction; Force; Friction; General surface features of the earth; Geomorphology; Mathematical analysis; Mathematical models; Posttensioning; Silos; Slag; Strength of materials; Tendons; Tests
• ITRD Terms: 6471: Analysis (math); 6405: Axis; 4530: Cable; 5460: Coefficient of friction; 5421: Force; 5452: Friction; 6473: Mathematical model; 4789: Post tensioning; 3618: Silo; 4561: Slag; 5544: Strength (mater); 4076: Structure (geomorphol); 4778: Tendon; 6255: Test
• Subject Areas: Bridges and other structures; Design; Materials; I20: Design and Planning of Transport Infrastructure; I24: Design of Bridges and Retaining Walls; I32: Concrete;

Filing Info

• Accession Number: 01043703
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Mar 9 2007 8:11AM