EFFECTIVE TORSIONAL RIGIDITY OF REINFORCED CONCRETE MEMBERS

A simple procedure for calculating effective torsional rigidity of reinforced concrete (RC) members is presented. The proposed method relates torsional rigidity, an important parameter for 3-D analysis of RC structures, to the applied torque taking the effect of reinforcement into account. The method is applicable throughout the entire loading history from the uncracked state to the fully cracked state and even to the ultimate limit state. Prior to cracking, the elastic and uncracked torsional rigidity of the section is used, while after the formation of torsional cracking, the proposed procedure interpolates between torsional rigidities immediately after cracking, and that at the ultimate limit state. The procedure is verified by comparing predictions with test data available in the literature. Comparison between the computed and experimental torque-twist curves shows that the proposed procedure for computing effective torsional rigidity is reasonably accurate.

Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
Corporate Authors:
American Concrete Institute (ACI)

38800 Country Club Drive
Farmington Hills, MI United States 48331
Authors:
- TENG, S
Publication Date: 2004-3

Language

English

Media Info

Features: Figures; References; Tables;
Pagination: p. 252-260
Serial:
- ACI Structural Journal
- Volume: 101
- Issue Number: 2
- Publisher: American Concrete Institute (ACI)
- ISSN: 0889-3241
- Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

TRT Terms: Cracking; Reinforced concrete; Rigid structures; Structural deterioration and defects; Structural members; Structural models; Torsional strength; Ultimate load design
Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

Accession Number: 00971271
Record Type: Publication
Files: TRIS
Created Date: Mar 8 2004 12:00AM