Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 11, Number 6, June 2001 , pages 575-590
DOI: https://doi.org/10.12989/sem.2001.11.6.575
 


Analysis and design for torsion in reinforced and prestressed concrete beams
Khaldoun N. Rahal(Kuwait)

 
Abstract
    This paper presents a simplified method for the design and analysis of non-prestressed,
partially prestressed, and fully prestressed concrete beams subjected to pure torsion. The proposed model
relates the torsional strength to the concrete compressive strength and to the amounts of transverse and
longitudinal reinforcement. To check the adequacy of this simple method, the calculated strength and
mode of failure are checked against the experimental results of 17 prestressed concrete 66 reinforced
concrete beam tests available in the literature, and very good agreement is found. The simplicity of the
method is illustrated by two examples, one for design and another for analysis.
 
Key Words
    beams; code methods; design; mode of failure; prestressed concrete; reinforced concrete; shear; strength; torsion.
 
Address
Khaldoun N. Rahal, Department of Civil Engineering, Faculty of Engineering and Petroleum, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
 

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