Post-Cracking Torsional Rigidity of Reinforced Concrete Sections

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Title: Post-Cracking Torsional Rigidity of Reinforced Concrete Sections

Author(s): Thomas T. C. Hsu

Publication: Journal Proceedings

Volume: 70

Issue: 5

Appears on pages(s): 352-360

Keywords: beams (supports) ; cracking (fracturing) ; reinforced concrete; shear modulus; torsion; stiffness; structural analysis; structuraI design.

Date: 5/1/1973

Abstract:
In statically indeterminate structures torsional moments can be determined only if the torsional stiffness of reinforced concrete members are known. This paper presents a theory for post-cracking torsional rigidity, which is developed using a new concept of post-cracking shear modulus. This new concept renders the theory generally applicable to arbitrary cross sections as well as simplifies the derivation of post-cracking torsional rigidity.